diff --git a/sdk/c/include/synor/bridge.h b/sdk/c/include/synor/bridge.h
new file mode 100644
index 0000000..fe8f53d
--- /dev/null
+++ b/sdk/c/include/synor/bridge.h
@@ -0,0 +1,397 @@
+/**
+ * @file bridge.h
+ * @brief Synor Bridge SDK for C
+ *
+ * Cross-chain asset transfers with lock-mint and burn-unlock patterns.
+ */
+
+#ifndef SYNOR_BRIDGE_H
+#define SYNOR_BRIDGE_H
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* ==================== Error Types ==================== */
+
+typedef enum {
+    SYNOR_BRIDGE_OK = 0,
+    SYNOR_BRIDGE_ERROR_CLIENT_CLOSED,
+    SYNOR_BRIDGE_ERROR_NETWORK,
+    SYNOR_BRIDGE_ERROR_HTTP,
+    SYNOR_BRIDGE_ERROR_ENCODING,
+    SYNOR_BRIDGE_ERROR_DECODING,
+    SYNOR_BRIDGE_ERROR_INVALID_RESPONSE,
+    SYNOR_BRIDGE_ERROR_MEMORY,
+    SYNOR_BRIDGE_ERROR_TIMEOUT,
+    SYNOR_BRIDGE_ERROR_CONFIRMATIONS_PENDING,
+    SYNOR_BRIDGE_ERROR_UNKNOWN
+} synor_bridge_error_t;
+
+/* ==================== Configuration ==================== */
+
+typedef struct {
+    const char* api_key;
+    const char* endpoint;       /* Default: https://bridge.synor.io/v1 */
+    uint32_t timeout_ms;        /* Default: 60000 */
+    uint32_t retries;           /* Default: 3 */
+    bool debug;
+} synor_bridge_config_t;
+
+/* ==================== Enums ==================== */
+
+typedef enum {
+    SYNOR_CHAIN_SYNOR,
+    SYNOR_CHAIN_ETHEREUM,
+    SYNOR_CHAIN_POLYGON,
+    SYNOR_CHAIN_ARBITRUM,
+    SYNOR_CHAIN_OPTIMISM,
+    SYNOR_CHAIN_BSC,
+    SYNOR_CHAIN_AVALANCHE,
+    SYNOR_CHAIN_SOLANA,
+    SYNOR_CHAIN_COSMOS
+} synor_chain_id_t;
+
+typedef enum {
+    SYNOR_ASSET_NATIVE,
+    SYNOR_ASSET_ERC20,
+    SYNOR_ASSET_ERC721,
+    SYNOR_ASSET_ERC1155
+} synor_asset_type_t;
+
+typedef enum {
+    SYNOR_TRANSFER_PENDING,
+    SYNOR_TRANSFER_LOCKED,
+    SYNOR_TRANSFER_CONFIRMING,
+    SYNOR_TRANSFER_MINTING,
+    SYNOR_TRANSFER_COMPLETED,
+    SYNOR_TRANSFER_FAILED,
+    SYNOR_TRANSFER_REFUNDED
+} synor_transfer_status_t;
+
+typedef enum {
+    SYNOR_DIRECTION_LOCK_MINT,
+    SYNOR_DIRECTION_BURN_UNLOCK
+} synor_transfer_direction_t;
+
+/* ==================== Chain Types ==================== */
+
+typedef struct {
+    char* name;
+    char* symbol;
+    int32_t decimals;
+} synor_native_currency_t;
+
+typedef struct {
+    synor_chain_id_t id;
+    char* name;
+    int64_t chain_id;
+    char* rpc_url;
+    char* explorer_url;
+    synor_native_currency_t native_currency;
+    int32_t confirmations;
+    int32_t estimated_block_time;
+    bool supported;
+} synor_chain_t;
+
+typedef struct {
+    synor_chain_t* chains;
+    size_t count;
+} synor_chain_list_t;
+
+/* ==================== Asset Types ==================== */
+
+typedef struct {
+    char* id;
+    char* symbol;
+    char* name;
+    synor_asset_type_t type;
+    synor_chain_id_t chain;
+    char* contract_address;
+    int32_t decimals;
+    char* logo_url;
+    bool verified;
+} synor_asset_t;
+
+typedef struct {
+    synor_asset_t* assets;
+    size_t count;
+} synor_asset_list_t;
+
+typedef struct {
+    synor_asset_t original_asset;
+    synor_asset_t wrapped_asset;
+    synor_chain_id_t chain;
+    char* bridge_contract;
+} synor_wrapped_asset_t;
+
+/* ==================== Transfer Types ==================== */
+
+typedef struct {
+    char* id;
+    synor_transfer_direction_t direction;
+    synor_transfer_status_t status;
+    synor_chain_id_t source_chain;
+    synor_chain_id_t target_chain;
+    synor_asset_t asset;
+    char* amount;
+    char* sender;
+    char* recipient;
+    char* source_tx_hash;
+    char* target_tx_hash;
+    char* fee;
+    synor_asset_t fee_asset;
+    int64_t created_at;
+    int64_t updated_at;
+    int64_t completed_at;
+    char* error_message;
+} synor_transfer_t;
+
+typedef struct {
+    synor_transfer_t* transfers;
+    size_t count;
+} synor_transfer_list_t;
+
+typedef struct {
+    synor_transfer_status_t* status;  /* NULL for all */
+    synor_chain_id_t* source_chain;   /* NULL for all */
+    synor_chain_id_t* target_chain;   /* NULL for all */
+    int32_t limit;
+    int32_t offset;
+} synor_transfer_filter_t;
+
+/* ==================== Lock-Mint Types ==================== */
+
+typedef struct {
+    char* validator;
+    char* signature;
+    int64_t timestamp;
+} synor_validator_signature_t;
+
+typedef struct {
+    char* id;
+    char* tx_hash;
+    synor_chain_id_t source_chain;
+    synor_chain_id_t target_chain;
+    synor_asset_t asset;
+    char* amount;
+    char* sender;
+    char* recipient;
+    int64_t lock_timestamp;
+    int32_t confirmations;
+    int32_t required_confirmations;
+} synor_lock_receipt_t;
+
+typedef struct {
+    synor_lock_receipt_t lock_receipt;
+    char** merkle_proof;
+    size_t merkle_proof_count;
+    char* block_header;
+    synor_validator_signature_t* signatures;
+    size_t signature_count;
+} synor_lock_proof_t;
+
+typedef struct {
+    const char* recipient;
+    int64_t deadline;
+    double slippage;
+} synor_lock_options_t;
+
+typedef struct {
+    const char* gas_limit;
+    const char* max_fee_per_gas;
+    const char* max_priority_fee_per_gas;
+} synor_mint_options_t;
+
+/* ==================== Burn-Unlock Types ==================== */
+
+typedef struct {
+    char* id;
+    char* tx_hash;
+    synor_chain_id_t source_chain;
+    synor_chain_id_t target_chain;
+    synor_asset_t wrapped_asset;
+    synor_asset_t original_asset;
+    char* amount;
+    char* sender;
+    char* recipient;
+    int64_t burn_timestamp;
+    int32_t confirmations;
+    int32_t required_confirmations;
+} synor_burn_receipt_t;
+
+typedef struct {
+    synor_burn_receipt_t burn_receipt;
+    char** merkle_proof;
+    size_t merkle_proof_count;
+    char* block_header;
+    synor_validator_signature_t* signatures;
+    size_t signature_count;
+} synor_burn_proof_t;
+
+typedef struct {
+    const char* recipient;
+    int64_t deadline;
+} synor_burn_options_t;
+
+typedef struct {
+    const char* gas_limit;
+    const char* gas_price;
+} synor_unlock_options_t;
+
+/* ==================== Fee Types ==================== */
+
+typedef struct {
+    char* bridge_fee;
+    char* gas_fee_source;
+    char* gas_fee_target;
+    char* total_fee;
+    synor_asset_t fee_asset;
+    int32_t estimated_time;
+    char* exchange_rate;
+} synor_fee_estimate_t;
+
+typedef struct {
+    synor_asset_t from_asset;
+    synor_asset_t to_asset;
+    char* rate;
+    char* inverse_rate;
+    int64_t last_updated;
+    char* source;
+} synor_exchange_rate_t;
+
+/* ==================== Transaction Types ==================== */
+
+typedef struct {
+    char* tx_hash;
+    synor_chain_id_t chain;
+    char* from;
+    char* to;
+    char* value;
+    char* data;
+    char* gas_limit;
+    char* gas_price;
+    char* max_fee_per_gas;
+    char* max_priority_fee_per_gas;
+    int32_t nonce;
+    char* signature;
+} synor_signed_tx_t;
+
+/* ==================== Client Handle ==================== */
+
+typedef struct synor_bridge synor_bridge_t;
+
+/* ==================== Lifecycle Functions ==================== */
+
+synor_bridge_t* synor_bridge_create(const synor_bridge_config_t* config);
+void synor_bridge_destroy(synor_bridge_t* bridge);
+bool synor_bridge_is_closed(synor_bridge_t* bridge);
+bool synor_bridge_health_check(synor_bridge_t* bridge);
+
+/* ==================== Chain Operations ==================== */
+
+synor_bridge_error_t synor_bridge_get_supported_chains(synor_bridge_t* bridge,
+    synor_chain_list_t* result);
+synor_bridge_error_t synor_bridge_get_chain(synor_bridge_t* bridge,
+    synor_chain_id_t chain_id, synor_chain_t* result);
+bool synor_bridge_is_chain_supported(synor_bridge_t* bridge, synor_chain_id_t chain_id);
+
+void synor_chain_free(synor_chain_t* chain);
+void synor_chain_list_free(synor_chain_list_t* list);
+
+/* ==================== Asset Operations ==================== */
+
+synor_bridge_error_t synor_bridge_get_supported_assets(synor_bridge_t* bridge,
+    synor_chain_id_t chain_id, synor_asset_list_t* result);
+synor_bridge_error_t synor_bridge_get_asset(synor_bridge_t* bridge,
+    const char* asset_id, synor_asset_t* result);
+synor_bridge_error_t synor_bridge_get_wrapped_asset(synor_bridge_t* bridge,
+    const char* original_asset_id, synor_chain_id_t target_chain,
+    synor_wrapped_asset_t* result);
+
+void synor_asset_free(synor_asset_t* asset);
+void synor_asset_list_free(synor_asset_list_t* list);
+void synor_wrapped_asset_free(synor_wrapped_asset_t* asset);
+
+/* ==================== Fee Operations ==================== */
+
+synor_bridge_error_t synor_bridge_estimate_fee(synor_bridge_t* bridge,
+    const char* asset, const char* amount,
+    synor_chain_id_t source_chain, synor_chain_id_t target_chain,
+    synor_fee_estimate_t* result);
+synor_bridge_error_t synor_bridge_get_exchange_rate(synor_bridge_t* bridge,
+    const char* from_asset, const char* to_asset, synor_exchange_rate_t* result);
+
+void synor_fee_estimate_free(synor_fee_estimate_t* fee);
+void synor_exchange_rate_free(synor_exchange_rate_t* rate);
+
+/* ==================== Lock-Mint Flow ==================== */
+
+synor_bridge_error_t synor_bridge_lock(synor_bridge_t* bridge,
+    const char* asset, const char* amount, synor_chain_id_t target_chain,
+    const synor_lock_options_t* options, synor_lock_receipt_t* result);
+synor_bridge_error_t synor_bridge_get_lock_proof(synor_bridge_t* bridge,
+    const char* lock_receipt_id, synor_lock_proof_t* result);
+synor_bridge_error_t synor_bridge_wait_for_lock_proof(synor_bridge_t* bridge,
+    const char* lock_receipt_id, uint32_t poll_interval_ms, uint32_t max_wait_ms,
+    synor_lock_proof_t* result);
+synor_bridge_error_t synor_bridge_mint(synor_bridge_t* bridge,
+    const synor_lock_proof_t* proof, const char* target_address,
+    const synor_mint_options_t* options, synor_signed_tx_t* result);
+
+void synor_lock_receipt_free(synor_lock_receipt_t* receipt);
+void synor_lock_proof_free(synor_lock_proof_t* proof);
+
+/* ==================== Burn-Unlock Flow ==================== */
+
+synor_bridge_error_t synor_bridge_burn(synor_bridge_t* bridge,
+    const char* wrapped_asset, const char* amount,
+    const synor_burn_options_t* options, synor_burn_receipt_t* result);
+synor_bridge_error_t synor_bridge_get_burn_proof(synor_bridge_t* bridge,
+    const char* burn_receipt_id, synor_burn_proof_t* result);
+synor_bridge_error_t synor_bridge_wait_for_burn_proof(synor_bridge_t* bridge,
+    const char* burn_receipt_id, uint32_t poll_interval_ms, uint32_t max_wait_ms,
+    synor_burn_proof_t* result);
+synor_bridge_error_t synor_bridge_unlock(synor_bridge_t* bridge,
+    const synor_burn_proof_t* proof, const synor_unlock_options_t* options,
+    synor_signed_tx_t* result);
+
+void synor_burn_receipt_free(synor_burn_receipt_t* receipt);
+void synor_burn_proof_free(synor_burn_proof_t* proof);
+
+/* ==================== Transfer Operations ==================== */
+
+synor_bridge_error_t synor_bridge_get_transfer(synor_bridge_t* bridge,
+    const char* transfer_id, synor_transfer_t* result);
+synor_bridge_error_t synor_bridge_get_transfer_status(synor_bridge_t* bridge,
+    const char* transfer_id, synor_transfer_status_t* status);
+synor_bridge_error_t synor_bridge_list_transfers(synor_bridge_t* bridge,
+    const synor_transfer_filter_t* filter, synor_transfer_list_t* result);
+synor_bridge_error_t synor_bridge_wait_for_transfer(synor_bridge_t* bridge,
+    const char* transfer_id, uint32_t poll_interval_ms, uint32_t max_wait_ms,
+    synor_transfer_t* result);
+
+void synor_transfer_free(synor_transfer_t* transfer);
+void synor_transfer_list_free(synor_transfer_list_t* list);
+void synor_signed_tx_free(synor_signed_tx_t* tx);
+
+/* ==================== Convenience Functions ==================== */
+
+synor_bridge_error_t synor_bridge_bridge_to(synor_bridge_t* bridge,
+    const char* asset, const char* amount, synor_chain_id_t target_chain,
+    const char* target_address, const synor_lock_options_t* lock_options,
+    const synor_mint_options_t* mint_options, synor_transfer_t* result);
+synor_bridge_error_t synor_bridge_bridge_back(synor_bridge_t* bridge,
+    const char* wrapped_asset, const char* amount,
+    const synor_burn_options_t* burn_options,
+    const synor_unlock_options_t* unlock_options, synor_transfer_t* result);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* SYNOR_BRIDGE_H */
diff --git a/sdk/c/include/synor/database.h b/sdk/c/include/synor/database.h
new file mode 100644
index 0000000..ba65897
--- /dev/null
+++ b/sdk/c/include/synor/database.h
@@ -0,0 +1,279 @@
+/**
+ * @file database.h
+ * @brief Synor Database SDK for C
+ *
+ * Multi-model database with Key-Value, Document, Vector, and Time Series stores.
+ */
+
+#ifndef SYNOR_DATABASE_H
+#define SYNOR_DATABASE_H
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* ==================== Error Types ==================== */
+
+typedef enum {
+    SYNOR_DB_OK = 0,
+    SYNOR_DB_ERROR_CLIENT_CLOSED,
+    SYNOR_DB_ERROR_NETWORK,
+    SYNOR_DB_ERROR_HTTP,
+    SYNOR_DB_ERROR_ENCODING,
+    SYNOR_DB_ERROR_DECODING,
+    SYNOR_DB_ERROR_INVALID_RESPONSE,
+    SYNOR_DB_ERROR_MEMORY,
+    SYNOR_DB_ERROR_UNKNOWN
+} synor_db_error_t;
+
+/* ==================== Configuration ==================== */
+
+typedef struct {
+    const char* api_key;
+    const char* endpoint;       /* Default: https://db.synor.io/v1 */
+    uint32_t timeout_ms;        /* Default: 60000 */
+    uint32_t retries;           /* Default: 3 */
+    bool debug;
+} synor_db_config_t;
+
+/* ==================== Key-Value Types ==================== */
+
+typedef struct {
+    char* key;
+    char* value;         /* JSON string */
+    int32_t ttl;
+    int64_t created_at;
+    int64_t updated_at;
+} synor_kv_entry_t;
+
+typedef struct {
+    synor_kv_entry_t* items;
+    size_t count;
+} synor_kv_list_t;
+
+/* ==================== Document Types ==================== */
+
+typedef struct {
+    char* id;
+    char* collection;
+    char* data;          /* JSON string */
+    int64_t created_at;
+    int64_t updated_at;
+} synor_document_t;
+
+typedef struct {
+    synor_document_t* documents;
+    size_t count;
+} synor_document_list_t;
+
+typedef struct {
+    const char* filter;  /* JSON string */
+    const char* sort;    /* JSON string */
+    int32_t limit;
+    int32_t offset;
+} synor_document_query_t;
+
+/* ==================== Vector Types ==================== */
+
+typedef struct {
+    const char* id;
+    const double* vector;
+    size_t vector_size;
+    const char* metadata;  /* JSON string, optional */
+} synor_vector_entry_t;
+
+typedef struct {
+    char* id;
+    double score;
+    double* vector;
+    size_t vector_size;
+    char* metadata;
+} synor_search_result_t;
+
+typedef struct {
+    synor_search_result_t* results;
+    size_t count;
+} synor_search_result_list_t;
+
+/* ==================== Time Series Types ==================== */
+
+typedef struct {
+    int64_t timestamp;
+    double value;
+    const char* tags;   /* JSON string, optional */
+} synor_data_point_t;
+
+typedef struct {
+    int64_t start;
+    int64_t end;
+} synor_time_range_t;
+
+typedef struct {
+    const char* function;  /* avg, sum, min, max, count */
+    const char* interval;  /* 1m, 5m, 1h, 1d */
+} synor_aggregation_t;
+
+typedef struct {
+    synor_data_point_t* points;
+    size_t count;
+} synor_data_point_list_t;
+
+/* ==================== Client Handle ==================== */
+
+typedef struct synor_database synor_database_t;
+
+/* ==================== Lifecycle Functions ==================== */
+
+/**
+ * Create a new database client.
+ */
+synor_database_t* synor_database_create(const synor_db_config_t* config);
+
+/**
+ * Destroy the database client and free resources.
+ */
+void synor_database_destroy(synor_database_t* db);
+
+/**
+ * Check if the client is closed.
+ */
+bool synor_database_is_closed(synor_database_t* db);
+
+/**
+ * Perform a health check.
+ */
+bool synor_database_health_check(synor_database_t* db);
+
+/* ==================== Key-Value Operations ==================== */
+
+/**
+ * Get a value by key.
+ * Caller must free result->value.
+ */
+synor_db_error_t synor_kv_get(synor_database_t* db, const char* key, char** value);
+
+/**
+ * Set a value for a key.
+ */
+synor_db_error_t synor_kv_set(synor_database_t* db, const char* key,
+    const char* value, int32_t ttl);
+
+/**
+ * Delete a key.
+ */
+synor_db_error_t synor_kv_delete(synor_database_t* db, const char* key);
+
+/**
+ * List keys by prefix.
+ * Caller must free result with synor_kv_list_free.
+ */
+synor_db_error_t synor_kv_list(synor_database_t* db, const char* prefix,
+    synor_kv_list_t* result);
+
+/**
+ * Free a key-value list.
+ */
+void synor_kv_list_free(synor_kv_list_t* list);
+
+/* ==================== Document Operations ==================== */
+
+/**
+ * Create a document.
+ * Caller must free returned id.
+ */
+synor_db_error_t synor_doc_create(synor_database_t* db, const char* collection,
+    const char* document, char** id);
+
+/**
+ * Get a document by ID.
+ * Caller must free result with synor_document_free.
+ */
+synor_db_error_t synor_doc_get(synor_database_t* db, const char* collection,
+    const char* id, synor_document_t* result);
+
+/**
+ * Update a document.
+ */
+synor_db_error_t synor_doc_update(synor_database_t* db, const char* collection,
+    const char* id, const char* update);
+
+/**
+ * Delete a document.
+ */
+synor_db_error_t synor_doc_delete(synor_database_t* db, const char* collection,
+    const char* id);
+
+/**
+ * Query documents.
+ * Caller must free result with synor_document_list_free.
+ */
+synor_db_error_t synor_doc_query(synor_database_t* db, const char* collection,
+    const synor_document_query_t* query, synor_document_list_t* result);
+
+/**
+ * Free a document.
+ */
+void synor_document_free(synor_document_t* doc);
+
+/**
+ * Free a document list.
+ */
+void synor_document_list_free(synor_document_list_t* list);
+
+/* ==================== Vector Operations ==================== */
+
+/**
+ * Upsert vectors.
+ */
+synor_db_error_t synor_vector_upsert(synor_database_t* db, const char* collection,
+    const synor_vector_entry_t* vectors, size_t count);
+
+/**
+ * Search for similar vectors.
+ * Caller must free result with synor_search_result_list_free.
+ */
+synor_db_error_t synor_vector_search(synor_database_t* db, const char* collection,
+    const double* vector, size_t vector_size, int32_t k,
+    synor_search_result_list_t* result);
+
+/**
+ * Delete vectors by IDs.
+ */
+synor_db_error_t synor_vector_delete(synor_database_t* db, const char* collection,
+    const char** ids, size_t count);
+
+/**
+ * Free search results.
+ */
+void synor_search_result_list_free(synor_search_result_list_t* list);
+
+/* ==================== Time Series Operations ==================== */
+
+/**
+ * Write data points.
+ */
+synor_db_error_t synor_ts_write(synor_database_t* db, const char* series,
+    const synor_data_point_t* points, size_t count);
+
+/**
+ * Query data points.
+ * Caller must free result with synor_data_point_list_free.
+ */
+synor_db_error_t synor_ts_query(synor_database_t* db, const char* series,
+    const synor_time_range_t* range, const synor_aggregation_t* aggregation,
+    synor_data_point_list_t* result);
+
+/**
+ * Free data point list.
+ */
+void synor_data_point_list_free(synor_data_point_list_t* list);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* SYNOR_DATABASE_H */
diff --git a/sdk/c/include/synor/hosting.h b/sdk/c/include/synor/hosting.h
new file mode 100644
index 0000000..1732174
--- /dev/null
+++ b/sdk/c/include/synor/hosting.h
@@ -0,0 +1,295 @@
+/**
+ * @file hosting.h
+ * @brief Synor Hosting SDK for C
+ *
+ * Decentralized web hosting with domain management, DNS, deployments, and SSL.
+ */
+
+#ifndef SYNOR_HOSTING_H
+#define SYNOR_HOSTING_H
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* ==================== Error Types ==================== */
+
+typedef enum {
+    SYNOR_HOSTING_OK = 0,
+    SYNOR_HOSTING_ERROR_CLIENT_CLOSED,
+    SYNOR_HOSTING_ERROR_NETWORK,
+    SYNOR_HOSTING_ERROR_HTTP,
+    SYNOR_HOSTING_ERROR_ENCODING,
+    SYNOR_HOSTING_ERROR_DECODING,
+    SYNOR_HOSTING_ERROR_INVALID_RESPONSE,
+    SYNOR_HOSTING_ERROR_MEMORY,
+    SYNOR_HOSTING_ERROR_UNKNOWN
+} synor_hosting_error_t;
+
+/* ==================== Configuration ==================== */
+
+typedef struct {
+    const char* api_key;
+    const char* endpoint;       /* Default: https://hosting.synor.io/v1 */
+    uint32_t timeout_ms;        /* Default: 60000 */
+    uint32_t retries;           /* Default: 3 */
+    bool debug;
+} synor_hosting_config_t;
+
+/* ==================== Enums ==================== */
+
+typedef enum {
+    SYNOR_DOMAIN_PENDING,
+    SYNOR_DOMAIN_ACTIVE,
+    SYNOR_DOMAIN_EXPIRED,
+    SYNOR_DOMAIN_SUSPENDED
+} synor_domain_status_t;
+
+typedef enum {
+    SYNOR_DEPLOYMENT_PENDING,
+    SYNOR_DEPLOYMENT_BUILDING,
+    SYNOR_DEPLOYMENT_DEPLOYING,
+    SYNOR_DEPLOYMENT_ACTIVE,
+    SYNOR_DEPLOYMENT_FAILED,
+    SYNOR_DEPLOYMENT_INACTIVE
+} synor_deployment_status_t;
+
+typedef enum {
+    SYNOR_CERT_PENDING,
+    SYNOR_CERT_ISSUED,
+    SYNOR_CERT_EXPIRED,
+    SYNOR_CERT_REVOKED
+} synor_cert_status_t;
+
+typedef enum {
+    SYNOR_DNS_A,
+    SYNOR_DNS_AAAA,
+    SYNOR_DNS_CNAME,
+    SYNOR_DNS_TXT,
+    SYNOR_DNS_MX,
+    SYNOR_DNS_NS,
+    SYNOR_DNS_SRV,
+    SYNOR_DNS_CAA
+} synor_dns_record_type_t;
+
+/* ==================== Domain Types ==================== */
+
+typedef struct {
+    char* cid;
+    char** ipv4;
+    size_t ipv4_count;
+    char** ipv6;
+    size_t ipv6_count;
+    char* cname;
+    char** txt;
+    size_t txt_count;
+} synor_domain_record_t;
+
+typedef struct {
+    char* name;
+    synor_domain_status_t status;
+    char* owner;
+    int64_t registered_at;
+    int64_t expires_at;
+    bool auto_renew;
+    synor_domain_record_t* records;
+} synor_domain_t;
+
+typedef struct {
+    synor_domain_t* domains;
+    size_t count;
+} synor_domain_list_t;
+
+typedef struct {
+    char* name;
+    bool available;
+    double price;
+    bool premium;
+} synor_domain_availability_t;
+
+typedef struct {
+    int32_t years;
+    bool auto_renew;
+} synor_register_domain_options_t;
+
+/* ==================== DNS Types ==================== */
+
+typedef struct {
+    synor_dns_record_type_t type;
+    char* name;
+    char* value;
+    int32_t ttl;
+    int32_t priority;
+} synor_dns_record_t;
+
+typedef struct {
+    char* domain;
+    synor_dns_record_t* records;
+    size_t record_count;
+    int64_t updated_at;
+} synor_dns_zone_t;
+
+/* ==================== Deployment Types ==================== */
+
+typedef struct {
+    char* id;
+    char* domain;
+    char* cid;
+    synor_deployment_status_t status;
+    char* url;
+    int64_t created_at;
+    int64_t updated_at;
+    char* build_logs;
+    char* error_message;
+} synor_deployment_t;
+
+typedef struct {
+    synor_deployment_t* deployments;
+    size_t count;
+} synor_deployment_list_t;
+
+typedef struct {
+    const char* domain;
+    const char* subdomain;
+    bool spa;
+    bool clean_urls;
+    bool trailing_slash;
+} synor_deploy_options_t;
+
+/* ==================== SSL Types ==================== */
+
+typedef struct {
+    char* domain;
+    synor_cert_status_t status;
+    bool auto_renew;
+    char* issuer;
+    int64_t issued_at;
+    int64_t expires_at;
+    char* fingerprint;
+} synor_certificate_t;
+
+typedef struct {
+    bool include_www;
+    bool auto_renew;
+} synor_provision_ssl_options_t;
+
+/* ==================== Analytics Types ==================== */
+
+typedef struct {
+    char* path;
+    int64_t views;
+} synor_page_view_t;
+
+typedef struct {
+    char* domain;
+    char* period;
+    int64_t page_views;
+    int64_t unique_visitors;
+    int64_t bandwidth;
+    synor_page_view_t* top_pages;
+    size_t top_pages_count;
+} synor_analytics_data_t;
+
+typedef struct {
+    const char* period;
+    const char* start;
+    const char* end;
+} synor_analytics_options_t;
+
+/* ==================== Client Handle ==================== */
+
+typedef struct synor_hosting synor_hosting_t;
+
+/* ==================== Lifecycle Functions ==================== */
+
+synor_hosting_t* synor_hosting_create(const synor_hosting_config_t* config);
+void synor_hosting_destroy(synor_hosting_t* hosting);
+bool synor_hosting_is_closed(synor_hosting_t* hosting);
+bool synor_hosting_health_check(synor_hosting_t* hosting);
+
+/* ==================== Domain Operations ==================== */
+
+synor_hosting_error_t synor_hosting_check_availability(synor_hosting_t* hosting,
+    const char* name, synor_domain_availability_t* result);
+synor_hosting_error_t synor_hosting_register_domain(synor_hosting_t* hosting,
+    const char* name, const synor_register_domain_options_t* options,
+    synor_domain_t* result);
+synor_hosting_error_t synor_hosting_get_domain(synor_hosting_t* hosting,
+    const char* name, synor_domain_t* result);
+synor_hosting_error_t synor_hosting_list_domains(synor_hosting_t* hosting,
+    synor_domain_list_t* result);
+synor_hosting_error_t synor_hosting_resolve_domain(synor_hosting_t* hosting,
+    const char* name, synor_domain_record_t* result);
+synor_hosting_error_t synor_hosting_renew_domain(synor_hosting_t* hosting,
+    const char* name, int32_t years, synor_domain_t* result);
+
+void synor_domain_free(synor_domain_t* domain);
+void synor_domain_list_free(synor_domain_list_t* list);
+void synor_domain_record_free(synor_domain_record_t* record);
+void synor_domain_availability_free(synor_domain_availability_t* avail);
+
+/* ==================== DNS Operations ==================== */
+
+synor_hosting_error_t synor_hosting_get_dns_zone(synor_hosting_t* hosting,
+    const char* domain, synor_dns_zone_t* result);
+synor_hosting_error_t synor_hosting_set_dns_records(synor_hosting_t* hosting,
+    const char* domain, const synor_dns_record_t* records, size_t count,
+    synor_dns_zone_t* result);
+synor_hosting_error_t synor_hosting_add_dns_record(synor_hosting_t* hosting,
+    const char* domain, const synor_dns_record_t* record, synor_dns_zone_t* result);
+synor_hosting_error_t synor_hosting_delete_dns_record(synor_hosting_t* hosting,
+    const char* domain, const char* record_type, const char* name,
+    synor_dns_zone_t* result);
+
+void synor_dns_zone_free(synor_dns_zone_t* zone);
+
+/* ==================== Deployment Operations ==================== */
+
+synor_hosting_error_t synor_hosting_deploy(synor_hosting_t* hosting,
+    const char* cid, const synor_deploy_options_t* options,
+    synor_deployment_t* result);
+synor_hosting_error_t synor_hosting_get_deployment(synor_hosting_t* hosting,
+    const char* id, synor_deployment_t* result);
+synor_hosting_error_t synor_hosting_list_deployments(synor_hosting_t* hosting,
+    const char* domain, synor_deployment_list_t* result);
+synor_hosting_error_t synor_hosting_rollback(synor_hosting_t* hosting,
+    const char* domain, const char* deployment_id, synor_deployment_t* result);
+synor_hosting_error_t synor_hosting_delete_deployment(synor_hosting_t* hosting,
+    const char* id);
+
+void synor_deployment_free(synor_deployment_t* deployment);
+void synor_deployment_list_free(synor_deployment_list_t* list);
+
+/* ==================== SSL Operations ==================== */
+
+synor_hosting_error_t synor_hosting_provision_ssl(synor_hosting_t* hosting,
+    const char* domain, const synor_provision_ssl_options_t* options,
+    synor_certificate_t* result);
+synor_hosting_error_t synor_hosting_get_certificate(synor_hosting_t* hosting,
+    const char* domain, synor_certificate_t* result);
+synor_hosting_error_t synor_hosting_renew_certificate(synor_hosting_t* hosting,
+    const char* domain, synor_certificate_t* result);
+synor_hosting_error_t synor_hosting_delete_certificate(synor_hosting_t* hosting,
+    const char* domain);
+
+void synor_certificate_free(synor_certificate_t* cert);
+
+/* ==================== Analytics Operations ==================== */
+
+synor_hosting_error_t synor_hosting_get_analytics(synor_hosting_t* hosting,
+    const char* domain, const synor_analytics_options_t* options,
+    synor_analytics_data_t* result);
+synor_hosting_error_t synor_hosting_purge_cache(synor_hosting_t* hosting,
+    const char* domain, const char** paths, size_t path_count, int64_t* purged);
+
+void synor_analytics_data_free(synor_analytics_data_t* data);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* SYNOR_HOSTING_H */
diff --git a/sdk/c/src/bridge/bridge.c b/sdk/c/src/bridge/bridge.c
new file mode 100644
index 0000000..7592e47
--- /dev/null
+++ b/sdk/c/src/bridge/bridge.c
@@ -0,0 +1,441 @@
+/**
+ * @file bridge.c
+ * @brief Synor Bridge SDK implementation
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include "synor/bridge.h"
+
+/* Forward declarations from common.c */
+typedef struct synor_http_client synor_http_client_t;
+synor_http_client_t* synor_http_client_create(
+    const char* api_key, const char* endpoint,
+    uint32_t timeout_ms, uint32_t retries, bool debug);
+void synor_http_client_destroy(synor_http_client_t* client);
+synor_error_t synor_http_get(synor_http_client_t* client, const char* path,
+    char** response, size_t* response_size);
+synor_error_t synor_http_post(synor_http_client_t* client, const char* path,
+    const char* body, char** response, size_t* response_size);
+char* synor_strdup(const char* s);
+char* synor_url_encode(const char* s);
+
+/* Internal bridge structure */
+struct synor_bridge {
+    synor_http_client_t* http;
+    bool closed;
+    bool debug;
+};
+
+static const char* chain_id_to_string(synor_chain_id_t id) {
+    switch (id) {
+        case SYNOR_CHAIN_SYNOR: return "synor";
+        case SYNOR_CHAIN_ETHEREUM: return "ethereum";
+        case SYNOR_CHAIN_POLYGON: return "polygon";
+        case SYNOR_CHAIN_ARBITRUM: return "arbitrum";
+        case SYNOR_CHAIN_OPTIMISM: return "optimism";
+        case SYNOR_CHAIN_BSC: return "bsc";
+        case SYNOR_CHAIN_AVALANCHE: return "avalanche";
+        case SYNOR_CHAIN_SOLANA: return "solana";
+        case SYNOR_CHAIN_COSMOS: return "cosmos";
+        default: return "unknown";
+    }
+}
+
+synor_bridge_t* synor_bridge_create(const synor_bridge_config_t* config) {
+    if (!config || !config->api_key) {
+        return NULL;
+    }
+
+    synor_bridge_t* bridge = calloc(1, sizeof(synor_bridge_t));
+    if (!bridge) return NULL;
+
+    const char* endpoint = config->endpoint ?
+        config->endpoint : "https://bridge.synor.io/v1";
+    uint32_t timeout = config->timeout_ms > 0 ? config->timeout_ms : 60000;
+    uint32_t retries = config->retries > 0 ? config->retries : 3;
+
+    bridge->http = synor_http_client_create(
+        config->api_key, endpoint, timeout, retries, config->debug);
+
+    if (!bridge->http) {
+        free(bridge);
+        return NULL;
+    }
+
+    bridge->closed = false;
+    bridge->debug = config->debug;
+    return bridge;
+}
+
+void synor_bridge_destroy(synor_bridge_t* bridge) {
+    if (!bridge) return;
+    bridge->closed = true;
+    synor_http_client_destroy(bridge->http);
+    free(bridge);
+}
+
+bool synor_bridge_is_closed(synor_bridge_t* bridge) {
+    return bridge ? bridge->closed : true;
+}
+
+bool synor_bridge_health_check(synor_bridge_t* bridge) {
+    if (!bridge || bridge->closed) return false;
+
+    char* response = NULL;
+    size_t response_size = 0;
+
+    if (synor_http_get(bridge->http, "/health", &response, &response_size) != 0) {
+        return false;
+    }
+
+    bool healthy = response && strstr(response, "\"healthy\"") != NULL;
+    free(response);
+    return healthy;
+}
+
+/* ==================== Chain Operations ==================== */
+
+synor_bridge_error_t synor_bridge_get_supported_chains(synor_bridge_t* bridge,
+    synor_chain_list_t* result) {
+    (void)bridge; (void)result;
+    return SYNOR_BRIDGE_ERROR_UNKNOWN;
+}
+
+synor_bridge_error_t synor_bridge_get_chain(synor_bridge_t* bridge,
+    synor_chain_id_t chain_id, synor_chain_t* result) {
+    (void)bridge; (void)chain_id; (void)result;
+    return SYNOR_BRIDGE_ERROR_UNKNOWN;
+}
+
+bool synor_bridge_is_chain_supported(synor_bridge_t* bridge, synor_chain_id_t chain_id) {
+    synor_chain_t chain;
+    if (synor_bridge_get_chain(bridge, chain_id, &chain) != SYNOR_BRIDGE_OK) {
+        return false;
+    }
+    bool supported = chain.supported;
+    synor_chain_free(&chain);
+    return supported;
+}
+
+void synor_chain_free(synor_chain_t* chain) {
+    if (!chain) return;
+    free(chain->name);
+    free(chain->rpc_url);
+    free(chain->explorer_url);
+    free(chain->native_currency.name);
+    free(chain->native_currency.symbol);
+}
+
+void synor_chain_list_free(synor_chain_list_t* list) {
+    if (!list) return;
+    for (size_t i = 0; i < list->count; i++) {
+        synor_chain_free(&list->chains[i]);
+    }
+    free(list->chains);
+    list->chains = NULL;
+    list->count = 0;
+}
+
+/* ==================== Asset Operations ==================== */
+
+synor_bridge_error_t synor_bridge_get_supported_assets(synor_bridge_t* bridge,
+    synor_chain_id_t chain_id, synor_asset_list_t* result) {
+    (void)bridge; (void)chain_id; (void)result;
+    return SYNOR_BRIDGE_ERROR_UNKNOWN;
+}
+
+synor_bridge_error_t synor_bridge_get_asset(synor_bridge_t* bridge,
+    const char* asset_id, synor_asset_t* result) {
+    (void)bridge; (void)asset_id; (void)result;
+    return SYNOR_BRIDGE_ERROR_UNKNOWN;
+}
+
+synor_bridge_error_t synor_bridge_get_wrapped_asset(synor_bridge_t* bridge,
+    const char* original_asset_id, synor_chain_id_t target_chain,
+    synor_wrapped_asset_t* result) {
+    (void)bridge; (void)original_asset_id; (void)target_chain; (void)result;
+    return SYNOR_BRIDGE_ERROR_UNKNOWN;
+}
+
+void synor_asset_free(synor_asset_t* asset) {
+    if (!asset) return;
+    free(asset->id);
+    free(asset->symbol);
+    free(asset->name);
+    free(asset->contract_address);
+    free(asset->logo_url);
+}
+
+void synor_asset_list_free(synor_asset_list_t* list) {
+    if (!list) return;
+    for (size_t i = 0; i < list->count; i++) {
+        synor_asset_free(&list->assets[i]);
+    }
+    free(list->assets);
+    list->assets = NULL;
+    list->count = 0;
+}
+
+void synor_wrapped_asset_free(synor_wrapped_asset_t* asset) {
+    if (!asset) return;
+    synor_asset_free(&asset->original_asset);
+    synor_asset_free(&asset->wrapped_asset);
+    free(asset->bridge_contract);
+}
+
+/* ==================== Fee Operations ==================== */
+
+synor_bridge_error_t synor_bridge_estimate_fee(synor_bridge_t* bridge,
+    const char* asset, const char* amount,
+    synor_chain_id_t source_chain, synor_chain_id_t target_chain,
+    synor_fee_estimate_t* result) {
+    if (!bridge || bridge->closed) return SYNOR_BRIDGE_ERROR_CLIENT_CLOSED;
+    if (!asset || !amount || !result) return SYNOR_BRIDGE_ERROR_UNKNOWN;
+
+    char body[1024];
+    snprintf(body, sizeof(body),
+        "{\"asset\":\"%s\",\"amount\":\"%s\",\"sourceChain\":\"%s\",\"targetChain\":\"%s\"}",
+        asset, amount, chain_id_to_string(source_chain), chain_id_to_string(target_chain));
+
+    char* response = NULL;
+    size_t response_size = 0;
+
+    int err = synor_http_post(bridge->http, "/fees/estimate", body, &response, &response_size);
+    if (err != 0) {
+        free(response);
+        return SYNOR_BRIDGE_ERROR_HTTP;
+    }
+
+    /* TODO: Parse JSON response */
+    free(response);
+    return SYNOR_BRIDGE_ERROR_UNKNOWN;
+}
+
+synor_bridge_error_t synor_bridge_get_exchange_rate(synor_bridge_t* bridge,
+    const char* from_asset, const char* to_asset, synor_exchange_rate_t* result) {
+    (void)bridge; (void)from_asset; (void)to_asset; (void)result;
+    return SYNOR_BRIDGE_ERROR_UNKNOWN;
+}
+
+void synor_fee_estimate_free(synor_fee_estimate_t* fee) {
+    if (!fee) return;
+    free(fee->bridge_fee);
+    free(fee->gas_fee_source);
+    free(fee->gas_fee_target);
+    free(fee->total_fee);
+    synor_asset_free(&fee->fee_asset);
+    free(fee->exchange_rate);
+}
+
+void synor_exchange_rate_free(synor_exchange_rate_t* rate) {
+    if (!rate) return;
+    synor_asset_free(&rate->from_asset);
+    synor_asset_free(&rate->to_asset);
+    free(rate->rate);
+    free(rate->inverse_rate);
+    free(rate->source);
+}
+
+/* ==================== Lock-Mint Flow ==================== */
+
+synor_bridge_error_t synor_bridge_lock(synor_bridge_t* bridge,
+    const char* asset, const char* amount, synor_chain_id_t target_chain,
+    const synor_lock_options_t* options, synor_lock_receipt_t* result) {
+    (void)bridge; (void)asset; (void)amount; (void)target_chain;
+    (void)options; (void)result;
+    return SYNOR_BRIDGE_ERROR_UNKNOWN;
+}
+
+synor_bridge_error_t synor_bridge_get_lock_proof(synor_bridge_t* bridge,
+    const char* lock_receipt_id, synor_lock_proof_t* result) {
+    (void)bridge; (void)lock_receipt_id; (void)result;
+    return SYNOR_BRIDGE_ERROR_UNKNOWN;
+}
+
+synor_bridge_error_t synor_bridge_wait_for_lock_proof(synor_bridge_t* bridge,
+    const char* lock_receipt_id, uint32_t poll_interval_ms, uint32_t max_wait_ms,
+    synor_lock_proof_t* result) {
+    (void)bridge; (void)lock_receipt_id; (void)poll_interval_ms;
+    (void)max_wait_ms; (void)result;
+    return SYNOR_BRIDGE_ERROR_UNKNOWN;
+}
+
+synor_bridge_error_t synor_bridge_mint(synor_bridge_t* bridge,
+    const synor_lock_proof_t* proof, const char* target_address,
+    const synor_mint_options_t* options, synor_signed_tx_t* result) {
+    (void)bridge; (void)proof; (void)target_address; (void)options; (void)result;
+    return SYNOR_BRIDGE_ERROR_UNKNOWN;
+}
+
+void synor_lock_receipt_free(synor_lock_receipt_t* receipt) {
+    if (!receipt) return;
+    free(receipt->id);
+    free(receipt->tx_hash);
+    synor_asset_free(&receipt->asset);
+    free(receipt->amount);
+    free(receipt->sender);
+    free(receipt->recipient);
+}
+
+void synor_lock_proof_free(synor_lock_proof_t* proof) {
+    if (!proof) return;
+    synor_lock_receipt_free(&proof->lock_receipt);
+    for (size_t i = 0; i < proof->merkle_proof_count; i++) {
+        free(proof->merkle_proof[i]);
+    }
+    free(proof->merkle_proof);
+    free(proof->block_header);
+    for (size_t i = 0; i < proof->signature_count; i++) {
+        free(proof->signatures[i].validator);
+        free(proof->signatures[i].signature);
+    }
+    free(proof->signatures);
+}
+
+/* ==================== Burn-Unlock Flow ==================== */
+
+synor_bridge_error_t synor_bridge_burn(synor_bridge_t* bridge,
+    const char* wrapped_asset, const char* amount,
+    const synor_burn_options_t* options, synor_burn_receipt_t* result) {
+    (void)bridge; (void)wrapped_asset; (void)amount; (void)options; (void)result;
+    return SYNOR_BRIDGE_ERROR_UNKNOWN;
+}
+
+synor_bridge_error_t synor_bridge_get_burn_proof(synor_bridge_t* bridge,
+    const char* burn_receipt_id, synor_burn_proof_t* result) {
+    (void)bridge; (void)burn_receipt_id; (void)result;
+    return SYNOR_BRIDGE_ERROR_UNKNOWN;
+}
+
+synor_bridge_error_t synor_bridge_wait_for_burn_proof(synor_bridge_t* bridge,
+    const char* burn_receipt_id, uint32_t poll_interval_ms, uint32_t max_wait_ms,
+    synor_burn_proof_t* result) {
+    (void)bridge; (void)burn_receipt_id; (void)poll_interval_ms;
+    (void)max_wait_ms; (void)result;
+    return SYNOR_BRIDGE_ERROR_UNKNOWN;
+}
+
+synor_bridge_error_t synor_bridge_unlock(synor_bridge_t* bridge,
+    const synor_burn_proof_t* proof, const synor_unlock_options_t* options,
+    synor_signed_tx_t* result) {
+    (void)bridge; (void)proof; (void)options; (void)result;
+    return SYNOR_BRIDGE_ERROR_UNKNOWN;
+}
+
+void synor_burn_receipt_free(synor_burn_receipt_t* receipt) {
+    if (!receipt) return;
+    free(receipt->id);
+    free(receipt->tx_hash);
+    synor_asset_free(&receipt->wrapped_asset);
+    synor_asset_free(&receipt->original_asset);
+    free(receipt->amount);
+    free(receipt->sender);
+    free(receipt->recipient);
+}
+
+void synor_burn_proof_free(synor_burn_proof_t* proof) {
+    if (!proof) return;
+    synor_burn_receipt_free(&proof->burn_receipt);
+    for (size_t i = 0; i < proof->merkle_proof_count; i++) {
+        free(proof->merkle_proof[i]);
+    }
+    free(proof->merkle_proof);
+    free(proof->block_header);
+    for (size_t i = 0; i < proof->signature_count; i++) {
+        free(proof->signatures[i].validator);
+        free(proof->signatures[i].signature);
+    }
+    free(proof->signatures);
+}
+
+/* ==================== Transfer Operations ==================== */
+
+synor_bridge_error_t synor_bridge_get_transfer(synor_bridge_t* bridge,
+    const char* transfer_id, synor_transfer_t* result) {
+    (void)bridge; (void)transfer_id; (void)result;
+    return SYNOR_BRIDGE_ERROR_UNKNOWN;
+}
+
+synor_bridge_error_t synor_bridge_get_transfer_status(synor_bridge_t* bridge,
+    const char* transfer_id, synor_transfer_status_t* status) {
+    synor_transfer_t transfer;
+    synor_bridge_error_t err = synor_bridge_get_transfer(bridge, transfer_id, &transfer);
+    if (err != SYNOR_BRIDGE_OK) return err;
+    *status = transfer.status;
+    synor_transfer_free(&transfer);
+    return SYNOR_BRIDGE_OK;
+}
+
+synor_bridge_error_t synor_bridge_list_transfers(synor_bridge_t* bridge,
+    const synor_transfer_filter_t* filter, synor_transfer_list_t* result) {
+    (void)bridge; (void)filter; (void)result;
+    return SYNOR_BRIDGE_ERROR_UNKNOWN;
+}
+
+synor_bridge_error_t synor_bridge_wait_for_transfer(synor_bridge_t* bridge,
+    const char* transfer_id, uint32_t poll_interval_ms, uint32_t max_wait_ms,
+    synor_transfer_t* result) {
+    (void)bridge; (void)transfer_id; (void)poll_interval_ms;
+    (void)max_wait_ms; (void)result;
+    return SYNOR_BRIDGE_ERROR_UNKNOWN;
+}
+
+void synor_transfer_free(synor_transfer_t* transfer) {
+    if (!transfer) return;
+    free(transfer->id);
+    synor_asset_free(&transfer->asset);
+    free(transfer->amount);
+    free(transfer->sender);
+    free(transfer->recipient);
+    free(transfer->source_tx_hash);
+    free(transfer->target_tx_hash);
+    free(transfer->fee);
+    synor_asset_free(&transfer->fee_asset);
+    free(transfer->error_message);
+}
+
+void synor_transfer_list_free(synor_transfer_list_t* list) {
+    if (!list) return;
+    for (size_t i = 0; i < list->count; i++) {
+        synor_transfer_free(&list->transfers[i]);
+    }
+    free(list->transfers);
+    list->transfers = NULL;
+    list->count = 0;
+}
+
+void synor_signed_tx_free(synor_signed_tx_t* tx) {
+    if (!tx) return;
+    free(tx->tx_hash);
+    free(tx->from);
+    free(tx->to);
+    free(tx->value);
+    free(tx->data);
+    free(tx->gas_limit);
+    free(tx->gas_price);
+    free(tx->max_fee_per_gas);
+    free(tx->max_priority_fee_per_gas);
+    free(tx->signature);
+}
+
+/* ==================== Convenience Functions ==================== */
+
+synor_bridge_error_t synor_bridge_bridge_to(synor_bridge_t* bridge,
+    const char* asset, const char* amount, synor_chain_id_t target_chain,
+    const char* target_address, const synor_lock_options_t* lock_options,
+    const synor_mint_options_t* mint_options, synor_transfer_t* result) {
+    (void)bridge; (void)asset; (void)amount; (void)target_chain;
+    (void)target_address; (void)lock_options; (void)mint_options; (void)result;
+    return SYNOR_BRIDGE_ERROR_UNKNOWN;
+}
+
+synor_bridge_error_t synor_bridge_bridge_back(synor_bridge_t* bridge,
+    const char* wrapped_asset, const char* amount,
+    const synor_burn_options_t* burn_options,
+    const synor_unlock_options_t* unlock_options, synor_transfer_t* result) {
+    (void)bridge; (void)wrapped_asset; (void)amount;
+    (void)burn_options; (void)unlock_options; (void)result;
+    return SYNOR_BRIDGE_ERROR_UNKNOWN;
+}
diff --git a/sdk/c/src/database/database.c b/sdk/c/src/database/database.c
new file mode 100644
index 0000000..685f9a4
--- /dev/null
+++ b/sdk/c/src/database/database.c
@@ -0,0 +1,303 @@
+/**
+ * @file database.c
+ * @brief Synor Database SDK implementation
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include "synor/database.h"
+
+/* Forward declarations from common.c */
+typedef struct synor_http_client synor_http_client_t;
+synor_http_client_t* synor_http_client_create(
+    const char* api_key, const char* endpoint,
+    uint32_t timeout_ms, uint32_t retries, bool debug);
+void synor_http_client_destroy(synor_http_client_t* client);
+synor_error_t synor_http_get(synor_http_client_t* client, const char* path,
+    char** response, size_t* response_size);
+synor_error_t synor_http_post(synor_http_client_t* client, const char* path,
+    const char* body, char** response, size_t* response_size);
+synor_error_t synor_http_put(synor_http_client_t* client, const char* path,
+    const char* body, char** response, size_t* response_size);
+synor_error_t synor_http_delete(synor_http_client_t* client, const char* path,
+    char** response, size_t* response_size);
+char* synor_strdup(const char* s);
+char* synor_url_encode(const char* s);
+
+/* Internal database structure */
+struct synor_database {
+    synor_http_client_t* http;
+    bool closed;
+};
+
+synor_database_t* synor_database_create(const synor_db_config_t* config) {
+    if (!config || !config->api_key) {
+        return NULL;
+    }
+
+    synor_database_t* db = calloc(1, sizeof(synor_database_t));
+    if (!db) return NULL;
+
+    const char* endpoint = config->endpoint ?
+        config->endpoint : "https://db.synor.io/v1";
+    uint32_t timeout = config->timeout_ms > 0 ? config->timeout_ms : 60000;
+    uint32_t retries = config->retries > 0 ? config->retries : 3;
+
+    db->http = synor_http_client_create(
+        config->api_key, endpoint, timeout, retries, config->debug);
+
+    if (!db->http) {
+        free(db);
+        return NULL;
+    }
+
+    db->closed = false;
+    return db;
+}
+
+void synor_database_destroy(synor_database_t* db) {
+    if (!db) return;
+    db->closed = true;
+    synor_http_client_destroy(db->http);
+    free(db);
+}
+
+bool synor_database_is_closed(synor_database_t* db) {
+    return db ? db->closed : true;
+}
+
+bool synor_database_health_check(synor_database_t* db) {
+    if (!db || db->closed) return false;
+
+    char* response = NULL;
+    size_t response_size = 0;
+
+    if (synor_http_get(db->http, "/health", &response, &response_size) != 0) {
+        return false;
+    }
+
+    bool healthy = response && strstr(response, "\"healthy\"") != NULL;
+    free(response);
+    return healthy;
+}
+
+/* ==================== Key-Value Operations ==================== */
+
+synor_db_error_t synor_kv_get(synor_database_t* db, const char* key, char** value) {
+    if (!db || db->closed) return SYNOR_DB_ERROR_CLIENT_CLOSED;
+    if (!key || !value) return SYNOR_DB_ERROR_UNKNOWN;
+
+    char* encoded_key = synor_url_encode(key);
+    if (!encoded_key) return SYNOR_DB_ERROR_MEMORY;
+
+    char path[512];
+    snprintf(path, sizeof(path), "/kv/%s", encoded_key);
+    free(encoded_key);
+
+    char* response = NULL;
+    size_t response_size = 0;
+
+    int err = synor_http_get(db->http, path, &response, &response_size);
+    if (err != 0) {
+        free(response);
+        return SYNOR_DB_ERROR_HTTP;
+    }
+
+    /* Parse JSON response to extract value - simplified */
+    *value = response;
+    return SYNOR_DB_OK;
+}
+
+synor_db_error_t synor_kv_set(synor_database_t* db, const char* key,
+    const char* value, int32_t ttl) {
+    if (!db || db->closed) return SYNOR_DB_ERROR_CLIENT_CLOSED;
+    if (!key || !value) return SYNOR_DB_ERROR_UNKNOWN;
+
+    char* encoded_key = synor_url_encode(key);
+    if (!encoded_key) return SYNOR_DB_ERROR_MEMORY;
+
+    char path[512];
+    snprintf(path, sizeof(path), "/kv/%s", encoded_key);
+    free(encoded_key);
+
+    char body[4096];
+    if (ttl > 0) {
+        snprintf(body, sizeof(body), "{\"key\":\"%s\",\"value\":%s,\"ttl\":%d}",
+            key, value, ttl);
+    } else {
+        snprintf(body, sizeof(body), "{\"key\":\"%s\",\"value\":%s}", key, value);
+    }
+
+    char* response = NULL;
+    size_t response_size = 0;
+
+    int err = synor_http_put(db->http, path, body, &response, &response_size);
+    free(response);
+
+    return err == 0 ? SYNOR_DB_OK : SYNOR_DB_ERROR_HTTP;
+}
+
+synor_db_error_t synor_kv_delete(synor_database_t* db, const char* key) {
+    if (!db || db->closed) return SYNOR_DB_ERROR_CLIENT_CLOSED;
+    if (!key) return SYNOR_DB_ERROR_UNKNOWN;
+
+    char* encoded_key = synor_url_encode(key);
+    if (!encoded_key) return SYNOR_DB_ERROR_MEMORY;
+
+    char path[512];
+    snprintf(path, sizeof(path), "/kv/%s", encoded_key);
+    free(encoded_key);
+
+    char* response = NULL;
+    size_t response_size = 0;
+
+    int err = synor_http_delete(db->http, path, &response, &response_size);
+    free(response);
+
+    return err == 0 ? SYNOR_DB_OK : SYNOR_DB_ERROR_HTTP;
+}
+
+synor_db_error_t synor_kv_list(synor_database_t* db, const char* prefix,
+    synor_kv_list_t* result) {
+    (void)db; (void)prefix; (void)result;
+    return SYNOR_DB_ERROR_UNKNOWN; /* TODO: Implement */
+}
+
+void synor_kv_list_free(synor_kv_list_t* list) {
+    if (!list) return;
+    for (size_t i = 0; i < list->count; i++) {
+        free(list->items[i].key);
+        free(list->items[i].value);
+    }
+    free(list->items);
+    list->items = NULL;
+    list->count = 0;
+}
+
+/* ==================== Document Operations ==================== */
+
+synor_db_error_t synor_doc_create(synor_database_t* db, const char* collection,
+    const char* document, char** id) {
+    if (!db || db->closed) return SYNOR_DB_ERROR_CLIENT_CLOSED;
+    if (!collection || !document || !id) return SYNOR_DB_ERROR_UNKNOWN;
+
+    char* encoded = synor_url_encode(collection);
+    if (!encoded) return SYNOR_DB_ERROR_MEMORY;
+
+    char path[512];
+    snprintf(path, sizeof(path), "/collections/%s/documents", encoded);
+    free(encoded);
+
+    char* response = NULL;
+    size_t response_size = 0;
+
+    int err = synor_http_post(db->http, path, document, &response, &response_size);
+    if (err != 0) {
+        free(response);
+        return SYNOR_DB_ERROR_HTTP;
+    }
+
+    /* Parse response to extract id - simplified */
+    *id = response;
+    return SYNOR_DB_OK;
+}
+
+synor_db_error_t synor_doc_get(synor_database_t* db, const char* collection,
+    const char* id, synor_document_t* result) {
+    (void)db; (void)collection; (void)id; (void)result;
+    return SYNOR_DB_ERROR_UNKNOWN; /* TODO: Implement */
+}
+
+synor_db_error_t synor_doc_update(synor_database_t* db, const char* collection,
+    const char* id, const char* update) {
+    (void)db; (void)collection; (void)id; (void)update;
+    return SYNOR_DB_ERROR_UNKNOWN; /* TODO: Implement */
+}
+
+synor_db_error_t synor_doc_delete(synor_database_t* db, const char* collection,
+    const char* id) {
+    (void)db; (void)collection; (void)id;
+    return SYNOR_DB_ERROR_UNKNOWN; /* TODO: Implement */
+}
+
+synor_db_error_t synor_doc_query(synor_database_t* db, const char* collection,
+    const synor_document_query_t* query, synor_document_list_t* result) {
+    (void)db; (void)collection; (void)query; (void)result;
+    return SYNOR_DB_ERROR_UNKNOWN; /* TODO: Implement */
+}
+
+void synor_document_free(synor_document_t* doc) {
+    if (!doc) return;
+    free(doc->id);
+    free(doc->collection);
+    free(doc->data);
+    doc->id = NULL;
+    doc->collection = NULL;
+    doc->data = NULL;
+}
+
+void synor_document_list_free(synor_document_list_t* list) {
+    if (!list) return;
+    for (size_t i = 0; i < list->count; i++) {
+        synor_document_free(&list->documents[i]);
+    }
+    free(list->documents);
+    list->documents = NULL;
+    list->count = 0;
+}
+
+/* ==================== Vector Operations ==================== */
+
+synor_db_error_t synor_vector_upsert(synor_database_t* db, const char* collection,
+    const synor_vector_entry_t* vectors, size_t count) {
+    (void)db; (void)collection; (void)vectors; (void)count;
+    return SYNOR_DB_ERROR_UNKNOWN; /* TODO: Implement */
+}
+
+synor_db_error_t synor_vector_search(synor_database_t* db, const char* collection,
+    const double* vector, size_t vector_size, int32_t k,
+    synor_search_result_list_t* result) {
+    (void)db; (void)collection; (void)vector; (void)vector_size; (void)k; (void)result;
+    return SYNOR_DB_ERROR_UNKNOWN; /* TODO: Implement */
+}
+
+synor_db_error_t synor_vector_delete(synor_database_t* db, const char* collection,
+    const char** ids, size_t count) {
+    (void)db; (void)collection; (void)ids; (void)count;
+    return SYNOR_DB_ERROR_UNKNOWN; /* TODO: Implement */
+}
+
+void synor_search_result_list_free(synor_search_result_list_t* list) {
+    if (!list) return;
+    for (size_t i = 0; i < list->count; i++) {
+        free(list->results[i].id);
+        free(list->results[i].vector);
+        free(list->results[i].metadata);
+    }
+    free(list->results);
+    list->results = NULL;
+    list->count = 0;
+}
+
+/* ==================== Time Series Operations ==================== */
+
+synor_db_error_t synor_ts_write(synor_database_t* db, const char* series,
+    const synor_data_point_t* points, size_t count) {
+    (void)db; (void)series; (void)points; (void)count;
+    return SYNOR_DB_ERROR_UNKNOWN; /* TODO: Implement */
+}
+
+synor_db_error_t synor_ts_query(synor_database_t* db, const char* series,
+    const synor_time_range_t* range, const synor_aggregation_t* aggregation,
+    synor_data_point_list_t* result) {
+    (void)db; (void)series; (void)range; (void)aggregation; (void)result;
+    return SYNOR_DB_ERROR_UNKNOWN; /* TODO: Implement */
+}
+
+void synor_data_point_list_free(synor_data_point_list_t* list) {
+    if (!list) return;
+    free(list->points);
+    list->points = NULL;
+    list->count = 0;
+}
diff --git a/sdk/c/src/hosting/hosting.c b/sdk/c/src/hosting/hosting.c
new file mode 100644
index 0000000..81bcbe8
--- /dev/null
+++ b/sdk/c/src/hosting/hosting.c
@@ -0,0 +1,309 @@
+/**
+ * @file hosting.c
+ * @brief Synor Hosting SDK implementation
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include "synor/hosting.h"
+
+/* Forward declarations from common.c */
+typedef struct synor_http_client synor_http_client_t;
+synor_http_client_t* synor_http_client_create(
+    const char* api_key, const char* endpoint,
+    uint32_t timeout_ms, uint32_t retries, bool debug);
+void synor_http_client_destroy(synor_http_client_t* client);
+synor_error_t synor_http_get(synor_http_client_t* client, const char* path,
+    char** response, size_t* response_size);
+synor_error_t synor_http_post(synor_http_client_t* client, const char* path,
+    const char* body, char** response, size_t* response_size);
+synor_error_t synor_http_put(synor_http_client_t* client, const char* path,
+    const char* body, char** response, size_t* response_size);
+synor_error_t synor_http_delete(synor_http_client_t* client, const char* path,
+    char** response, size_t* response_size);
+char* synor_strdup(const char* s);
+char* synor_url_encode(const char* s);
+
+/* Internal hosting structure */
+struct synor_hosting {
+    synor_http_client_t* http;
+    bool closed;
+};
+
+synor_hosting_t* synor_hosting_create(const synor_hosting_config_t* config) {
+    if (!config || !config->api_key) {
+        return NULL;
+    }
+
+    synor_hosting_t* hosting = calloc(1, sizeof(synor_hosting_t));
+    if (!hosting) return NULL;
+
+    const char* endpoint = config->endpoint ?
+        config->endpoint : "https://hosting.synor.io/v1";
+    uint32_t timeout = config->timeout_ms > 0 ? config->timeout_ms : 60000;
+    uint32_t retries = config->retries > 0 ? config->retries : 3;
+
+    hosting->http = synor_http_client_create(
+        config->api_key, endpoint, timeout, retries, config->debug);
+
+    if (!hosting->http) {
+        free(hosting);
+        return NULL;
+    }
+
+    hosting->closed = false;
+    return hosting;
+}
+
+void synor_hosting_destroy(synor_hosting_t* hosting) {
+    if (!hosting) return;
+    hosting->closed = true;
+    synor_http_client_destroy(hosting->http);
+    free(hosting);
+}
+
+bool synor_hosting_is_closed(synor_hosting_t* hosting) {
+    return hosting ? hosting->closed : true;
+}
+
+bool synor_hosting_health_check(synor_hosting_t* hosting) {
+    if (!hosting || hosting->closed) return false;
+
+    char* response = NULL;
+    size_t response_size = 0;
+
+    if (synor_http_get(hosting->http, "/health", &response, &response_size) != 0) {
+        return false;
+    }
+
+    bool healthy = response && strstr(response, "\"healthy\"") != NULL;
+    free(response);
+    return healthy;
+}
+
+/* ==================== Domain Operations ==================== */
+
+synor_hosting_error_t synor_hosting_check_availability(synor_hosting_t* hosting,
+    const char* name, synor_domain_availability_t* result) {
+    (void)hosting; (void)name; (void)result;
+    return SYNOR_HOSTING_ERROR_UNKNOWN; /* TODO: Implement */
+}
+
+synor_hosting_error_t synor_hosting_register_domain(synor_hosting_t* hosting,
+    const char* name, const synor_register_domain_options_t* options,
+    synor_domain_t* result) {
+    (void)hosting; (void)name; (void)options; (void)result;
+    return SYNOR_HOSTING_ERROR_UNKNOWN; /* TODO: Implement */
+}
+
+synor_hosting_error_t synor_hosting_get_domain(synor_hosting_t* hosting,
+    const char* name, synor_domain_t* result) {
+    (void)hosting; (void)name; (void)result;
+    return SYNOR_HOSTING_ERROR_UNKNOWN; /* TODO: Implement */
+}
+
+synor_hosting_error_t synor_hosting_list_domains(synor_hosting_t* hosting,
+    synor_domain_list_t* result) {
+    (void)hosting; (void)result;
+    return SYNOR_HOSTING_ERROR_UNKNOWN; /* TODO: Implement */
+}
+
+synor_hosting_error_t synor_hosting_resolve_domain(synor_hosting_t* hosting,
+    const char* name, synor_domain_record_t* result) {
+    (void)hosting; (void)name; (void)result;
+    return SYNOR_HOSTING_ERROR_UNKNOWN; /* TODO: Implement */
+}
+
+synor_hosting_error_t synor_hosting_renew_domain(synor_hosting_t* hosting,
+    const char* name, int32_t years, synor_domain_t* result) {
+    (void)hosting; (void)name; (void)years; (void)result;
+    return SYNOR_HOSTING_ERROR_UNKNOWN; /* TODO: Implement */
+}
+
+void synor_domain_free(synor_domain_t* domain) {
+    if (!domain) return;
+    free(domain->name);
+    free(domain->owner);
+    if (domain->records) {
+        synor_domain_record_free(domain->records);
+        free(domain->records);
+    }
+}
+
+void synor_domain_list_free(synor_domain_list_t* list) {
+    if (!list) return;
+    for (size_t i = 0; i < list->count; i++) {
+        synor_domain_free(&list->domains[i]);
+    }
+    free(list->domains);
+    list->domains = NULL;
+    list->count = 0;
+}
+
+void synor_domain_record_free(synor_domain_record_t* record) {
+    if (!record) return;
+    free(record->cid);
+    for (size_t i = 0; i < record->ipv4_count; i++) free(record->ipv4[i]);
+    free(record->ipv4);
+    for (size_t i = 0; i < record->ipv6_count; i++) free(record->ipv6[i]);
+    free(record->ipv6);
+    free(record->cname);
+    for (size_t i = 0; i < record->txt_count; i++) free(record->txt[i]);
+    free(record->txt);
+}
+
+void synor_domain_availability_free(synor_domain_availability_t* avail) {
+    if (!avail) return;
+    free(avail->name);
+}
+
+/* ==================== DNS Operations ==================== */
+
+synor_hosting_error_t synor_hosting_get_dns_zone(synor_hosting_t* hosting,
+    const char* domain, synor_dns_zone_t* result) {
+    (void)hosting; (void)domain; (void)result;
+    return SYNOR_HOSTING_ERROR_UNKNOWN;
+}
+
+synor_hosting_error_t synor_hosting_set_dns_records(synor_hosting_t* hosting,
+    const char* domain, const synor_dns_record_t* records, size_t count,
+    synor_dns_zone_t* result) {
+    (void)hosting; (void)domain; (void)records; (void)count; (void)result;
+    return SYNOR_HOSTING_ERROR_UNKNOWN;
+}
+
+synor_hosting_error_t synor_hosting_add_dns_record(synor_hosting_t* hosting,
+    const char* domain, const synor_dns_record_t* record, synor_dns_zone_t* result) {
+    (void)hosting; (void)domain; (void)record; (void)result;
+    return SYNOR_HOSTING_ERROR_UNKNOWN;
+}
+
+synor_hosting_error_t synor_hosting_delete_dns_record(synor_hosting_t* hosting,
+    const char* domain, const char* record_type, const char* name,
+    synor_dns_zone_t* result) {
+    (void)hosting; (void)domain; (void)record_type; (void)name; (void)result;
+    return SYNOR_HOSTING_ERROR_UNKNOWN;
+}
+
+void synor_dns_zone_free(synor_dns_zone_t* zone) {
+    if (!zone) return;
+    free(zone->domain);
+    for (size_t i = 0; i < zone->record_count; i++) {
+        free(zone->records[i].name);
+        free(zone->records[i].value);
+    }
+    free(zone->records);
+}
+
+/* ==================== Deployment Operations ==================== */
+
+synor_hosting_error_t synor_hosting_deploy(synor_hosting_t* hosting,
+    const char* cid, const synor_deploy_options_t* options,
+    synor_deployment_t* result) {
+    (void)hosting; (void)cid; (void)options; (void)result;
+    return SYNOR_HOSTING_ERROR_UNKNOWN;
+}
+
+synor_hosting_error_t synor_hosting_get_deployment(synor_hosting_t* hosting,
+    const char* id, synor_deployment_t* result) {
+    (void)hosting; (void)id; (void)result;
+    return SYNOR_HOSTING_ERROR_UNKNOWN;
+}
+
+synor_hosting_error_t synor_hosting_list_deployments(synor_hosting_t* hosting,
+    const char* domain, synor_deployment_list_t* result) {
+    (void)hosting; (void)domain; (void)result;
+    return SYNOR_HOSTING_ERROR_UNKNOWN;
+}
+
+synor_hosting_error_t synor_hosting_rollback(synor_hosting_t* hosting,
+    const char* domain, const char* deployment_id, synor_deployment_t* result) {
+    (void)hosting; (void)domain; (void)deployment_id; (void)result;
+    return SYNOR_HOSTING_ERROR_UNKNOWN;
+}
+
+synor_hosting_error_t synor_hosting_delete_deployment(synor_hosting_t* hosting,
+    const char* id) {
+    (void)hosting; (void)id;
+    return SYNOR_HOSTING_ERROR_UNKNOWN;
+}
+
+void synor_deployment_free(synor_deployment_t* deployment) {
+    if (!deployment) return;
+    free(deployment->id);
+    free(deployment->domain);
+    free(deployment->cid);
+    free(deployment->url);
+    free(deployment->build_logs);
+    free(deployment->error_message);
+}
+
+void synor_deployment_list_free(synor_deployment_list_t* list) {
+    if (!list) return;
+    for (size_t i = 0; i < list->count; i++) {
+        synor_deployment_free(&list->deployments[i]);
+    }
+    free(list->deployments);
+    list->deployments = NULL;
+    list->count = 0;
+}
+
+/* ==================== SSL Operations ==================== */
+
+synor_hosting_error_t synor_hosting_provision_ssl(synor_hosting_t* hosting,
+    const char* domain, const synor_provision_ssl_options_t* options,
+    synor_certificate_t* result) {
+    (void)hosting; (void)domain; (void)options; (void)result;
+    return SYNOR_HOSTING_ERROR_UNKNOWN;
+}
+
+synor_hosting_error_t synor_hosting_get_certificate(synor_hosting_t* hosting,
+    const char* domain, synor_certificate_t* result) {
+    (void)hosting; (void)domain; (void)result;
+    return SYNOR_HOSTING_ERROR_UNKNOWN;
+}
+
+synor_hosting_error_t synor_hosting_renew_certificate(synor_hosting_t* hosting,
+    const char* domain, synor_certificate_t* result) {
+    (void)hosting; (void)domain; (void)result;
+    return SYNOR_HOSTING_ERROR_UNKNOWN;
+}
+
+synor_hosting_error_t synor_hosting_delete_certificate(synor_hosting_t* hosting,
+    const char* domain) {
+    (void)hosting; (void)domain;
+    return SYNOR_HOSTING_ERROR_UNKNOWN;
+}
+
+void synor_certificate_free(synor_certificate_t* cert) {
+    if (!cert) return;
+    free(cert->domain);
+    free(cert->issuer);
+    free(cert->fingerprint);
+}
+
+/* ==================== Analytics Operations ==================== */
+
+synor_hosting_error_t synor_hosting_get_analytics(synor_hosting_t* hosting,
+    const char* domain, const synor_analytics_options_t* options,
+    synor_analytics_data_t* result) {
+    (void)hosting; (void)domain; (void)options; (void)result;
+    return SYNOR_HOSTING_ERROR_UNKNOWN;
+}
+
+synor_hosting_error_t synor_hosting_purge_cache(synor_hosting_t* hosting,
+    const char* domain, const char** paths, size_t path_count, int64_t* purged) {
+    (void)hosting; (void)domain; (void)paths; (void)path_count; (void)purged;
+    return SYNOR_HOSTING_ERROR_UNKNOWN;
+}
+
+void synor_analytics_data_free(synor_analytics_data_t* data) {
+    if (!data) return;
+    free(data->domain);
+    free(data->period);
+    for (size_t i = 0; i < data->top_pages_count; i++) {
+        free(data->top_pages[i].path);
+    }
+    free(data->top_pages);
+}
diff --git a/sdk/cpp/include/synor/bridge.hpp b/sdk/cpp/include/synor/bridge.hpp
new file mode 100644
index 0000000..5d79869
--- /dev/null
+++ b/sdk/cpp/include/synor/bridge.hpp
@@ -0,0 +1,340 @@
+/**
+ * @file bridge.hpp
+ * @brief Synor Bridge SDK for C++
+ *
+ * Modern C++17 SDK for cross-chain asset transfers with lock-mint and burn-unlock patterns.
+ */
+
+#pragma once
+
+#include <string>
+#include <vector>
+#include <optional>
+#include <future>
+#include <memory>
+#include <cstdint>
+#include <chrono>
+#include "wallet.hpp"  // For SynorException
+
+namespace synor {
+namespace bridge {
+
+/// Chain identifier
+enum class ChainId {
+    Synor,
+    Ethereum,
+    Polygon,
+    Arbitrum,
+    Optimism,
+    Bsc,
+    Avalanche,
+    Solana,
+    Cosmos
+};
+
+/// Asset type
+enum class AssetType {
+    Native,
+    Erc20,
+    Erc721,
+    Erc1155
+};
+
+/// Transfer status
+enum class TransferStatus {
+    Pending,
+    Locked,
+    Confirming,
+    Minting,
+    Completed,
+    Failed,
+    Refunded
+};
+
+/// Transfer direction
+enum class TransferDirection {
+    LockMint,
+    BurnUnlock
+};
+
+/// Bridge configuration
+struct Config {
+    std::string api_key;
+    std::string endpoint = "https://bridge.synor.io/v1";
+    uint32_t timeout_ms = 60000;
+    uint32_t retries = 3;
+    bool debug = false;
+};
+
+/// Native currency
+struct NativeCurrency {
+    std::string name;
+    std::string symbol;
+    int32_t decimals;
+};
+
+/// A blockchain network
+struct Chain {
+    ChainId id;
+    std::string name;
+    int64_t chain_id;
+    std::string rpc_url;
+    std::string explorer_url;
+    NativeCurrency native_currency;
+    int32_t confirmations;
+    int32_t estimated_block_time;
+    bool supported;
+};
+
+/// An asset
+struct Asset {
+    std::string id;
+    std::string symbol;
+    std::string name;
+    AssetType type;
+    ChainId chain;
+    std::optional<std::string> contract_address;
+    int32_t decimals;
+    std::optional<std::string> logo_url;
+    bool verified = false;
+};
+
+/// A wrapped asset
+struct WrappedAsset {
+    Asset original_asset;
+    Asset wrapped_asset;
+    ChainId chain;
+    std::string bridge_contract;
+};
+
+/// Validator signature
+struct ValidatorSignature {
+    std::string validator;
+    std::string signature;
+    int64_t timestamp;
+};
+
+/// Lock receipt
+struct LockReceipt {
+    std::string id;
+    std::string tx_hash;
+    ChainId source_chain;
+    ChainId target_chain;
+    Asset asset;
+    std::string amount;
+    std::string sender;
+    std::string recipient;
+    int64_t lock_timestamp;
+    int32_t confirmations;
+    int32_t required_confirmations;
+};
+
+/// Lock proof
+struct LockProof {
+    LockReceipt lock_receipt;
+    std::vector<std::string> merkle_proof;
+    std::string block_header;
+    std::vector<ValidatorSignature> signatures;
+};
+
+/// Burn receipt
+struct BurnReceipt {
+    std::string id;
+    std::string tx_hash;
+    ChainId source_chain;
+    ChainId target_chain;
+    Asset wrapped_asset;
+    Asset original_asset;
+    std::string amount;
+    std::string sender;
+    std::string recipient;
+    int64_t burn_timestamp;
+    int32_t confirmations;
+    int32_t required_confirmations;
+};
+
+/// Burn proof
+struct BurnProof {
+    BurnReceipt burn_receipt;
+    std::vector<std::string> merkle_proof;
+    std::string block_header;
+    std::vector<ValidatorSignature> signatures;
+};
+
+/// A transfer
+struct Transfer {
+    std::string id;
+    TransferDirection direction;
+    TransferStatus status;
+    ChainId source_chain;
+    ChainId target_chain;
+    Asset asset;
+    std::string amount;
+    std::string sender;
+    std::string recipient;
+    std::optional<std::string> source_tx_hash;
+    std::optional<std::string> target_tx_hash;
+    std::string fee;
+    Asset fee_asset;
+    int64_t created_at;
+    int64_t updated_at;
+    std::optional<int64_t> completed_at;
+    std::optional<std::string> error_message;
+};
+
+/// Transfer filter
+struct TransferFilter {
+    std::optional<TransferStatus> status;
+    std::optional<ChainId> source_chain;
+    std::optional<ChainId> target_chain;
+    std::optional<std::string> asset;
+    std::optional<std::string> sender;
+    std::optional<std::string> recipient;
+    std::optional<int32_t> limit;
+    std::optional<int32_t> offset;
+};
+
+/// Fee estimate
+struct FeeEstimate {
+    std::string bridge_fee;
+    std::string gas_fee_source;
+    std::string gas_fee_target;
+    std::string total_fee;
+    Asset fee_asset;
+    int32_t estimated_time;
+    std::optional<std::string> exchange_rate;
+};
+
+/// Exchange rate
+struct ExchangeRate {
+    Asset from_asset;
+    Asset to_asset;
+    std::string rate;
+    std::string inverse_rate;
+    int64_t last_updated;
+    std::string source;
+};
+
+/// Signed transaction
+struct SignedTransaction {
+    std::string tx_hash;
+    ChainId chain;
+    std::string from;
+    std::string to;
+    std::string value;
+    std::string data;
+    std::string gas_limit;
+    std::optional<std::string> gas_price;
+    std::optional<std::string> max_fee_per_gas;
+    std::optional<std::string> max_priority_fee_per_gas;
+    int32_t nonce;
+    std::string signature;
+};
+
+/// Lock options
+struct LockOptions {
+    std::optional<std::string> recipient;
+    std::optional<int64_t> deadline;
+    std::optional<double> slippage;
+};
+
+/// Mint options
+struct MintOptions {
+    std::optional<std::string> gas_limit;
+    std::optional<std::string> max_fee_per_gas;
+    std::optional<std::string> max_priority_fee_per_gas;
+};
+
+/// Burn options
+struct BurnOptions {
+    std::optional<std::string> recipient;
+    std::optional<int64_t> deadline;
+};
+
+/// Unlock options
+struct UnlockOptions {
+    std::optional<std::string> gas_limit;
+    std::optional<std::string> gas_price;
+};
+
+// Forward declaration
+class SynorBridgeImpl;
+
+/// Synor Bridge client
+class SynorBridge {
+public:
+    explicit SynorBridge(const Config& config);
+    ~SynorBridge();
+
+    SynorBridge(const SynorBridge&) = delete;
+    SynorBridge& operator=(const SynorBridge&) = delete;
+    SynorBridge(SynorBridge&&) noexcept;
+    SynorBridge& operator=(SynorBridge&&) noexcept;
+
+    // Chain operations
+    std::future<std::vector<Chain>> get_supported_chains();
+    std::future<Chain> get_chain(ChainId chain_id);
+    std::future<bool> is_chain_supported(ChainId chain_id);
+
+    // Asset operations
+    std::future<std::vector<Asset>> get_supported_assets(ChainId chain_id);
+    std::future<Asset> get_asset(const std::string& asset_id);
+    std::future<WrappedAsset> get_wrapped_asset(const std::string& original_asset_id,
+                                                 ChainId target_chain);
+
+    // Fee & rate operations
+    std::future<FeeEstimate> estimate_fee(const std::string& asset, const std::string& amount,
+                                          ChainId source_chain, ChainId target_chain);
+    std::future<ExchangeRate> get_exchange_rate(const std::string& from_asset,
+                                                 const std::string& to_asset);
+
+    // Lock-Mint flow
+    std::future<LockReceipt> lock(const std::string& asset, const std::string& amount,
+                                   ChainId target_chain, const LockOptions& options = {});
+    std::future<LockProof> get_lock_proof(const std::string& lock_receipt_id);
+    std::future<LockProof> wait_for_lock_proof(
+        const std::string& lock_receipt_id,
+        std::chrono::milliseconds poll_interval = std::chrono::seconds(5),
+        std::chrono::milliseconds max_wait = std::chrono::minutes(10));
+    std::future<SignedTransaction> mint(const LockProof& proof, const std::string& target_address,
+                                        const MintOptions& options = {});
+
+    // Burn-Unlock flow
+    std::future<BurnReceipt> burn(const std::string& wrapped_asset, const std::string& amount,
+                                   const BurnOptions& options = {});
+    std::future<BurnProof> get_burn_proof(const std::string& burn_receipt_id);
+    std::future<BurnProof> wait_for_burn_proof(
+        const std::string& burn_receipt_id,
+        std::chrono::milliseconds poll_interval = std::chrono::seconds(5),
+        std::chrono::milliseconds max_wait = std::chrono::minutes(10));
+    std::future<SignedTransaction> unlock(const BurnProof& proof, const UnlockOptions& options = {});
+
+    // Transfer management
+    std::future<Transfer> get_transfer(const std::string& transfer_id);
+    std::future<TransferStatus> get_transfer_status(const std::string& transfer_id);
+    std::future<std::vector<Transfer>> list_transfers(const TransferFilter& filter = {});
+    std::future<Transfer> wait_for_transfer(
+        const std::string& transfer_id,
+        std::chrono::milliseconds poll_interval = std::chrono::seconds(10),
+        std::chrono::milliseconds max_wait = std::chrono::minutes(30));
+
+    // Convenience methods
+    std::future<Transfer> bridge_to(const std::string& asset, const std::string& amount,
+                                    ChainId target_chain, const std::string& target_address,
+                                    const LockOptions& lock_options = {},
+                                    const MintOptions& mint_options = {});
+    std::future<Transfer> bridge_back(const std::string& wrapped_asset, const std::string& amount,
+                                      const BurnOptions& burn_options = {},
+                                      const UnlockOptions& unlock_options = {});
+
+    // Lifecycle
+    void close();
+    bool is_closed() const;
+    std::future<bool> health_check();
+
+private:
+    std::unique_ptr<SynorBridgeImpl> impl_;
+};
+
+}  // namespace bridge
+}  // namespace synor
diff --git a/sdk/cpp/include/synor/database.hpp b/sdk/cpp/include/synor/database.hpp
new file mode 100644
index 0000000..1ce916b
--- /dev/null
+++ b/sdk/cpp/include/synor/database.hpp
@@ -0,0 +1,194 @@
+/**
+ * @file database.hpp
+ * @brief Synor Database SDK for C++
+ *
+ * Modern C++17 SDK for multi-model database with Key-Value, Document, Vector, and Time Series stores.
+ */
+
+#pragma once
+
+#include <string>
+#include <vector>
+#include <optional>
+#include <future>
+#include <memory>
+#include <map>
+#include <cstdint>
+#include "wallet.hpp"  // For SynorException
+
+namespace synor {
+namespace database {
+
+/// Database configuration
+struct Config {
+    std::string api_key;
+    std::string endpoint = "https://db.synor.io/v1";
+    uint32_t timeout_ms = 60000;
+    uint32_t retries = 3;
+    bool debug = false;
+};
+
+/// A key-value entry
+struct KeyValue {
+    std::string key;
+    std::string value;  // JSON string
+    std::optional<int32_t> ttl;
+    std::optional<int64_t> created_at;
+    std::optional<int64_t> updated_at;
+};
+
+/// A document
+struct Document {
+    std::string id;
+    std::string collection;
+    std::map<std::string, std::string> data;  // JSON data
+    int64_t created_at;
+    int64_t updated_at;
+};
+
+/// Query for documents
+struct Query {
+    std::optional<std::string> filter;  // JSON
+    std::optional<std::string> sort;    // JSON
+    std::optional<int32_t> limit;
+    std::optional<int32_t> offset;
+    std::optional<std::vector<std::string>> projection;
+};
+
+/// A vector entry
+struct VectorEntry {
+    std::string id;
+    std::vector<double> vector;
+    std::optional<std::map<std::string, std::string>> metadata;
+};
+
+/// A search result
+struct SearchResult {
+    std::string id;
+    double score;
+    std::optional<std::vector<double>> vector;
+    std::optional<std::map<std::string, std::string>> metadata;
+};
+
+/// A time series data point
+struct DataPoint {
+    int64_t timestamp;
+    double value;
+    std::optional<std::map<std::string, std::string>> tags;
+};
+
+/// Time range for queries
+struct TimeRange {
+    int64_t start;
+    int64_t end;
+};
+
+/// Aggregation settings
+struct Aggregation {
+    std::string function;  // avg, sum, min, max, count
+    std::string interval;  // 1m, 5m, 1h, 1d
+};
+
+// Forward declaration
+class SynorDatabaseImpl;
+
+/// Key-Value store interface
+class KeyValueStore {
+public:
+    explicit KeyValueStore(std::shared_ptr<SynorDatabaseImpl> impl);
+
+    std::future<std::optional<std::string>> get(const std::string& key);
+    std::future<void> set(const std::string& key, const std::string& value,
+                         std::optional<int32_t> ttl = std::nullopt);
+    std::future<void> remove(const std::string& key);
+    std::future<std::vector<KeyValue>> list(const std::string& prefix);
+
+private:
+    std::shared_ptr<SynorDatabaseImpl> impl_;
+};
+
+/// Document store interface
+class DocumentStore {
+public:
+    explicit DocumentStore(std::shared_ptr<SynorDatabaseImpl> impl);
+
+    std::future<std::string> create(const std::string& collection, const std::string& document);
+    std::future<Document> get(const std::string& collection, const std::string& id);
+    std::future<void> update(const std::string& collection, const std::string& id,
+                            const std::string& update);
+    std::future<void> remove(const std::string& collection, const std::string& id);
+    std::future<std::vector<Document>> query(const std::string& collection, const Query& query);
+
+private:
+    std::shared_ptr<SynorDatabaseImpl> impl_;
+};
+
+/// Vector store interface
+class VectorStore {
+public:
+    explicit VectorStore(std::shared_ptr<SynorDatabaseImpl> impl);
+
+    std::future<void> upsert(const std::string& collection, const std::vector<VectorEntry>& vectors);
+    std::future<std::vector<SearchResult>> search(const std::string& collection,
+                                                   const std::vector<double>& vector, int32_t k);
+    std::future<void> remove(const std::string& collection, const std::vector<std::string>& ids);
+
+private:
+    std::shared_ptr<SynorDatabaseImpl> impl_;
+};
+
+/// Time series store interface
+class TimeSeriesStore {
+public:
+    explicit TimeSeriesStore(std::shared_ptr<SynorDatabaseImpl> impl);
+
+    std::future<void> write(const std::string& series, const std::vector<DataPoint>& points);
+    std::future<std::vector<DataPoint>> query(const std::string& series, const TimeRange& range,
+                                              std::optional<Aggregation> aggregation = std::nullopt);
+
+private:
+    std::shared_ptr<SynorDatabaseImpl> impl_;
+};
+
+/// Synor Database client
+class SynorDatabase {
+public:
+    explicit SynorDatabase(const Config& config);
+    ~SynorDatabase();
+
+    SynorDatabase(const SynorDatabase&) = delete;
+    SynorDatabase& operator=(const SynorDatabase&) = delete;
+    SynorDatabase(SynorDatabase&&) noexcept;
+    SynorDatabase& operator=(SynorDatabase&&) noexcept;
+
+    /// Key-Value store operations
+    KeyValueStore& kv();
+
+    /// Document store operations
+    DocumentStore& documents();
+
+    /// Vector store operations
+    VectorStore& vectors();
+
+    /// Time series store operations
+    TimeSeriesStore& timeseries();
+
+    /// Close the client
+    void close();
+
+    /// Check if the client is closed
+    bool is_closed() const;
+
+    /// Perform a health check
+    std::future<bool> health_check();
+
+private:
+    std::shared_ptr<SynorDatabaseImpl> impl_;
+    std::unique_ptr<KeyValueStore> kv_;
+    std::unique_ptr<DocumentStore> documents_;
+    std::unique_ptr<VectorStore> vectors_;
+    std::unique_ptr<TimeSeriesStore> timeseries_;
+};
+
+}  // namespace database
+}  // namespace synor
diff --git a/sdk/cpp/include/synor/hosting.hpp b/sdk/cpp/include/synor/hosting.hpp
new file mode 100644
index 0000000..2b300cd
--- /dev/null
+++ b/sdk/cpp/include/synor/hosting.hpp
@@ -0,0 +1,271 @@
+/**
+ * @file hosting.hpp
+ * @brief Synor Hosting SDK for C++
+ *
+ * Modern C++17 SDK for decentralized web hosting with domain management, DNS, deployments, and SSL.
+ */
+
+#pragma once
+
+#include <string>
+#include <vector>
+#include <optional>
+#include <future>
+#include <memory>
+#include <map>
+#include <cstdint>
+#include "wallet.hpp"  // For SynorException
+
+namespace synor {
+namespace hosting {
+
+/// Domain status
+enum class DomainStatus {
+    Pending,
+    Active,
+    Expired,
+    Suspended
+};
+
+/// Deployment status
+enum class DeploymentStatus {
+    Pending,
+    Building,
+    Deploying,
+    Active,
+    Failed,
+    Inactive
+};
+
+/// Certificate status
+enum class CertificateStatus {
+    Pending,
+    Issued,
+    Expired,
+    Revoked
+};
+
+/// DNS record type
+enum class DnsRecordType {
+    A,
+    AAAA,
+    CNAME,
+    TXT,
+    MX,
+    NS,
+    SRV,
+    CAA
+};
+
+/// Hosting configuration
+struct Config {
+    std::string api_key;
+    std::string endpoint = "https://hosting.synor.io/v1";
+    uint32_t timeout_ms = 60000;
+    uint32_t retries = 3;
+    bool debug = false;
+};
+
+/// Domain record
+struct DomainRecord {
+    std::optional<std::string> cid;
+    std::optional<std::vector<std::string>> ipv4;
+    std::optional<std::vector<std::string>> ipv6;
+    std::optional<std::string> cname;
+    std::optional<std::vector<std::string>> txt;
+    std::optional<std::map<std::string, std::string>> metadata;
+};
+
+/// A domain
+struct Domain {
+    std::string name;
+    DomainStatus status;
+    std::string owner;
+    int64_t registered_at;
+    int64_t expires_at;
+    bool auto_renew;
+    std::optional<DomainRecord> records;
+};
+
+/// Domain availability
+struct DomainAvailability {
+    std::string name;
+    bool available;
+    std::optional<double> price;
+    bool premium = false;
+};
+
+/// Domain registration options
+struct RegisterDomainOptions {
+    std::optional<int32_t> years;
+    std::optional<bool> auto_renew;
+};
+
+/// DNS record
+struct DnsRecord {
+    DnsRecordType type;
+    std::string name;
+    std::string value;
+    int32_t ttl = 3600;
+    std::optional<int32_t> priority;
+};
+
+/// DNS zone
+struct DnsZone {
+    std::string domain;
+    std::vector<DnsRecord> records;
+    int64_t updated_at;
+};
+
+/// A deployment
+struct Deployment {
+    std::string id;
+    std::string domain;
+    std::string cid;
+    DeploymentStatus status;
+    std::string url;
+    int64_t created_at;
+    int64_t updated_at;
+    std::optional<std::string> build_logs;
+    std::optional<std::string> error_message;
+};
+
+/// Deploy options
+struct DeployOptions {
+    std::optional<std::string> domain;
+    std::optional<std::string> subdomain;
+    std::optional<bool> spa;
+    std::optional<bool> clean_urls;
+    std::optional<bool> trailing_slash;
+};
+
+/// SSL certificate
+struct Certificate {
+    std::string domain;
+    CertificateStatus status;
+    bool auto_renew;
+    std::string issuer;
+    std::optional<int64_t> issued_at;
+    std::optional<int64_t> expires_at;
+    std::optional<std::string> fingerprint;
+};
+
+/// SSL provisioning options
+struct ProvisionSslOptions {
+    std::optional<bool> include_www;
+    std::optional<bool> auto_renew;
+};
+
+/// Redirect rule
+struct RedirectRule {
+    std::string source;
+    std::string destination;
+    int32_t status_code = 301;
+    bool permanent = true;
+};
+
+/// Site configuration
+struct SiteConfig {
+    std::string domain;
+    std::optional<std::string> cid;
+    std::optional<std::map<std::string, std::string>> headers;
+    std::optional<std::vector<RedirectRule>> redirects;
+    std::optional<std::map<std::string, std::string>> error_pages;
+    bool spa = false;
+    bool clean_urls = true;
+    bool trailing_slash = false;
+};
+
+/// Page view stats
+struct PageView {
+    std::string path;
+    int64_t views;
+};
+
+/// Analytics data
+struct AnalyticsData {
+    std::string domain;
+    std::string period;
+    int64_t page_views;
+    int64_t unique_visitors;
+    int64_t bandwidth;
+    std::vector<PageView> top_pages;
+};
+
+/// Analytics options
+struct AnalyticsOptions {
+    std::optional<std::string> period;
+    std::optional<std::string> start;
+    std::optional<std::string> end;
+};
+
+// Forward declaration
+class SynorHostingImpl;
+
+/// Synor Hosting client
+class SynorHosting {
+public:
+    explicit SynorHosting(const Config& config);
+    ~SynorHosting();
+
+    SynorHosting(const SynorHosting&) = delete;
+    SynorHosting& operator=(const SynorHosting&) = delete;
+    SynorHosting(SynorHosting&&) noexcept;
+    SynorHosting& operator=(SynorHosting&&) noexcept;
+
+    // Domain operations
+    std::future<DomainAvailability> check_availability(const std::string& name);
+    std::future<Domain> register_domain(const std::string& name,
+                                        const RegisterDomainOptions& options = {});
+    std::future<Domain> get_domain(const std::string& name);
+    std::future<std::vector<Domain>> list_domains();
+    std::future<Domain> update_domain_record(const std::string& name, const DomainRecord& record);
+    std::future<DomainRecord> resolve_domain(const std::string& name);
+    std::future<Domain> renew_domain(const std::string& name, int32_t years);
+
+    // DNS operations
+    std::future<DnsZone> get_dns_zone(const std::string& domain);
+    std::future<DnsZone> set_dns_records(const std::string& domain,
+                                         const std::vector<DnsRecord>& records);
+    std::future<DnsZone> add_dns_record(const std::string& domain, const DnsRecord& record);
+    std::future<DnsZone> delete_dns_record(const std::string& domain,
+                                           const std::string& record_type,
+                                           const std::string& name);
+
+    // Deployment operations
+    std::future<Deployment> deploy(const std::string& cid, const DeployOptions& options = {});
+    std::future<Deployment> get_deployment(const std::string& id);
+    std::future<std::vector<Deployment>> list_deployments(
+        std::optional<std::string> domain = std::nullopt);
+    std::future<Deployment> rollback(const std::string& domain, const std::string& deployment_id);
+    std::future<void> delete_deployment(const std::string& id);
+
+    // SSL operations
+    std::future<Certificate> provision_ssl(const std::string& domain,
+                                           const ProvisionSslOptions& options = {});
+    std::future<Certificate> get_certificate(const std::string& domain);
+    std::future<Certificate> renew_certificate(const std::string& domain);
+    std::future<void> delete_certificate(const std::string& domain);
+
+    // Site configuration
+    std::future<SiteConfig> get_site_config(const std::string& domain);
+    std::future<SiteConfig> update_site_config(const std::string& domain,
+                                                const std::map<std::string, std::string>& config);
+    std::future<int64_t> purge_cache(const std::string& domain,
+                                     std::optional<std::vector<std::string>> paths = std::nullopt);
+
+    // Analytics
+    std::future<AnalyticsData> get_analytics(const std::string& domain,
+                                             const AnalyticsOptions& options = {});
+
+    // Lifecycle
+    void close();
+    bool is_closed() const;
+    std::future<bool> health_check();
+
+private:
+    std::unique_ptr<SynorHostingImpl> impl_;
+};
+
+}  // namespace hosting
+}  // namespace synor
diff --git a/sdk/csharp/Synor.Sdk/Bridge/SynorBridge.cs b/sdk/csharp/Synor.Sdk/Bridge/SynorBridge.cs
new file mode 100644
index 0000000..fb68afc
--- /dev/null
+++ b/sdk/csharp/Synor.Sdk/Bridge/SynorBridge.cs
@@ -0,0 +1,237 @@
+using System.Net.Http.Json;
+using System.Text.Json;
+
+namespace Synor.Sdk.Bridge;
+
+/// <summary>
+/// Synor Bridge SDK client for C#.
+/// Cross-chain asset transfers with lock-mint and burn-unlock patterns.
+/// </summary>
+public class SynorBridge : IDisposable
+{
+    private readonly BridgeConfig _config;
+    private readonly HttpClient _httpClient;
+    private readonly JsonSerializerOptions _jsonOptions;
+    private bool _disposed;
+    private static readonly HashSet<TransferStatus> FinalStatuses = new() { TransferStatus.Completed, TransferStatus.Failed, TransferStatus.Refunded };
+
+    public SynorBridge(BridgeConfig config)
+    {
+        _config = config;
+        _httpClient = new HttpClient { BaseAddress = new Uri(config.Endpoint), Timeout = config.Timeout };
+        _httpClient.DefaultRequestHeaders.Add("Authorization", $"Bearer {config.ApiKey}");
+        _httpClient.DefaultRequestHeaders.Add("X-SDK-Version", "csharp/0.1.0");
+        _jsonOptions = new JsonSerializerOptions { PropertyNamingPolicy = JsonNamingPolicy.SnakeCaseLower, PropertyNameCaseInsensitive = true };
+    }
+
+    // Chain Operations
+    public async Task<List<Chain>> GetSupportedChainsAsync(CancellationToken ct = default)
+    {
+        var r = await GetAsync<ChainsResponse>("/chains", ct);
+        return r.Chains ?? new List<Chain>();
+    }
+
+    public async Task<Chain> GetChainAsync(ChainId chainId, CancellationToken ct = default)
+        => await GetAsync<Chain>($"/chains/{chainId.ToString().ToLower()}", ct);
+
+    public async Task<bool> IsChainSupportedAsync(ChainId chainId, CancellationToken ct = default)
+    {
+        try { var c = await GetChainAsync(chainId, ct); return c.Supported; }
+        catch { return false; }
+    }
+
+    // Asset Operations
+    public async Task<List<Asset>> GetSupportedAssetsAsync(ChainId chainId, CancellationToken ct = default)
+    {
+        var r = await GetAsync<AssetsResponse>($"/chains/{chainId.ToString().ToLower()}/assets", ct);
+        return r.Assets ?? new List<Asset>();
+    }
+
+    public async Task<Asset> GetAssetAsync(string assetId, CancellationToken ct = default)
+        => await GetAsync<Asset>($"/assets/{Uri.EscapeDataString(assetId)}", ct);
+
+    public async Task<WrappedAsset> GetWrappedAssetAsync(string originalAssetId, ChainId targetChain, CancellationToken ct = default)
+        => await GetAsync<WrappedAsset>($"/assets/{Uri.EscapeDataString(originalAssetId)}/wrapped/{targetChain.ToString().ToLower()}", ct);
+
+    // Fee Operations
+    public async Task<FeeEstimate> EstimateFeeAsync(string asset, string amount, ChainId sourceChain, ChainId targetChain, CancellationToken ct = default)
+        => await PostAsync<FeeEstimate>("/fees/estimate", new { asset, amount, sourceChain = sourceChain.ToString().ToLower(), targetChain = targetChain.ToString().ToLower() }, ct);
+
+    public async Task<ExchangeRate> GetExchangeRateAsync(string fromAsset, string toAsset, CancellationToken ct = default)
+        => await GetAsync<ExchangeRate>($"/rates/{Uri.EscapeDataString(fromAsset)}/{Uri.EscapeDataString(toAsset)}", ct);
+
+    // Lock-Mint Flow
+    public async Task<LockReceipt> LockAsync(string asset, string amount, ChainId targetChain, LockOptions? options = null, CancellationToken ct = default)
+    {
+        var body = new Dictionary<string, object> { ["asset"] = asset, ["amount"] = amount, ["targetChain"] = targetChain.ToString().ToLower() };
+        if (options?.Recipient != null) body["recipient"] = options.Recipient;
+        if (options?.Deadline != null) body["deadline"] = options.Deadline;
+        if (options?.Slippage != null) body["slippage"] = options.Slippage;
+        return await PostAsync<LockReceipt>("/transfers/lock", body, ct);
+    }
+
+    public async Task<LockProof> GetLockProofAsync(string lockReceiptId, CancellationToken ct = default)
+        => await GetAsync<LockProof>($"/transfers/lock/{Uri.EscapeDataString(lockReceiptId)}/proof", ct);
+
+    public async Task<LockProof> WaitForLockProofAsync(string lockReceiptId, TimeSpan? pollInterval = null, TimeSpan? maxWait = null, CancellationToken ct = default)
+    {
+        var interval = pollInterval ?? TimeSpan.FromSeconds(5);
+        var deadline = DateTime.UtcNow + (maxWait ?? TimeSpan.FromMinutes(10));
+        while (DateTime.UtcNow < deadline)
+        {
+            try { return await GetLockProofAsync(lockReceiptId, ct); }
+            catch (BridgeException ex) when (ex.IsConfirmationsPending) { await Task.Delay(interval, ct); }
+        }
+        throw new BridgeException("Timeout waiting for lock proof", "CONFIRMATIONS_PENDING");
+    }
+
+    public async Task<SignedTransaction> MintAsync(LockProof proof, string targetAddress, MintOptions? options = null, CancellationToken ct = default)
+    {
+        var body = new Dictionary<string, object> { ["proof"] = proof, ["targetAddress"] = targetAddress };
+        if (options?.GasLimit != null) body["gasLimit"] = options.GasLimit;
+        if (options?.MaxFeePerGas != null) body["maxFeePerGas"] = options.MaxFeePerGas;
+        if (options?.MaxPriorityFeePerGas != null) body["maxPriorityFeePerGas"] = options.MaxPriorityFeePerGas;
+        return await PostAsync<SignedTransaction>("/transfers/mint", body, ct);
+    }
+
+    // Burn-Unlock Flow
+    public async Task<BurnReceipt> BurnAsync(string wrappedAsset, string amount, BurnOptions? options = null, CancellationToken ct = default)
+    {
+        var body = new Dictionary<string, object> { ["wrappedAsset"] = wrappedAsset, ["amount"] = amount };
+        if (options?.Recipient != null) body["recipient"] = options.Recipient;
+        if (options?.Deadline != null) body["deadline"] = options.Deadline;
+        return await PostAsync<BurnReceipt>("/transfers/burn", body, ct);
+    }
+
+    public async Task<BurnProof> GetBurnProofAsync(string burnReceiptId, CancellationToken ct = default)
+        => await GetAsync<BurnProof>($"/transfers/burn/{Uri.EscapeDataString(burnReceiptId)}/proof", ct);
+
+    public async Task<BurnProof> WaitForBurnProofAsync(string burnReceiptId, TimeSpan? pollInterval = null, TimeSpan? maxWait = null, CancellationToken ct = default)
+    {
+        var interval = pollInterval ?? TimeSpan.FromSeconds(5);
+        var deadline = DateTime.UtcNow + (maxWait ?? TimeSpan.FromMinutes(10));
+        while (DateTime.UtcNow < deadline)
+        {
+            try { return await GetBurnProofAsync(burnReceiptId, ct); }
+            catch (BridgeException ex) when (ex.IsConfirmationsPending) { await Task.Delay(interval, ct); }
+        }
+        throw new BridgeException("Timeout waiting for burn proof", "CONFIRMATIONS_PENDING");
+    }
+
+    public async Task<SignedTransaction> UnlockAsync(BurnProof proof, UnlockOptions? options = null, CancellationToken ct = default)
+    {
+        var body = new Dictionary<string, object> { ["proof"] = proof };
+        if (options?.GasLimit != null) body["gasLimit"] = options.GasLimit;
+        if (options?.GasPrice != null) body["gasPrice"] = options.GasPrice;
+        return await PostAsync<SignedTransaction>("/transfers/unlock", body, ct);
+    }
+
+    // Transfer Management
+    public async Task<Transfer> GetTransferAsync(string transferId, CancellationToken ct = default)
+        => await GetAsync<Transfer>($"/transfers/{Uri.EscapeDataString(transferId)}", ct);
+
+    public async Task<TransferStatus> GetTransferStatusAsync(string transferId, CancellationToken ct = default)
+    {
+        var t = await GetTransferAsync(transferId, ct);
+        return t.Status;
+    }
+
+    public async Task<List<Transfer>> ListTransfersAsync(TransferFilter? filter = null, CancellationToken ct = default)
+    {
+        var q = new List<string>();
+        if (filter?.Status != null) q.Add($"status={filter.Status.ToString()!.ToLower()}");
+        if (filter?.SourceChain != null) q.Add($"sourceChain={filter.SourceChain.ToString()!.ToLower()}");
+        if (filter?.TargetChain != null) q.Add($"targetChain={filter.TargetChain.ToString()!.ToLower()}");
+        if (filter?.Limit != null) q.Add($"limit={filter.Limit}");
+        if (filter?.Offset != null) q.Add($"offset={filter.Offset}");
+        var path = q.Count > 0 ? $"/transfers?{string.Join("&", q)}" : "/transfers";
+        var r = await GetAsync<TransfersResponse>(path, ct);
+        return r.Transfers ?? new List<Transfer>();
+    }
+
+    public async Task<Transfer> WaitForTransferAsync(string transferId, TimeSpan? pollInterval = null, TimeSpan? maxWait = null, CancellationToken ct = default)
+    {
+        var interval = pollInterval ?? TimeSpan.FromSeconds(10);
+        var deadline = DateTime.UtcNow + (maxWait ?? TimeSpan.FromMinutes(30));
+        while (DateTime.UtcNow < deadline)
+        {
+            var t = await GetTransferAsync(transferId, ct);
+            if (FinalStatuses.Contains(t.Status)) return t;
+            await Task.Delay(interval, ct);
+        }
+        throw new BridgeException("Timeout waiting for transfer completion");
+    }
+
+    // Convenience Methods
+    public async Task<Transfer> BridgeToAsync(string asset, string amount, ChainId targetChain, string targetAddress, LockOptions? lockOptions = null, MintOptions? mintOptions = null, CancellationToken ct = default)
+    {
+        var receipt = await LockAsync(asset, amount, targetChain, lockOptions, ct);
+        if (_config.Debug) Console.WriteLine($"Locked: {receipt.Id}");
+        var proof = await WaitForLockProofAsync(receipt.Id, ct: ct);
+        if (_config.Debug) Console.WriteLine($"Proof ready, minting on {targetChain}");
+        await MintAsync(proof, targetAddress, mintOptions, ct);
+        return await WaitForTransferAsync(receipt.Id, ct: ct);
+    }
+
+    public async Task<Transfer> BridgeBackAsync(string wrappedAsset, string amount, BurnOptions? burnOptions = null, UnlockOptions? unlockOptions = null, CancellationToken ct = default)
+    {
+        var receipt = await BurnAsync(wrappedAsset, amount, burnOptions, ct);
+        if (_config.Debug) Console.WriteLine($"Burned: {receipt.Id}");
+        var proof = await WaitForBurnProofAsync(receipt.Id, ct: ct);
+        if (_config.Debug) Console.WriteLine($"Proof ready, unlocking on {receipt.TargetChain}");
+        await UnlockAsync(proof, unlockOptions, ct);
+        return await WaitForTransferAsync(receipt.Id, ct: ct);
+    }
+
+    // Lifecycle
+    public async Task<bool> HealthCheckAsync(CancellationToken ct = default)
+    {
+        try { var r = await GetAsync<BridgeHealthResponse>("/health", ct); return r.Status == "healthy"; }
+        catch { return false; }
+    }
+
+    public bool IsClosed => _disposed;
+
+    public void Dispose()
+    {
+        if (!_disposed) { _httpClient.Dispose(); _disposed = true; }
+        GC.SuppressFinalize(this);
+    }
+
+    // Private HTTP methods
+    private async Task<T> GetAsync<T>(string path, CancellationToken ct)
+        => await ExecuteAsync(async () => {
+            var r = await _httpClient.GetAsync(path, ct);
+            await EnsureSuccessAsync(r);
+            return await r.Content.ReadFromJsonAsync<T>(_jsonOptions, ct)!;
+        });
+
+    private async Task<T> PostAsync<T>(string path, object body, CancellationToken ct)
+        => await ExecuteAsync(async () => {
+            var r = await _httpClient.PostAsJsonAsync(path, body, _jsonOptions, ct);
+            await EnsureSuccessAsync(r);
+            return await r.Content.ReadFromJsonAsync<T>(_jsonOptions, ct)!;
+        });
+
+    private async Task<T> ExecuteAsync<T>(Func<Task<T>> op)
+    {
+        Exception? err = null;
+        for (int i = 0; i < _config.Retries; i++)
+        {
+            try { return await op(); }
+            catch (Exception ex) { err = ex; if (i < _config.Retries - 1) await Task.Delay(1000 << i); }
+        }
+        throw err!;
+    }
+
+    private async Task EnsureSuccessAsync(HttpResponseMessage r)
+    {
+        if (!r.IsSuccessStatusCode)
+        {
+            var c = await r.Content.ReadAsStringAsync();
+            var e = JsonSerializer.Deserialize<Dictionary<string, object>>(c, _jsonOptions);
+            throw new BridgeException(e?.GetValueOrDefault("message")?.ToString() ?? $"HTTP {(int)r.StatusCode}",
+                e?.GetValueOrDefault("code")?.ToString(), (int)r.StatusCode);
+        }
+    }
+}
diff --git a/sdk/csharp/Synor.Sdk/Bridge/Types.cs b/sdk/csharp/Synor.Sdk/Bridge/Types.cs
new file mode 100644
index 0000000..676b9aa
--- /dev/null
+++ b/sdk/csharp/Synor.Sdk/Bridge/Types.cs
@@ -0,0 +1,185 @@
+namespace Synor.Sdk.Bridge;
+
+public record BridgeConfig
+{
+    public required string ApiKey { get; init; }
+    public string Endpoint { get; init; } = "https://bridge.synor.io/v1";
+    public TimeSpan Timeout { get; init; } = TimeSpan.FromSeconds(60);
+    public int Retries { get; init; } = 3;
+    public bool Debug { get; init; } = false;
+}
+
+public enum ChainId { Synor, Ethereum, Polygon, Arbitrum, Optimism, Bsc, Avalanche, Solana, Cosmos }
+public enum AssetType { Native, Erc20, Erc721, Erc1155 }
+public enum TransferStatus { Pending, Locked, Confirming, Minting, Completed, Failed, Refunded }
+public enum TransferDirection { LockMint, BurnUnlock }
+
+public record NativeCurrency { public required string Name { get; init; } public required string Symbol { get; init; } public int Decimals { get; init; } }
+
+public record Chain
+{
+    public ChainId Id { get; init; }
+    public required string Name { get; init; }
+    public long ChainIdNumber { get; init; }
+    public required string RpcUrl { get; init; }
+    public required string ExplorerUrl { get; init; }
+    public required NativeCurrency NativeCurrency { get; init; }
+    public int Confirmations { get; init; }
+    public int EstimatedBlockTime { get; init; }
+    public bool Supported { get; init; }
+}
+
+public record Asset
+{
+    public required string Id { get; init; }
+    public required string Symbol { get; init; }
+    public required string Name { get; init; }
+    public AssetType Type { get; init; }
+    public ChainId Chain { get; init; }
+    public string? ContractAddress { get; init; }
+    public int Decimals { get; init; }
+    public string? LogoUrl { get; init; }
+    public bool Verified { get; init; }
+}
+
+public record WrappedAsset
+{
+    public required Asset OriginalAsset { get; init; }
+    public required Asset WrappedAssetData { get; init; }
+    public ChainId Chain { get; init; }
+    public required string BridgeContract { get; init; }
+}
+
+public record ValidatorSignature { public required string Validator { get; init; } public required string Signature { get; init; } public long Timestamp { get; init; } }
+
+public record LockReceipt
+{
+    public required string Id { get; init; }
+    public required string TxHash { get; init; }
+    public ChainId SourceChain { get; init; }
+    public ChainId TargetChain { get; init; }
+    public required Asset Asset { get; init; }
+    public required string Amount { get; init; }
+    public required string Sender { get; init; }
+    public required string Recipient { get; init; }
+    public long LockTimestamp { get; init; }
+    public int Confirmations { get; init; }
+    public int RequiredConfirmations { get; init; }
+}
+
+public record LockProof
+{
+    public required LockReceipt LockReceipt { get; init; }
+    public required List<string> MerkleProof { get; init; }
+    public required string BlockHeader { get; init; }
+    public required List<ValidatorSignature> Signatures { get; init; }
+}
+
+public record BurnReceipt
+{
+    public required string Id { get; init; }
+    public required string TxHash { get; init; }
+    public ChainId SourceChain { get; init; }
+    public ChainId TargetChain { get; init; }
+    public required Asset WrappedAsset { get; init; }
+    public required Asset OriginalAsset { get; init; }
+    public required string Amount { get; init; }
+    public required string Sender { get; init; }
+    public required string Recipient { get; init; }
+    public long BurnTimestamp { get; init; }
+    public int Confirmations { get; init; }
+    public int RequiredConfirmations { get; init; }
+}
+
+public record BurnProof
+{
+    public required BurnReceipt BurnReceipt { get; init; }
+    public required List<string> MerkleProof { get; init; }
+    public required string BlockHeader { get; init; }
+    public required List<ValidatorSignature> Signatures { get; init; }
+}
+
+public record Transfer
+{
+    public required string Id { get; init; }
+    public TransferDirection Direction { get; init; }
+    public TransferStatus Status { get; init; }
+    public ChainId SourceChain { get; init; }
+    public ChainId TargetChain { get; init; }
+    public required Asset Asset { get; init; }
+    public required string Amount { get; init; }
+    public required string Sender { get; init; }
+    public required string Recipient { get; init; }
+    public string? SourceTxHash { get; init; }
+    public string? TargetTxHash { get; init; }
+    public required string Fee { get; init; }
+    public required Asset FeeAsset { get; init; }
+    public long CreatedAt { get; init; }
+    public long UpdatedAt { get; init; }
+    public long? CompletedAt { get; init; }
+    public string? ErrorMessage { get; init; }
+}
+
+public record TransferFilter
+{
+    public TransferStatus? Status { get; init; }
+    public ChainId? SourceChain { get; init; }
+    public ChainId? TargetChain { get; init; }
+    public int? Limit { get; init; }
+    public int? Offset { get; init; }
+}
+
+public record FeeEstimate
+{
+    public required string BridgeFee { get; init; }
+    public required string GasFeeSource { get; init; }
+    public required string GasFeeTarget { get; init; }
+    public required string TotalFee { get; init; }
+    public required Asset FeeAsset { get; init; }
+    public int EstimatedTime { get; init; }
+    public string? ExchangeRate { get; init; }
+}
+
+public record ExchangeRate
+{
+    public required Asset FromAsset { get; init; }
+    public required Asset ToAsset { get; init; }
+    public required string Rate { get; init; }
+    public required string InverseRate { get; init; }
+    public long LastUpdated { get; init; }
+    public required string Source { get; init; }
+}
+
+public record SignedTransaction
+{
+    public required string TxHash { get; init; }
+    public ChainId Chain { get; init; }
+    public required string From { get; init; }
+    public required string To { get; init; }
+    public required string Value { get; init; }
+    public required string Data { get; init; }
+    public required string GasLimit { get; init; }
+    public string? GasPrice { get; init; }
+    public string? MaxFeePerGas { get; init; }
+    public string? MaxPriorityFeePerGas { get; init; }
+    public int Nonce { get; init; }
+    public required string Signature { get; init; }
+}
+
+public record LockOptions { public string? Recipient { get; init; } public long? Deadline { get; init; } public double? Slippage { get; init; } }
+public record MintOptions { public string? GasLimit { get; init; } public string? MaxFeePerGas { get; init; } public string? MaxPriorityFeePerGas { get; init; } }
+public record BurnOptions { public string? Recipient { get; init; } public long? Deadline { get; init; } }
+public record UnlockOptions { public string? GasLimit { get; init; } public string? GasPrice { get; init; } }
+
+internal record ChainsResponse { public List<Chain>? Chains { get; init; } }
+internal record AssetsResponse { public List<Asset>? Assets { get; init; } }
+internal record TransfersResponse { public List<Transfer>? Transfers { get; init; } }
+internal record BridgeHealthResponse { public required string Status { get; init; } }
+
+public class BridgeException : Exception
+{
+    public string? Code { get; }
+    public int StatusCode { get; }
+    public bool IsConfirmationsPending => Code == "CONFIRMATIONS_PENDING";
+    public BridgeException(string message, string? code = null, int statusCode = 0) : base(message) { Code = code; StatusCode = statusCode; }
+}
diff --git a/sdk/csharp/Synor.Sdk/Database/SynorDatabase.cs b/sdk/csharp/Synor.Sdk/Database/SynorDatabase.cs
new file mode 100644
index 0000000..22add05
--- /dev/null
+++ b/sdk/csharp/Synor.Sdk/Database/SynorDatabase.cs
@@ -0,0 +1,335 @@
+using System.Net.Http.Json;
+using System.Text.Json;
+using System.Web;
+
+namespace Synor.Sdk.Database;
+
+/// <summary>
+/// Synor Database SDK client for C#.
+///
+/// Provides multi-model database with Key-Value, Document, Vector, and Time Series stores.
+/// </summary>
+/// <example>
+/// <code>
+/// var db = new SynorDatabase(new DatabaseConfig { ApiKey = "your-api-key" });
+///
+/// // Key-Value operations
+/// await db.Kv.SetAsync("mykey", "myvalue");
+/// var value = await db.Kv.GetAsync("mykey");
+///
+/// // Document operations
+/// var id = await db.Documents.CreateAsync("users", new { name = "Alice", age = 30 });
+/// var doc = await db.Documents.GetAsync("users", id);
+///
+/// db.Dispose();
+/// </code>
+/// </example>
+public class SynorDatabase : IDisposable
+{
+    private readonly DatabaseConfig _config;
+    private readonly HttpClient _httpClient;
+    private readonly JsonSerializerOptions _jsonOptions;
+    private bool _disposed;
+
+    public KeyValueStore Kv { get; }
+    public DocumentStore Documents { get; }
+    public VectorStore Vectors { get; }
+    public TimeSeriesStore TimeSeries { get; }
+
+    public SynorDatabase(DatabaseConfig config)
+    {
+        _config = config;
+        _httpClient = new HttpClient
+        {
+            BaseAddress = new Uri(config.Endpoint),
+            Timeout = config.Timeout
+        };
+        _httpClient.DefaultRequestHeaders.Add("Authorization", $"Bearer {config.ApiKey}");
+        _httpClient.DefaultRequestHeaders.Add("X-SDK-Version", "csharp/0.1.0");
+
+        _jsonOptions = new JsonSerializerOptions
+        {
+            PropertyNamingPolicy = JsonNamingPolicy.SnakeCaseLower,
+            PropertyNameCaseInsensitive = true
+        };
+
+        Kv = new KeyValueStore(this);
+        Documents = new DocumentStore(this);
+        Vectors = new VectorStore(this);
+        TimeSeries = new TimeSeriesStore(this);
+    }
+
+    /// <summary>
+    /// Key-Value store operations.
+    /// </summary>
+    public class KeyValueStore
+    {
+        private readonly SynorDatabase _db;
+
+        internal KeyValueStore(SynorDatabase db) => _db = db;
+
+        public async Task<object?> GetAsync(string key, CancellationToken ct = default)
+        {
+            var response = await _db.GetAsync<KvGetResponse>($"/kv/{Uri.EscapeDataString(key)}", ct);
+            return response.Value;
+        }
+
+        public async Task SetAsync(string key, object value, int? ttl = null, CancellationToken ct = default)
+        {
+            var body = new Dictionary<string, object> { ["key"] = key, ["value"] = value };
+            if (ttl.HasValue) body["ttl"] = ttl.Value;
+            await _db.PutAsync<object>($"/kv/{Uri.EscapeDataString(key)}", body, ct);
+        }
+
+        public async Task DeleteAsync(string key, CancellationToken ct = default)
+        {
+            await _db.DeleteAsync($"/kv/{Uri.EscapeDataString(key)}", ct);
+        }
+
+        public async Task<List<KeyValue>> ListAsync(string prefix, CancellationToken ct = default)
+        {
+            var response = await _db.GetAsync<KvListResponse>($"/kv?prefix={Uri.EscapeDataString(prefix)}", ct);
+            return response.Items ?? new List<KeyValue>();
+        }
+    }
+
+    /// <summary>
+    /// Document store operations.
+    /// </summary>
+    public class DocumentStore
+    {
+        private readonly SynorDatabase _db;
+
+        internal DocumentStore(SynorDatabase db) => _db = db;
+
+        public async Task<string> CreateAsync(string collection, object document, CancellationToken ct = default)
+        {
+            var response = await _db.PostAsync<CreateDocumentResponse>(
+                $"/collections/{Uri.EscapeDataString(collection)}/documents", document, ct);
+            return response.Id;
+        }
+
+        public async Task<Document> GetAsync(string collection, string id, CancellationToken ct = default)
+        {
+            return await _db.GetAsync<Document>(
+                $"/collections/{Uri.EscapeDataString(collection)}/documents/{Uri.EscapeDataString(id)}", ct);
+        }
+
+        public async Task UpdateAsync(string collection, string id, object update, CancellationToken ct = default)
+        {
+            await _db.PatchAsync<object>(
+                $"/collections/{Uri.EscapeDataString(collection)}/documents/{Uri.EscapeDataString(id)}", update, ct);
+        }
+
+        public async Task DeleteAsync(string collection, string id, CancellationToken ct = default)
+        {
+            await _db.DeleteAsync(
+                $"/collections/{Uri.EscapeDataString(collection)}/documents/{Uri.EscapeDataString(id)}", ct);
+        }
+
+        public async Task<List<Document>> QueryAsync(string collection, DocumentQuery query, CancellationToken ct = default)
+        {
+            var response = await _db.PostAsync<DocumentListResponse>(
+                $"/collections/{Uri.EscapeDataString(collection)}/query", query, ct);
+            return response.Documents ?? new List<Document>();
+        }
+    }
+
+    /// <summary>
+    /// Vector store operations.
+    /// </summary>
+    public class VectorStore
+    {
+        private readonly SynorDatabase _db;
+
+        internal VectorStore(SynorDatabase db) => _db = db;
+
+        public async Task UpsertAsync(string collection, IEnumerable<VectorEntry> vectors, CancellationToken ct = default)
+        {
+            await _db.PostAsync<object>(
+                $"/vectors/{Uri.EscapeDataString(collection)}/upsert",
+                new { vectors = vectors }, ct);
+        }
+
+        public async Task<List<SearchResult>> SearchAsync(string collection, double[] vector, int k, CancellationToken ct = default)
+        {
+            var response = await _db.PostAsync<SearchListResponse>(
+                $"/vectors/{Uri.EscapeDataString(collection)}/search",
+                new { vector, k }, ct);
+            return response.Results ?? new List<SearchResult>();
+        }
+
+        public async Task DeleteAsync(string collection, IEnumerable<string> ids, CancellationToken ct = default)
+        {
+            await _db.DeleteAsync($"/vectors/{Uri.EscapeDataString(collection)}", new { ids = ids }, ct);
+        }
+    }
+
+    /// <summary>
+    /// Time series store operations.
+    /// </summary>
+    public class TimeSeriesStore
+    {
+        private readonly SynorDatabase _db;
+
+        internal TimeSeriesStore(SynorDatabase db) => _db = db;
+
+        public async Task WriteAsync(string series, IEnumerable<DataPoint> points, CancellationToken ct = default)
+        {
+            await _db.PostAsync<object>(
+                $"/timeseries/{Uri.EscapeDataString(series)}/write",
+                new { points = points }, ct);
+        }
+
+        public async Task<List<DataPoint>> QueryAsync(
+            string series, TimeRange range, Aggregation? aggregation = null, CancellationToken ct = default)
+        {
+            var body = new Dictionary<string, object> { ["range"] = range };
+            if (aggregation != null) body["aggregation"] = aggregation;
+
+            var response = await _db.PostAsync<DataPointListResponse>(
+                $"/timeseries/{Uri.EscapeDataString(series)}/query", body, ct);
+            return response.Points ?? new List<DataPoint>();
+        }
+    }
+
+    /// <summary>
+    /// Perform a health check.
+    /// </summary>
+    public async Task<bool> HealthCheckAsync(CancellationToken ct = default)
+    {
+        try
+        {
+            var response = await GetAsync<HealthResponse>("/health", ct);
+            return response.Status == "healthy";
+        }
+        catch
+        {
+            return false;
+        }
+    }
+
+    public bool IsClosed => _disposed;
+
+    public void Dispose()
+    {
+        if (!_disposed)
+        {
+            _httpClient.Dispose();
+            _disposed = true;
+        }
+        GC.SuppressFinalize(this);
+    }
+
+    // Private HTTP methods
+    internal async Task<T> GetAsync<T>(string path, CancellationToken ct)
+    {
+        return await ExecuteWithRetryAsync(async () =>
+        {
+            var response = await _httpClient.GetAsync(path, ct);
+            await EnsureSuccessAsync(response);
+            return await response.Content.ReadFromJsonAsync<T>(_jsonOptions, ct)
+                ?? throw new DatabaseException("Failed to deserialize response");
+        });
+    }
+
+    internal async Task<T> PostAsync<T>(string path, object body, CancellationToken ct)
+    {
+        return await ExecuteWithRetryAsync(async () =>
+        {
+            var response = await _httpClient.PostAsJsonAsync(path, body, _jsonOptions, ct);
+            await EnsureSuccessAsync(response);
+            var content = await response.Content.ReadAsStringAsync(ct);
+            if (string.IsNullOrEmpty(content)) return default!;
+            return JsonSerializer.Deserialize<T>(content, _jsonOptions)!;
+        });
+    }
+
+    internal async Task<T> PutAsync<T>(string path, object body, CancellationToken ct)
+    {
+        return await ExecuteWithRetryAsync(async () =>
+        {
+            var response = await _httpClient.PutAsJsonAsync(path, body, _jsonOptions, ct);
+            await EnsureSuccessAsync(response);
+            var content = await response.Content.ReadAsStringAsync(ct);
+            if (string.IsNullOrEmpty(content)) return default!;
+            return JsonSerializer.Deserialize<T>(content, _jsonOptions)!;
+        });
+    }
+
+    internal async Task<T> PatchAsync<T>(string path, object body, CancellationToken ct)
+    {
+        return await ExecuteWithRetryAsync(async () =>
+        {
+            var request = new HttpRequestMessage(HttpMethod.Patch, path)
+            {
+                Content = JsonContent.Create(body, options: _jsonOptions)
+            };
+            var response = await _httpClient.SendAsync(request, ct);
+            await EnsureSuccessAsync(response);
+            var content = await response.Content.ReadAsStringAsync(ct);
+            if (string.IsNullOrEmpty(content)) return default!;
+            return JsonSerializer.Deserialize<T>(content, _jsonOptions)!;
+        });
+    }
+
+    internal async Task DeleteAsync(string path, CancellationToken ct)
+    {
+        await ExecuteWithRetryAsync(async () =>
+        {
+            var response = await _httpClient.DeleteAsync(path, ct);
+            await EnsureSuccessAsync(response);
+            return true;
+        });
+    }
+
+    internal async Task DeleteAsync(string path, object body, CancellationToken ct)
+    {
+        await ExecuteWithRetryAsync(async () =>
+        {
+            var request = new HttpRequestMessage(HttpMethod.Delete, path)
+            {
+                Content = JsonContent.Create(body, options: _jsonOptions)
+            };
+            var response = await _httpClient.SendAsync(request, ct);
+            await EnsureSuccessAsync(response);
+            return true;
+        });
+    }
+
+    private async Task<T> ExecuteWithRetryAsync<T>(Func<Task<T>> operation)
+    {
+        Exception? lastError = null;
+
+        for (int attempt = 0; attempt < _config.Retries; attempt++)
+        {
+            try
+            {
+                return await operation();
+            }
+            catch (Exception ex)
+            {
+                lastError = ex;
+                if (_config.Debug) Console.WriteLine($"Attempt {attempt + 1} failed: {ex.Message}");
+                if (attempt < _config.Retries - 1)
+                {
+                    await Task.Delay(TimeSpan.FromSeconds(1 << attempt));
+                }
+            }
+        }
+
+        throw lastError ?? new DatabaseException("Unknown error");
+    }
+
+    private async Task EnsureSuccessAsync(HttpResponseMessage response)
+    {
+        if (!response.IsSuccessStatusCode)
+        {
+            var content = await response.Content.ReadAsStringAsync();
+            var error = JsonSerializer.Deserialize<Dictionary<string, object>>(content, _jsonOptions);
+            var message = error?.GetValueOrDefault("message")?.ToString() ?? $"HTTP {(int)response.StatusCode}";
+            var code = error?.GetValueOrDefault("code")?.ToString();
+            throw new DatabaseException(message, code, (int)response.StatusCode);
+        }
+    }
+}
diff --git a/sdk/csharp/Synor.Sdk/Database/Types.cs b/sdk/csharp/Synor.Sdk/Database/Types.cs
new file mode 100644
index 0000000..e2b2089
--- /dev/null
+++ b/sdk/csharp/Synor.Sdk/Database/Types.cs
@@ -0,0 +1,152 @@
+using System.Text.Json.Serialization;
+
+namespace Synor.Sdk.Database;
+
+/// <summary>
+/// Database configuration.
+/// </summary>
+public record DatabaseConfig
+{
+    public required string ApiKey { get; init; }
+    public string Endpoint { get; init; } = "https://db.synor.io/v1";
+    public TimeSpan Timeout { get; init; } = TimeSpan.FromSeconds(60);
+    public int Retries { get; init; } = 3;
+    public bool Debug { get; init; } = false;
+}
+
+/// <summary>
+/// A key-value entry.
+/// </summary>
+public record KeyValue
+{
+    public required string Key { get; init; }
+    public object? Value { get; init; }
+    public int? Ttl { get; init; }
+    public long? CreatedAt { get; init; }
+    public long? UpdatedAt { get; init; }
+}
+
+/// <summary>
+/// A document.
+/// </summary>
+public record Document
+{
+    public required string Id { get; init; }
+    public required string Collection { get; init; }
+    public required Dictionary<string, object> Data { get; init; }
+    public long CreatedAt { get; init; }
+    public long UpdatedAt { get; init; }
+}
+
+/// <summary>
+/// Query parameters for documents.
+/// </summary>
+public record DocumentQuery
+{
+    public Dictionary<string, object>? Filter { get; init; }
+    public Dictionary<string, int>? Sort { get; init; }
+    public int? Limit { get; init; }
+    public int? Offset { get; init; }
+    public List<string>? Projection { get; init; }
+}
+
+/// <summary>
+/// A vector entry.
+/// </summary>
+public record VectorEntry
+{
+    public required string Id { get; init; }
+    public required double[] Vector { get; init; }
+    public Dictionary<string, object>? Metadata { get; init; }
+}
+
+/// <summary>
+/// A search result.
+/// </summary>
+public record SearchResult
+{
+    public required string Id { get; init; }
+    public double Score { get; init; }
+    public double[]? Vector { get; init; }
+    public Dictionary<string, object>? Metadata { get; init; }
+}
+
+/// <summary>
+/// A time series data point.
+/// </summary>
+public record DataPoint
+{
+    public long Timestamp { get; init; }
+    public double Value { get; init; }
+    public Dictionary<string, string>? Tags { get; init; }
+}
+
+/// <summary>
+/// Time range for queries.
+/// </summary>
+public record TimeRange
+{
+    public long Start { get; init; }
+    public long End { get; init; }
+}
+
+/// <summary>
+/// Aggregation settings.
+/// </summary>
+public record Aggregation
+{
+    public required string Function { get; init; }  // avg, sum, min, max, count
+    public required string Interval { get; init; }  // 1m, 5m, 1h, 1d
+}
+
+// Internal response types
+internal record KvGetResponse
+{
+    public object? Value { get; init; }
+}
+
+internal record KvListResponse
+{
+    public List<KeyValue>? Items { get; init; }
+}
+
+internal record CreateDocumentResponse
+{
+    public required string Id { get; init; }
+}
+
+internal record DocumentListResponse
+{
+    public List<Document>? Documents { get; init; }
+}
+
+internal record SearchListResponse
+{
+    public List<SearchResult>? Results { get; init; }
+}
+
+internal record DataPointListResponse
+{
+    public List<DataPoint>? Points { get; init; }
+}
+
+internal record HealthResponse
+{
+    public required string Status { get; init; }
+}
+
+/// <summary>
+/// Database exception.
+/// </summary>
+public class DatabaseException : Exception
+{
+    public string? Code { get; }
+    public int StatusCode { get; }
+
+    public DatabaseException(string message, string? code = null, int statusCode = 0)
+        : base(message)
+    {
+        Code = code;
+        StatusCode = statusCode;
+    }
+}
diff --git a/sdk/csharp/Synor.Sdk/Hosting/SynorHosting.cs b/sdk/csharp/Synor.Sdk/Hosting/SynorHosting.cs
new file mode 100644
index 0000000..ab21033
--- /dev/null
+++ b/sdk/csharp/Synor.Sdk/Hosting/SynorHosting.cs
@@ -0,0 +1,204 @@
+using System.Net.Http.Json;
+using System.Text.Json;
+
+namespace Synor.Sdk.Hosting;
+
+/// <summary>
+/// Synor Hosting SDK client for C#.
+/// Provides decentralized web hosting with domain management, DNS, deployments, and SSL.
+/// </summary>
+public class SynorHosting : IDisposable
+{
+    private readonly HostingConfig _config;
+    private readonly HttpClient _httpClient;
+    private readonly JsonSerializerOptions _jsonOptions;
+    private bool _disposed;
+
+    public SynorHosting(HostingConfig config)
+    {
+        _config = config;
+        _httpClient = new HttpClient
+        {
+            BaseAddress = new Uri(config.Endpoint),
+            Timeout = config.Timeout
+        };
+        _httpClient.DefaultRequestHeaders.Add("Authorization", $"Bearer {config.ApiKey}");
+        _httpClient.DefaultRequestHeaders.Add("X-SDK-Version", "csharp/0.1.0");
+        _jsonOptions = new JsonSerializerOptions
+        {
+            PropertyNamingPolicy = JsonNamingPolicy.SnakeCaseLower,
+            PropertyNameCaseInsensitive = true
+        };
+    }
+
+    // Domain Operations
+    public async Task<DomainAvailability> CheckAvailabilityAsync(string name, CancellationToken ct = default)
+        => await GetAsync<DomainAvailability>($"/domains/check/{Uri.EscapeDataString(name)}", ct);
+
+    public async Task<Domain> RegisterDomainAsync(string name, RegisterDomainOptions? options = null, CancellationToken ct = default)
+    {
+        var body = new Dictionary<string, object> { ["name"] = name };
+        if (options?.Years != null) body["years"] = options.Years;
+        if (options?.AutoRenew != null) body["autoRenew"] = options.AutoRenew;
+        return await PostAsync<Domain>("/domains", body, ct);
+    }
+
+    public async Task<Domain> GetDomainAsync(string name, CancellationToken ct = default)
+        => await GetAsync<Domain>($"/domains/{Uri.EscapeDataString(name)}", ct);
+
+    public async Task<List<Domain>> ListDomainsAsync(CancellationToken ct = default)
+    {
+        var response = await GetAsync<DomainsResponse>("/domains", ct);
+        return response.Domains ?? new List<Domain>();
+    }
+
+    public async Task<DomainRecord> ResolveDomainAsync(string name, CancellationToken ct = default)
+        => await GetAsync<DomainRecord>($"/domains/{Uri.EscapeDataString(name)}/resolve", ct);
+
+    public async Task<Domain> RenewDomainAsync(string name, int years, CancellationToken ct = default)
+        => await PostAsync<Domain>($"/domains/{Uri.EscapeDataString(name)}/renew", new { years }, ct);
+
+    // DNS Operations
+    public async Task<DnsZone> GetDnsZoneAsync(string domain, CancellationToken ct = default)
+        => await GetAsync<DnsZone>($"/dns/{Uri.EscapeDataString(domain)}", ct);
+
+    public async Task<DnsZone> SetDnsRecordsAsync(string domain, IEnumerable<DnsRecord> records, CancellationToken ct = default)
+        => await PutAsync<DnsZone>($"/dns/{Uri.EscapeDataString(domain)}", new { records }, ct);
+
+    public async Task<DnsZone> AddDnsRecordAsync(string domain, DnsRecord record, CancellationToken ct = default)
+        => await PostAsync<DnsZone>($"/dns/{Uri.EscapeDataString(domain)}/records", record, ct);
+
+    // Deployment Operations
+    public async Task<Deployment> DeployAsync(string cid, DeployOptions? options = null, CancellationToken ct = default)
+    {
+        var body = new Dictionary<string, object> { ["cid"] = cid };
+        if (options?.Domain != null) body["domain"] = options.Domain;
+        if (options?.Subdomain != null) body["subdomain"] = options.Subdomain;
+        if (options?.Spa != null) body["spa"] = options.Spa;
+        if (options?.CleanUrls != null) body["cleanUrls"] = options.CleanUrls;
+        return await PostAsync<Deployment>("/deployments", body, ct);
+    }
+
+    public async Task<Deployment> GetDeploymentAsync(string id, CancellationToken ct = default)
+        => await GetAsync<Deployment>($"/deployments/{Uri.EscapeDataString(id)}", ct);
+
+    public async Task<List<Deployment>> ListDeploymentsAsync(string? domain = null, CancellationToken ct = default)
+    {
+        var path = domain != null ? $"/deployments?domain={Uri.EscapeDataString(domain)}" : "/deployments";
+        var response = await GetAsync<DeploymentsResponse>(path, ct);
+        return response.Deployments ?? new List<Deployment>();
+    }
+
+    public async Task<Deployment> RollbackAsync(string domain, string deploymentId, CancellationToken ct = default)
+        => await PostAsync<Deployment>($"/deployments/{Uri.EscapeDataString(deploymentId)}/rollback", new { domain }, ct);
+
+    public async Task DeleteDeploymentAsync(string id, CancellationToken ct = default)
+        => await DeleteAsync($"/deployments/{Uri.EscapeDataString(id)}", ct);
+
+    // SSL Operations
+    public async Task<Certificate> ProvisionSslAsync(string domain, ProvisionSslOptions? options = null, CancellationToken ct = default)
+    {
+        var body = options ?? new ProvisionSslOptions();
+        return await PostAsync<Certificate>($"/ssl/{Uri.EscapeDataString(domain)}", body, ct);
+    }
+
+    public async Task<Certificate> GetCertificateAsync(string domain, CancellationToken ct = default)
+        => await GetAsync<Certificate>($"/ssl/{Uri.EscapeDataString(domain)}", ct);
+
+    public async Task<Certificate> RenewCertificateAsync(string domain, CancellationToken ct = default)
+        => await PostAsync<Certificate>($"/ssl/{Uri.EscapeDataString(domain)}/renew", new { }, ct);
+
+    // Analytics
+    public async Task<AnalyticsData> GetAnalyticsAsync(string domain, AnalyticsOptions? options = null, CancellationToken ct = default)
+    {
+        var path = $"/sites/{Uri.EscapeDataString(domain)}/analytics";
+        var query = new List<string>();
+        if (options?.Period != null) query.Add($"period={Uri.EscapeDataString(options.Period)}");
+        if (options?.Start != null) query.Add($"start={Uri.EscapeDataString(options.Start)}");
+        if (options?.End != null) query.Add($"end={Uri.EscapeDataString(options.End)}");
+        if (query.Count > 0) path += "?" + string.Join("&", query);
+        return await GetAsync<AnalyticsData>(path, ct);
+    }
+
+    public async Task<long> PurgeCacheAsync(string domain, IEnumerable<string>? paths = null, CancellationToken ct = default)
+    {
+        var body = paths != null ? new { paths } : null;
+        var response = await DeleteAsync<PurgeResponse>($"/sites/{Uri.EscapeDataString(domain)}/cache", body, ct);
+        return response.Purged;
+    }
+
+    // Lifecycle
+    public async Task<bool> HealthCheckAsync(CancellationToken ct = default)
+    {
+        try { var r = await GetAsync<HostingHealthResponse>("/health", ct); return r.Status == "healthy"; }
+        catch { return false; }
+    }
+
+    public bool IsClosed => _disposed;
+
+    public void Dispose()
+    {
+        if (!_disposed) { _httpClient.Dispose(); _disposed = true; }
+        GC.SuppressFinalize(this);
+    }
+
+    // Private HTTP methods
+    private async Task<T> GetAsync<T>(string path, CancellationToken ct)
+        => await ExecuteAsync(async () => {
+            var r = await _httpClient.GetAsync(path, ct);
+            await EnsureSuccessAsync(r);
+            return await r.Content.ReadFromJsonAsync<T>(_jsonOptions, ct)!;
+        });
+
+    private async Task<T> PostAsync<T>(string path, object body, CancellationToken ct)
+        => await ExecuteAsync(async () => {
+            var r = await _httpClient.PostAsJsonAsync(path, body, _jsonOptions, ct);
+            await EnsureSuccessAsync(r);
+            return await r.Content.ReadFromJsonAsync<T>(_jsonOptions, ct)!;
+        });
+
+    private async Task<T> PutAsync<T>(string path, object body, CancellationToken ct)
+        => await ExecuteAsync(async () => {
+            var r = await _httpClient.PutAsJsonAsync(path, body, _jsonOptions, ct);
+            await EnsureSuccessAsync(r);
+            return await r.Content.ReadFromJsonAsync<T>(_jsonOptions, ct)!;
+        });
+
+    private async Task DeleteAsync(string path, CancellationToken ct)
+        => await ExecuteAsync(async () => {
+            var r = await _httpClient.DeleteAsync(path, ct);
+            await EnsureSuccessAsync(r);
+            return true;
+        });
+
+    private async Task<T> DeleteAsync<T>(string path, object? body, CancellationToken ct)
+        => await ExecuteAsync(async () => {
+            var req = new HttpRequestMessage(HttpMethod.Delete, path);
+            if (body != null) req.Content = JsonContent.Create(body, options: _jsonOptions);
+            var r = await _httpClient.SendAsync(req, ct);
+            await EnsureSuccessAsync(r);
+            return await r.Content.ReadFromJsonAsync<T>(_jsonOptions, ct)!;
+        });
+
+    private async Task<T> ExecuteAsync<T>(Func<Task<T>> op)
+    {
+        Exception? err = null;
+        for (int i = 0; i < _config.Retries; i++)
+        {
+            try { return await op(); }
+            catch (Exception ex) { err = ex; if (i < _config.Retries - 1) await Task.Delay(1000 << i); }
+        }
+        throw err!;
+    }
+
+    private async Task EnsureSuccessAsync(HttpResponseMessage r)
+    {
+        if (!r.IsSuccessStatusCode)
+        {
+            var c = await r.Content.ReadAsStringAsync();
+            var e = JsonSerializer.Deserialize<Dictionary<string, object>>(c, _jsonOptions);
+            throw new HostingException(e?.GetValueOrDefault("message")?.ToString() ?? $"HTTP {(int)r.StatusCode}",
+                e?.GetValueOrDefault("code")?.ToString(), (int)r.StatusCode);
+        }
+    }
+}
diff --git a/sdk/csharp/Synor.Sdk/Hosting/Types.cs b/sdk/csharp/Synor.Sdk/Hosting/Types.cs
new file mode 100644
index 0000000..4a331a9
--- /dev/null
+++ b/sdk/csharp/Synor.Sdk/Hosting/Types.cs
@@ -0,0 +1,152 @@
+namespace Synor.Sdk.Hosting;
+
+public record HostingConfig
+{
+    public required string ApiKey { get; init; }
+    public string Endpoint { get; init; } = "https://hosting.synor.io/v1";
+    public TimeSpan Timeout { get; init; } = TimeSpan.FromSeconds(60);
+    public int Retries { get; init; } = 3;
+    public bool Debug { get; init; } = false;
+}
+
+public enum DomainStatus { Pending, Active, Expired, Suspended }
+public enum DeploymentStatus { Pending, Building, Deploying, Active, Failed, Inactive }
+public enum CertificateStatus { Pending, Issued, Expired, Revoked }
+public enum DnsRecordType { A, AAAA, CNAME, TXT, MX, NS, SRV, CAA }
+
+public record DomainRecord
+{
+    public string? Cid { get; init; }
+    public List<string>? Ipv4 { get; init; }
+    public List<string>? Ipv6 { get; init; }
+    public string? Cname { get; init; }
+    public List<string>? Txt { get; init; }
+    public Dictionary<string, string>? Metadata { get; init; }
+}
+
+public record Domain
+{
+    public required string Name { get; init; }
+    public DomainStatus Status { get; init; }
+    public required string Owner { get; init; }
+    public long RegisteredAt { get; init; }
+    public long ExpiresAt { get; init; }
+    public bool AutoRenew { get; init; }
+    public DomainRecord? Records { get; init; }
+}
+
+public record DomainAvailability
+{
+    public required string Name { get; init; }
+    public bool Available { get; init; }
+    public double? Price { get; init; }
+    public bool Premium { get; init; }
+}
+
+public record RegisterDomainOptions
+{
+    public int? Years { get; init; }
+    public bool? AutoRenew { get; init; }
+}
+
+public record DnsRecord
+{
+    public DnsRecordType Type { get; init; }
+    public required string Name { get; init; }
+    public required string Value { get; init; }
+    public int Ttl { get; init; } = 3600;
+    public int? Priority { get; init; }
+}
+
+public record DnsZone
+{
+    public required string Domain { get; init; }
+    public required List<DnsRecord> Records { get; init; }
+    public long UpdatedAt { get; init; }
+}
+
+public record Deployment
+{
+    public required string Id { get; init; }
+    public required string Domain { get; init; }
+    public required string Cid { get; init; }
+    public DeploymentStatus Status { get; init; }
+    public required string Url { get; init; }
+    public long CreatedAt { get; init; }
+    public long UpdatedAt { get; init; }
+    public string? BuildLogs { get; init; }
+    public string? ErrorMessage { get; init; }
+}
+
+public record DeployOptions
+{
+    public string? Domain { get; init; }
+    public string? Subdomain { get; init; }
+    public bool? Spa { get; init; }
+    public bool? CleanUrls { get; init; }
+    public bool? TrailingSlash { get; init; }
+}
+
+public record Certificate
+{
+    public required string Domain { get; init; }
+    public CertificateStatus Status { get; init; }
+    public bool AutoRenew { get; init; }
+    public required string Issuer { get; init; }
+    public long? IssuedAt { get; init; }
+    public long? ExpiresAt { get; init; }
+    public string? Fingerprint { get; init; }
+}
+
+public record ProvisionSslOptions
+{
+    public bool? IncludeWww { get; init; }
+    public bool? AutoRenew { get; init; }
+}
+
+public record SiteConfig
+{
+    public required string Domain { get; init; }
+    public string? Cid { get; init; }
+    public Dictionary<string, string>? Headers { get; init; }
+    public bool Spa { get; init; }
+    public bool CleanUrls { get; init; } = true;
+    public bool TrailingSlash { get; init; }
+}
+
+public record PageView { public required string Path { get; init; } public long Views { get; init; } }
+public record Referrer { public required string ReferrerUrl { get; init; } public long Count { get; init; } }
+public record Country { public required string CountryCode { get; init; } public long Count { get; init; } }
+
+public record AnalyticsData
+{
+    public required string Domain { get; init; }
+    public required string Period { get; init; }
+    public long PageViews { get; init; }
+    public long UniqueVisitors { get; init; }
+    public long Bandwidth { get; init; }
+    public required List<PageView> TopPages { get; init; }
+}
+
+public record AnalyticsOptions
+{
+    public string? Period { get; init; }
+    public string? Start { get; init; }
+    public string? End { get; init; }
+}
+
+internal record DomainsResponse { public List<Domain>? Domains { get; init; } }
+internal record DeploymentsResponse { public List<Deployment>? Deployments { get; init; } }
+internal record PurgeResponse { public long Purged { get; init; } }
+internal record HostingHealthResponse { public required string Status { get; init; } }
+
+public class HostingException : Exception
+{
+    public string? Code { get; }
+    public int StatusCode { get; }
+    public HostingException(string message, string? code = null, int statusCode = 0) : base(message)
+    {
+        Code = code;
+        StatusCode = statusCode;
+    }
+}
diff --git a/sdk/ruby/lib/synor_bridge.rb b/sdk/ruby/lib/synor_bridge.rb
new file mode 100644
index 0000000..31882c2
--- /dev/null
+++ b/sdk/ruby/lib/synor_bridge.rb
@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+require_relative "synor_bridge/version"
+require_relative "synor_bridge/types"
+require_relative "synor_bridge/client"
+
+module SynorBridge
+  class Error < StandardError; end
+  class ClientClosedError < Error; end
+  class HttpError < Error
+    attr_reader :status_code, :code
+
+    def initialize(message, status_code: 0, code: nil)
+      super(message)
+      @status_code = status_code
+      @code = code
+    end
+
+    def confirmations_pending?
+      @code == "CONFIRMATIONS_PENDING"
+    end
+  end
+end
diff --git a/sdk/ruby/lib/synor_bridge/client.rb b/sdk/ruby/lib/synor_bridge/client.rb
new file mode 100644
index 0000000..5e0fbe2
--- /dev/null
+++ b/sdk/ruby/lib/synor_bridge/client.rb
@@ -0,0 +1,579 @@
+# frozen_string_literal: true
+
+require "faraday"
+require "json"
+require "uri"
+
+module SynorBridge
+  # Synor Bridge SDK client for Ruby.
+  # Cross-chain asset transfers with lock-mint and burn-unlock patterns.
+  class Client
+    FINAL_STATUSES = [
+      TransferStatus::COMPLETED,
+      TransferStatus::FAILED,
+      TransferStatus::REFUNDED
+    ].freeze
+
+    attr_reader :closed
+
+    def initialize(config)
+      @config = config
+      @closed = false
+      @conn = Faraday.new(url: config.endpoint) do |f|
+        f.request :json
+        f.response :json
+        f.options.timeout = config.timeout
+        f.headers["Authorization"] = "Bearer #{config.api_key}"
+        f.headers["Content-Type"] = "application/json"
+        f.headers["X-SDK-Version"] = "ruby/#{VERSION}"
+      end
+    end
+
+    # ==================== Chain Operations ====================
+
+    # Get supported chains
+    def get_supported_chains
+      response = get("/chains")
+      (response["chains"] || []).map { |c| parse_chain(c) }
+    end
+
+    # Get chain details
+    def get_chain(chain_id)
+      response = get("/chains/#{chain_id.downcase}")
+      parse_chain(response)
+    end
+
+    # Check if chain is supported
+    def chain_supported?(chain_id)
+      chain = get_chain(chain_id)
+      chain.supported
+    rescue StandardError
+      false
+    end
+
+    # ==================== Asset Operations ====================
+
+    # Get supported assets for a chain
+    def get_supported_assets(chain_id)
+      response = get("/chains/#{chain_id.downcase}/assets")
+      (response["assets"] || []).map { |a| parse_asset(a) }
+    end
+
+    # Get asset details
+    def get_asset(asset_id)
+      response = get("/assets/#{encode(asset_id)}")
+      parse_asset(response)
+    end
+
+    # Get wrapped asset info
+    def get_wrapped_asset(original_asset_id, target_chain)
+      response = get("/assets/#{encode(original_asset_id)}/wrapped/#{target_chain.downcase}")
+      parse_wrapped_asset(response)
+    end
+
+    # ==================== Fee Operations ====================
+
+    # Estimate transfer fee
+    def estimate_fee(asset:, amount:, source_chain:, target_chain:)
+      body = {
+        asset: asset,
+        amount: amount,
+        source_chain: source_chain.downcase,
+        target_chain: target_chain.downcase
+      }
+      response = post("/fees/estimate", body)
+      parse_fee_estimate(response)
+    end
+
+    # Get exchange rate
+    def get_exchange_rate(from_asset, to_asset)
+      response = get("/rates/#{encode(from_asset)}/#{encode(to_asset)}")
+      parse_exchange_rate(response)
+    end
+
+    # ==================== Lock-Mint Flow ====================
+
+    # Lock assets for cross-chain transfer
+    def lock(asset:, amount:, target_chain:, options: nil)
+      body = {
+        asset: asset,
+        amount: amount,
+        target_chain: target_chain.downcase
+      }
+      if options
+        body[:recipient] = options.recipient if options.recipient
+        body[:deadline] = options.deadline if options.deadline
+        body[:slippage] = options.slippage if options.slippage
+      end
+      response = post("/transfers/lock", body)
+      parse_lock_receipt(response)
+    end
+
+    # Get lock proof
+    def get_lock_proof(lock_receipt_id)
+      response = get("/transfers/lock/#{encode(lock_receipt_id)}/proof")
+      parse_lock_proof(response)
+    end
+
+    # Wait for lock proof
+    def wait_for_lock_proof(lock_receipt_id, poll_interval: 5, max_wait: 600)
+      deadline = Time.now + max_wait
+      while Time.now < deadline
+        begin
+          return get_lock_proof(lock_receipt_id)
+        rescue HttpError => e
+          raise e unless e.confirmations_pending?
+
+          sleep(poll_interval)
+        end
+      end
+      raise HttpError.new("Timeout waiting for lock proof", code: "CONFIRMATIONS_PENDING")
+    end
+
+    # Mint wrapped assets
+    def mint(proof:, target_address:, options: nil)
+      body = { proof: proof_to_hash(proof), target_address: target_address }
+      if options
+        body[:gas_limit] = options.gas_limit if options.gas_limit
+        body[:max_fee_per_gas] = options.max_fee_per_gas if options.max_fee_per_gas
+        body[:max_priority_fee_per_gas] = options.max_priority_fee_per_gas if options.max_priority_fee_per_gas
+      end
+      response = post("/transfers/mint", body)
+      parse_signed_transaction(response)
+    end
+
+    # ==================== Burn-Unlock Flow ====================
+
+    # Burn wrapped assets
+    def burn(wrapped_asset:, amount:, options: nil)
+      body = { wrapped_asset: wrapped_asset, amount: amount }
+      if options
+        body[:recipient] = options.recipient if options.recipient
+        body[:deadline] = options.deadline if options.deadline
+      end
+      response = post("/transfers/burn", body)
+      parse_burn_receipt(response)
+    end
+
+    # Get burn proof
+    def get_burn_proof(burn_receipt_id)
+      response = get("/transfers/burn/#{encode(burn_receipt_id)}/proof")
+      parse_burn_proof(response)
+    end
+
+    # Wait for burn proof
+    def wait_for_burn_proof(burn_receipt_id, poll_interval: 5, max_wait: 600)
+      deadline = Time.now + max_wait
+      while Time.now < deadline
+        begin
+          return get_burn_proof(burn_receipt_id)
+        rescue HttpError => e
+          raise e unless e.confirmations_pending?
+
+          sleep(poll_interval)
+        end
+      end
+      raise HttpError.new("Timeout waiting for burn proof", code: "CONFIRMATIONS_PENDING")
+    end
+
+    # Unlock original assets
+    def unlock(proof:, options: nil)
+      body = { proof: burn_proof_to_hash(proof) }
+      if options
+        body[:gas_limit] = options.gas_limit if options.gas_limit
+        body[:gas_price] = options.gas_price if options.gas_price
+      end
+      response = post("/transfers/unlock", body)
+      parse_signed_transaction(response)
+    end
+
+    # ==================== Transfer Management ====================
+
+    # Get transfer details
+    def get_transfer(transfer_id)
+      response = get("/transfers/#{encode(transfer_id)}")
+      parse_transfer(response)
+    end
+
+    # Get transfer status
+    def get_transfer_status(transfer_id)
+      transfer = get_transfer(transfer_id)
+      transfer.status
+    end
+
+    # List transfers
+    def list_transfers(filter: nil)
+      params = {}
+      if filter
+        params[:status] = filter.status.downcase if filter.status
+        params[:source_chain] = filter.source_chain.downcase if filter.source_chain
+        params[:target_chain] = filter.target_chain.downcase if filter.target_chain
+        params[:limit] = filter.limit if filter.limit
+        params[:offset] = filter.offset if filter.offset
+      end
+      response = get("/transfers", params)
+      (response["transfers"] || []).map { |t| parse_transfer(t) }
+    end
+
+    # Wait for transfer completion
+    def wait_for_transfer(transfer_id, poll_interval: 10, max_wait: 1800)
+      deadline = Time.now + max_wait
+      while Time.now < deadline
+        transfer = get_transfer(transfer_id)
+        return transfer if FINAL_STATUSES.include?(transfer.status)
+
+        sleep(poll_interval)
+      end
+      raise Error, "Timeout waiting for transfer completion"
+    end
+
+    # ==================== Convenience Methods ====================
+
+    # Bridge assets to another chain (lock-mint flow)
+    def bridge_to(asset:, amount:, target_chain:, target_address:, lock_options: nil, mint_options: nil)
+      receipt = lock(asset: asset, amount: amount, target_chain: target_chain, options: lock_options)
+      puts "Locked: #{receipt.id}, waiting for confirmations..." if @config.debug
+
+      proof = wait_for_lock_proof(receipt.id)
+      puts "Proof ready, minting on #{target_chain}..." if @config.debug
+
+      mint(proof: proof, target_address: target_address, options: mint_options)
+      wait_for_transfer(receipt.id)
+    end
+
+    # Bridge assets back to original chain (burn-unlock flow)
+    def bridge_back(wrapped_asset:, amount:, burn_options: nil, unlock_options: nil)
+      receipt = burn(wrapped_asset: wrapped_asset, amount: amount, options: burn_options)
+      puts "Burned: #{receipt.id}, waiting for confirmations..." if @config.debug
+
+      proof = wait_for_burn_proof(receipt.id)
+      puts "Proof ready, unlocking on #{receipt.target_chain}..." if @config.debug
+
+      unlock(proof: proof, options: unlock_options)
+      wait_for_transfer(receipt.id)
+    end
+
+    # ==================== Lifecycle ====================
+
+    # Health check
+    def health_check
+      response = get("/health")
+      response["status"] == "healthy"
+    rescue StandardError
+      false
+    end
+
+    # Close the client
+    def close
+      @closed = true
+      @conn.close if @conn.respond_to?(:close)
+    end
+
+    private
+
+    def get(path, params = {})
+      execute { @conn.get(path, params).body }
+    end
+
+    def post(path, body)
+      execute { @conn.post(path, body).body }
+    end
+
+    def execute
+      raise ClientClosedError, "Client has been closed" if @closed
+
+      last_error = nil
+      @config.retries.times do |attempt|
+        begin
+          response = yield
+          check_error(response) if response.is_a?(Hash)
+          return response
+        rescue StandardError => e
+          last_error = e
+          sleep(2**attempt) if attempt < @config.retries - 1
+        end
+      end
+      raise last_error
+    end
+
+    def check_error(response)
+      return unless response["error"] || (response["code"] && response["message"])
+
+      message = response["message"] || response["error"] || "Unknown error"
+      code = response["code"]
+      status = response["status_code"] || 0
+      raise HttpError.new(message, status_code: status, code: code)
+    end
+
+    def encode(str)
+      URI.encode_www_form_component(str)
+    end
+
+    # Parsing methods
+
+    def parse_chain(data)
+      return nil unless data
+
+      Chain.new(
+        id: data["id"],
+        name: data["name"],
+        chain_id: data["chain_id"],
+        rpc_url: data["rpc_url"],
+        explorer_url: data["explorer_url"],
+        native_currency: data["native_currency"] ? NativeCurrency.new(
+          name: data["native_currency"]["name"],
+          symbol: data["native_currency"]["symbol"],
+          decimals: data["native_currency"]["decimals"]
+        ) : nil,
+        confirmations: data["confirmations"],
+        estimated_block_time: data["estimated_block_time"],
+        supported: data["supported"]
+      )
+    end
+
+    def parse_asset(data)
+      return nil unless data
+
+      Asset.new(
+        id: data["id"],
+        symbol: data["symbol"],
+        name: data["name"],
+        type: data["type"],
+        chain: data["chain"],
+        contract_address: data["contract_address"],
+        decimals: data["decimals"],
+        logo_url: data["logo_url"],
+        verified: data["verified"]
+      )
+    end
+
+    def parse_wrapped_asset(data)
+      return nil unless data
+
+      WrappedAsset.new(
+        original_asset: parse_asset(data["original_asset"]),
+        wrapped_asset: parse_asset(data["wrapped_asset"]),
+        chain: data["chain"],
+        bridge_contract: data["bridge_contract"]
+      )
+    end
+
+    def parse_lock_receipt(data)
+      return nil unless data
+
+      LockReceipt.new(
+        id: data["id"],
+        tx_hash: data["tx_hash"],
+        source_chain: data["source_chain"],
+        target_chain: data["target_chain"],
+        asset: parse_asset(data["asset"]),
+        amount: data["amount"],
+        sender: data["sender"],
+        recipient: data["recipient"],
+        lock_timestamp: data["lock_timestamp"],
+        confirmations: data["confirmations"],
+        required_confirmations: data["required_confirmations"]
+      )
+    end
+
+    def parse_lock_proof(data)
+      return nil unless data
+
+      LockProof.new(
+        lock_receipt: parse_lock_receipt(data["lock_receipt"]),
+        merkle_proof: data["merkle_proof"],
+        block_header: data["block_header"],
+        signatures: (data["signatures"] || []).map do |s|
+          ValidatorSignature.new(
+            validator: s["validator"],
+            signature: s["signature"],
+            timestamp: s["timestamp"]
+          )
+        end
+      )
+    end
+
+    def parse_burn_receipt(data)
+      return nil unless data
+
+      BurnReceipt.new(
+        id: data["id"],
+        tx_hash: data["tx_hash"],
+        source_chain: data["source_chain"],
+        target_chain: data["target_chain"],
+        wrapped_asset: parse_asset(data["wrapped_asset"]),
+        original_asset: parse_asset(data["original_asset"]),
+        amount: data["amount"],
+        sender: data["sender"],
+        recipient: data["recipient"],
+        burn_timestamp: data["burn_timestamp"],
+        confirmations: data["confirmations"],
+        required_confirmations: data["required_confirmations"]
+      )
+    end
+
+    def parse_burn_proof(data)
+      return nil unless data
+
+      BurnProof.new(
+        burn_receipt: parse_burn_receipt(data["burn_receipt"]),
+        merkle_proof: data["merkle_proof"],
+        block_header: data["block_header"],
+        signatures: (data["signatures"] || []).map do |s|
+          ValidatorSignature.new(
+            validator: s["validator"],
+            signature: s["signature"],
+            timestamp: s["timestamp"]
+          )
+        end
+      )
+    end
+
+    def parse_transfer(data)
+      return nil unless data
+
+      Transfer.new(
+        id: data["id"],
+        direction: data["direction"],
+        status: data["status"],
+        source_chain: data["source_chain"],
+        target_chain: data["target_chain"],
+        asset: parse_asset(data["asset"]),
+        amount: data["amount"],
+        sender: data["sender"],
+        recipient: data["recipient"],
+        source_tx_hash: data["source_tx_hash"],
+        target_tx_hash: data["target_tx_hash"],
+        fee: data["fee"],
+        fee_asset: parse_asset(data["fee_asset"]),
+        created_at: data["created_at"],
+        updated_at: data["updated_at"],
+        completed_at: data["completed_at"],
+        error_message: data["error_message"]
+      )
+    end
+
+    def parse_fee_estimate(data)
+      return nil unless data
+
+      FeeEstimate.new(
+        bridge_fee: data["bridge_fee"],
+        gas_fee_source: data["gas_fee_source"],
+        gas_fee_target: data["gas_fee_target"],
+        total_fee: data["total_fee"],
+        fee_asset: parse_asset(data["fee_asset"]),
+        estimated_time: data["estimated_time"],
+        exchange_rate: data["exchange_rate"]
+      )
+    end
+
+    def parse_exchange_rate(data)
+      return nil unless data
+
+      ExchangeRate.new(
+        from_asset: parse_asset(data["from_asset"]),
+        to_asset: parse_asset(data["to_asset"]),
+        rate: data["rate"],
+        inverse_rate: data["inverse_rate"],
+        last_updated: data["last_updated"],
+        source: data["source"]
+      )
+    end
+
+    def parse_signed_transaction(data)
+      return nil unless data
+
+      SignedTransaction.new(
+        tx_hash: data["tx_hash"],
+        chain: data["chain"],
+        from: data["from"],
+        to: data["to"],
+        value: data["value"],
+        data: data["data"],
+        gas_limit: data["gas_limit"],
+        gas_price: data["gas_price"],
+        max_fee_per_gas: data["max_fee_per_gas"],
+        max_priority_fee_per_gas: data["max_priority_fee_per_gas"],
+        nonce: data["nonce"],
+        signature: data["signature"]
+      )
+    end
+
+    # Conversion methods
+
+    def proof_to_hash(proof)
+      {
+        lock_receipt: lock_receipt_to_hash(proof.lock_receipt),
+        merkle_proof: proof.merkle_proof,
+        block_header: proof.block_header,
+        signatures: proof.signatures.map { |s| signature_to_hash(s) }
+      }
+    end
+
+    def lock_receipt_to_hash(receipt)
+      {
+        id: receipt.id,
+        tx_hash: receipt.tx_hash,
+        source_chain: receipt.source_chain,
+        target_chain: receipt.target_chain,
+        asset: asset_to_hash(receipt.asset),
+        amount: receipt.amount,
+        sender: receipt.sender,
+        recipient: receipt.recipient,
+        lock_timestamp: receipt.lock_timestamp,
+        confirmations: receipt.confirmations,
+        required_confirmations: receipt.required_confirmations
+      }
+    end
+
+    def burn_proof_to_hash(proof)
+      {
+        burn_receipt: burn_receipt_to_hash(proof.burn_receipt),
+        merkle_proof: proof.merkle_proof,
+        block_header: proof.block_header,
+        signatures: proof.signatures.map { |s| signature_to_hash(s) }
+      }
+    end
+
+    def burn_receipt_to_hash(receipt)
+      {
+        id: receipt.id,
+        tx_hash: receipt.tx_hash,
+        source_chain: receipt.source_chain,
+        target_chain: receipt.target_chain,
+        wrapped_asset: asset_to_hash(receipt.wrapped_asset),
+        original_asset: asset_to_hash(receipt.original_asset),
+        amount: receipt.amount,
+        sender: receipt.sender,
+        recipient: receipt.recipient,
+        burn_timestamp: receipt.burn_timestamp,
+        confirmations: receipt.confirmations,
+        required_confirmations: receipt.required_confirmations
+      }
+    end
+
+    def asset_to_hash(asset)
+      return nil unless asset
+
+      {
+        id: asset.id,
+        symbol: asset.symbol,
+        name: asset.name,
+        type: asset.type,
+        chain: asset.chain,
+        contract_address: asset.contract_address,
+        decimals: asset.decimals,
+        logo_url: asset.logo_url,
+        verified: asset.verified
+      }
+    end
+
+    def signature_to_hash(sig)
+      {
+        validator: sig.validator,
+        signature: sig.signature,
+        timestamp: sig.timestamp
+      }
+    end
+  end
+end
diff --git a/sdk/ruby/lib/synor_bridge/types.rb b/sdk/ruby/lib/synor_bridge/types.rb
new file mode 100644
index 0000000..23cab8a
--- /dev/null
+++ b/sdk/ruby/lib/synor_bridge/types.rb
@@ -0,0 +1,264 @@
+# frozen_string_literal: true
+
+module SynorBridge
+  # Chain identifiers
+  module ChainId
+    SYNOR = "synor"
+    ETHEREUM = "ethereum"
+    POLYGON = "polygon"
+    ARBITRUM = "arbitrum"
+    OPTIMISM = "optimism"
+    BSC = "bsc"
+    AVALANCHE = "avalanche"
+    SOLANA = "solana"
+    COSMOS = "cosmos"
+  end
+
+  # Asset types
+  module AssetType
+    NATIVE = "native"
+    ERC20 = "erc20"
+    ERC721 = "erc721"
+    ERC1155 = "erc1155"
+  end
+
+  # Transfer status
+  module TransferStatus
+    PENDING = "pending"
+    LOCKED = "locked"
+    CONFIRMING = "confirming"
+    MINTING = "minting"
+    COMPLETED = "completed"
+    FAILED = "failed"
+    REFUNDED = "refunded"
+  end
+
+  # Transfer direction
+  module TransferDirection
+    LOCK_MINT = "lock_mint"
+    BURN_UNLOCK = "burn_unlock"
+  end
+
+  # Native currency
+  NativeCurrency = Struct.new(
+    :name,
+    :symbol,
+    :decimals,
+    keyword_init: true
+  )
+
+  # Chain
+  Chain = Struct.new(
+    :id,
+    :name,
+    :chain_id,
+    :rpc_url,
+    :explorer_url,
+    :native_currency,
+    :confirmations,
+    :estimated_block_time,
+    :supported,
+    keyword_init: true
+  )
+
+  # Asset
+  Asset = Struct.new(
+    :id,
+    :symbol,
+    :name,
+    :type,
+    :chain,
+    :contract_address,
+    :decimals,
+    :logo_url,
+    :verified,
+    keyword_init: true
+  )
+
+  # Wrapped asset
+  WrappedAsset = Struct.new(
+    :original_asset,
+    :wrapped_asset,
+    :chain,
+    :bridge_contract,
+    keyword_init: true
+  )
+
+  # Validator signature
+  ValidatorSignature = Struct.new(
+    :validator,
+    :signature,
+    :timestamp,
+    keyword_init: true
+  )
+
+  # Lock receipt
+  LockReceipt = Struct.new(
+    :id,
+    :tx_hash,
+    :source_chain,
+    :target_chain,
+    :asset,
+    :amount,
+    :sender,
+    :recipient,
+    :lock_timestamp,
+    :confirmations,
+    :required_confirmations,
+    keyword_init: true
+  )
+
+  # Lock proof
+  LockProof = Struct.new(
+    :lock_receipt,
+    :merkle_proof,
+    :block_header,
+    :signatures,
+    keyword_init: true
+  )
+
+  # Burn receipt
+  BurnReceipt = Struct.new(
+    :id,
+    :tx_hash,
+    :source_chain,
+    :target_chain,
+    :wrapped_asset,
+    :original_asset,
+    :amount,
+    :sender,
+    :recipient,
+    :burn_timestamp,
+    :confirmations,
+    :required_confirmations,
+    keyword_init: true
+  )
+
+  # Burn proof
+  BurnProof = Struct.new(
+    :burn_receipt,
+    :merkle_proof,
+    :block_header,
+    :signatures,
+    keyword_init: true
+  )
+
+  # Transfer
+  Transfer = Struct.new(
+    :id,
+    :direction,
+    :status,
+    :source_chain,
+    :target_chain,
+    :asset,
+    :amount,
+    :sender,
+    :recipient,
+    :source_tx_hash,
+    :target_tx_hash,
+    :fee,
+    :fee_asset,
+    :created_at,
+    :updated_at,
+    :completed_at,
+    :error_message,
+    keyword_init: true
+  )
+
+  # Fee estimate
+  FeeEstimate = Struct.new(
+    :bridge_fee,
+    :gas_fee_source,
+    :gas_fee_target,
+    :total_fee,
+    :fee_asset,
+    :estimated_time,
+    :exchange_rate,
+    keyword_init: true
+  )
+
+  # Exchange rate
+  ExchangeRate = Struct.new(
+    :from_asset,
+    :to_asset,
+    :rate,
+    :inverse_rate,
+    :last_updated,
+    :source,
+    keyword_init: true
+  )
+
+  # Signed transaction
+  SignedTransaction = Struct.new(
+    :tx_hash,
+    :chain,
+    :from,
+    :to,
+    :value,
+    :data,
+    :gas_limit,
+    :gas_price,
+    :max_fee_per_gas,
+    :max_priority_fee_per_gas,
+    :nonce,
+    :signature,
+    keyword_init: true
+  )
+
+  # Lock options
+  LockOptions = Struct.new(
+    :recipient,
+    :deadline,
+    :slippage,
+    keyword_init: true
+  )
+
+  # Mint options
+  MintOptions = Struct.new(
+    :gas_limit,
+    :max_fee_per_gas,
+    :max_priority_fee_per_gas,
+    keyword_init: true
+  )
+
+  # Burn options
+  BurnOptions = Struct.new(
+    :recipient,
+    :deadline,
+    keyword_init: true
+  )
+
+  # Unlock options
+  UnlockOptions = Struct.new(
+    :gas_limit,
+    :gas_price,
+    keyword_init: true
+  )
+
+  # Transfer filter
+  TransferFilter = Struct.new(
+    :status,
+    :source_chain,
+    :target_chain,
+    :asset,
+    :sender,
+    :recipient,
+    :limit,
+    :offset,
+    keyword_init: true
+  )
+
+  # Bridge config
+  BridgeConfig = Struct.new(
+    :api_key,
+    :endpoint,
+    :timeout,
+    :retries,
+    :debug,
+    keyword_init: true
+  ) do
+    def initialize(api_key:, endpoint: "https://bridge.synor.io/v1", timeout: 60, retries: 3, debug: false)
+      super(api_key: api_key, endpoint: endpoint, timeout: timeout, retries: retries, debug: debug)
+    end
+  end
+end
diff --git a/sdk/ruby/lib/synor_bridge/version.rb b/sdk/ruby/lib/synor_bridge/version.rb
new file mode 100644
index 0000000..354bb94
--- /dev/null
+++ b/sdk/ruby/lib/synor_bridge/version.rb
@@ -0,0 +1,5 @@
+# frozen_string_literal: true
+
+module SynorBridge
+  VERSION = "0.1.0"
+end
diff --git a/sdk/ruby/lib/synor_database.rb b/sdk/ruby/lib/synor_database.rb
new file mode 100644
index 0000000..bd45720
--- /dev/null
+++ b/sdk/ruby/lib/synor_database.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+require_relative "synor_database/version"
+require_relative "synor_database/types"
+require_relative "synor_database/client"
+
+module SynorDatabase
+  class Error < StandardError; end
+  class ClientClosedError < Error; end
+  class HttpError < Error
+    attr_reader :status_code, :code
+
+    def initialize(message, status_code: 0, code: nil)
+      super(message)
+      @status_code = status_code
+      @code = code
+    end
+  end
+end
diff --git a/sdk/ruby/lib/synor_database/client.rb b/sdk/ruby/lib/synor_database/client.rb
new file mode 100644
index 0000000..a21b42f
--- /dev/null
+++ b/sdk/ruby/lib/synor_database/client.rb
@@ -0,0 +1,206 @@
+# frozen_string_literal: true
+
+require "faraday"
+require "json"
+require "cgi"
+
+module SynorDatabase
+  # Synor Database SDK Client
+  #
+  # @example
+  #   client = SynorDatabase::Client.new(api_key: 'your-api-key')
+  #
+  #   # Key-Value operations
+  #   client.kv.set("key", "value")
+  #   value = client.kv.get("key")
+  #
+  #   # Document operations
+  #   id = client.documents.create("users", { name: "Alice" })
+  #   doc = client.documents.get("users", id)
+  #
+  class Client
+    attr_reader :config, :kv, :documents, :vectors, :timeseries
+
+    def initialize(api_key: nil, **options)
+      @config = Config.new(api_key: api_key, **options)
+      raise ArgumentError, "API key is required" unless @config.api_key
+
+      @conn = Faraday.new(url: @config.base_url) do |f|
+        f.request :json
+        f.response :json
+        f.options.timeout = @config.timeout
+        f.headers["Authorization"] = "Bearer #{@config.api_key}"
+        f.headers["X-SDK-Version"] = "ruby/#{VERSION}"
+      end
+      @closed = false
+
+      @kv = KeyValueStore.new(self)
+      @documents = DocumentStore.new(self)
+      @vectors = VectorStore.new(self)
+      @timeseries = TimeSeriesStore.new(self)
+    end
+
+    def closed?
+      @closed
+    end
+
+    def close
+      @closed = true
+    end
+
+    def health_check
+      response = request(:get, "/health")
+      response["status"] == "healthy"
+    rescue StandardError
+      false
+    end
+
+    # Key-Value Store
+    class KeyValueStore
+      def initialize(client)
+        @client = client
+      end
+
+      def get(key)
+        response = @client.request(:get, "/kv/#{CGI.escape(key)}")
+        response["value"]
+      end
+
+      def set(key, value, ttl: nil)
+        body = { key: key, value: value }
+        body[:ttl] = ttl if ttl
+        @client.request(:put, "/kv/#{CGI.escape(key)}", body)
+      end
+
+      def delete(key)
+        @client.request(:delete, "/kv/#{CGI.escape(key)}")
+      end
+
+      def list(prefix)
+        response = @client.request(:get, "/kv?prefix=#{CGI.escape(prefix)}")
+        (response["items"] || []).map { |h| KeyValue.from_hash(h) }
+      end
+    end
+
+    # Document Store
+    class DocumentStore
+      def initialize(client)
+        @client = client
+      end
+
+      def create(collection, document)
+        response = @client.request(:post, "/collections/#{CGI.escape(collection)}/documents", document)
+        response["id"]
+      end
+
+      def get(collection, id)
+        response = @client.request(:get, "/collections/#{CGI.escape(collection)}/documents/#{CGI.escape(id)}")
+        Document.from_hash(response)
+      end
+
+      def update(collection, id, update)
+        @client.request(:patch, "/collections/#{CGI.escape(collection)}/documents/#{CGI.escape(id)}", update)
+      end
+
+      def delete(collection, id)
+        @client.request(:delete, "/collections/#{CGI.escape(collection)}/documents/#{CGI.escape(id)}")
+      end
+
+      def query(collection, query)
+        body = query.to_h.compact
+        response = @client.request(:post, "/collections/#{CGI.escape(collection)}/query", body)
+        (response["documents"] || []).map { |h| Document.from_hash(h) }
+      end
+    end
+
+    # Vector Store
+    class VectorStore
+      def initialize(client)
+        @client = client
+      end
+
+      def upsert(collection, vectors)
+        entries = vectors.map { |v| v.is_a?(Hash) ? v : v.to_h }
+        @client.request(:post, "/vectors/#{CGI.escape(collection)}/upsert", { vectors: entries })
+      end
+
+      def search(collection, vector, k)
+        response = @client.request(:post, "/vectors/#{CGI.escape(collection)}/search", { vector: vector, k: k })
+        (response["results"] || []).map { |h| SearchResult.from_hash(h) }
+      end
+
+      def delete(collection, ids)
+        @client.request(:delete, "/vectors/#{CGI.escape(collection)}", { ids: ids })
+      end
+    end
+
+    # Time Series Store
+    class TimeSeriesStore
+      def initialize(client)
+        @client = client
+      end
+
+      def write(series, points)
+        entries = points.map { |p| p.is_a?(Hash) ? p : p.to_h }
+        @client.request(:post, "/timeseries/#{CGI.escape(series)}/write", { points: entries })
+      end
+
+      def query(series, range, aggregation: nil)
+        body = { range: range.to_h }
+        body[:aggregation] = aggregation.to_h if aggregation
+        response = @client.request(:post, "/timeseries/#{CGI.escape(series)}/query", body)
+        (response["points"] || []).map { |h| DataPoint.from_hash(h) }
+      end
+    end
+
+    # Internal request method
+    def request(method, path, body = nil)
+      check_closed!
+
+      with_retry do
+        response = case method
+                   when :get then @conn.get(path)
+                   when :post then @conn.post(path, body)
+                   when :put then @conn.put(path, body)
+                   when :patch then @conn.patch(path, body)
+                   when :delete
+                     if body
+                       @conn.delete(path) { |req| req.body = body.to_json }
+                     else
+                       @conn.delete(path)
+                     end
+                   end
+
+        raise_on_error(response) unless response.success?
+        response.body || {}
+      end
+    end
+
+    private
+
+    def check_closed!
+      raise ClientClosedError, "Client has been closed" if @closed
+    end
+
+    def with_retry
+      last_error = nil
+      @config.retries.times do |attempt|
+        begin
+          return yield
+        rescue StandardError => e
+          last_error = e
+          puts "Attempt #{attempt + 1} failed: #{e.message}" if @config.debug
+          sleep(2**attempt) if attempt < @config.retries - 1
+        end
+      end
+      raise last_error
+    end
+
+    def raise_on_error(response)
+      body = response.body || {}
+      message = body["message"] || "HTTP #{response.status}"
+      code = body["code"]
+      raise HttpError.new(message, status_code: response.status, code: code)
+    end
+  end
+end
diff --git a/sdk/ruby/lib/synor_database/types.rb b/sdk/ruby/lib/synor_database/types.rb
new file mode 100644
index 0000000..1758e03
--- /dev/null
+++ b/sdk/ruby/lib/synor_database/types.rb
@@ -0,0 +1,71 @@
+# frozen_string_literal: true
+
+module SynorDatabase
+  # Configuration for the database client
+  Config = Struct.new(:api_key, :base_url, :timeout, :retries, :debug, keyword_init: true) do
+    def initialize(api_key:, base_url: "https://db.synor.io/v1", timeout: 60, retries: 3, debug: false)
+      super(api_key: api_key, base_url: base_url, timeout: timeout, retries: retries, debug: debug)
+    end
+  end
+
+  # A key-value entry
+  KeyValue = Struct.new(:key, :value, :ttl, :created_at, :updated_at, keyword_init: true) do
+    def self.from_hash(hash)
+      new(
+        key: hash["key"],
+        value: hash["value"],
+        ttl: hash["ttl"],
+        created_at: hash["created_at"],
+        updated_at: hash["updated_at"]
+      )
+    end
+  end
+
+  # A document
+  Document = Struct.new(:id, :collection, :data, :created_at, :updated_at, keyword_init: true) do
+    def self.from_hash(hash)
+      new(
+        id: hash["id"],
+        collection: hash["collection"],
+        data: hash["data"],
+        created_at: hash["created_at"],
+        updated_at: hash["updated_at"]
+      )
+    end
+  end
+
+  # Query parameters for documents
+  Query = Struct.new(:filter, :sort, :limit, :offset, :projection, keyword_init: true)
+
+  # A vector entry
+  VectorEntry = Struct.new(:id, :vector, :metadata, keyword_init: true)
+
+  # A search result
+  SearchResult = Struct.new(:id, :score, :vector, :metadata, keyword_init: true) do
+    def self.from_hash(hash)
+      new(
+        id: hash["id"],
+        score: hash["score"],
+        vector: hash["vector"],
+        metadata: hash["metadata"]
+      )
+    end
+  end
+
+  # A time series data point
+  DataPoint = Struct.new(:timestamp, :value, :tags, keyword_init: true) do
+    def self.from_hash(hash)
+      new(
+        timestamp: hash["timestamp"],
+        value: hash["value"],
+        tags: hash["tags"]
+      )
+    end
+  end
+
+  # Time range for queries
+  TimeRange = Struct.new(:start, :end, keyword_init: true)
+
+  # Aggregation settings
+  Aggregation = Struct.new(:function, :interval, keyword_init: true)
+end
diff --git a/sdk/ruby/lib/synor_database/version.rb b/sdk/ruby/lib/synor_database/version.rb
new file mode 100644
index 0000000..2aa6225
--- /dev/null
+++ b/sdk/ruby/lib/synor_database/version.rb
@@ -0,0 +1,5 @@
+# frozen_string_literal: true
+
+module SynorDatabase
+  VERSION = "0.1.0"
+end
diff --git a/sdk/ruby/lib/synor_hosting.rb b/sdk/ruby/lib/synor_hosting.rb
new file mode 100644
index 0000000..2b94615
--- /dev/null
+++ b/sdk/ruby/lib/synor_hosting.rb
@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+require_relative "synor_hosting/version"
+require_relative "synor_hosting/types"
+require_relative "synor_hosting/client"
+
+module SynorHosting
+  class Error < StandardError; end
+  class ClientClosedError < Error; end
+  class HttpError < Error
+    attr_reader :status_code, :code
+    def initialize(message, status_code: 0, code: nil)
+      super(message)
+      @status_code = status_code
+      @code = code
+    end
+  end
+end
diff --git a/sdk/ruby/lib/synor_hosting/client.rb b/sdk/ruby/lib/synor_hosting/client.rb
new file mode 100644
index 0000000..7697ef8
--- /dev/null
+++ b/sdk/ruby/lib/synor_hosting/client.rb
@@ -0,0 +1,357 @@
+# frozen_string_literal: true
+
+require "faraday"
+require "json"
+require "uri"
+
+module SynorHosting
+  # Synor Hosting SDK client for Ruby.
+  # Provides domain management, DNS, deployments, SSL, and analytics.
+  class Client
+    attr_reader :closed
+
+    def initialize(config)
+      @config = config
+      @closed = false
+      @conn = Faraday.new(url: config.endpoint) do |f|
+        f.request :json
+        f.response :json
+        f.options.timeout = config.timeout
+        f.headers["Authorization"] = "Bearer #{config.api_key}"
+        f.headers["Content-Type"] = "application/json"
+        f.headers["X-SDK-Version"] = "ruby/#{VERSION}"
+      end
+    end
+
+    # ==================== Domain Operations ====================
+
+    # Register a new domain
+    def register_domain(name, auto_renew: true)
+      body = { name: name, auto_renew: auto_renew }
+      response = post("/domains", body)
+      parse_domain(response)
+    end
+
+    # Get domain details
+    def get_domain(name)
+      response = get("/domains/#{encode(name)}")
+      parse_domain(response)
+    end
+
+    # Resolve domain to its record
+    def resolve_domain(name)
+      response = get("/domains/#{encode(name)}/resolve")
+      DomainRecord.new(
+        cid: response["cid"],
+        ttl: response["ttl"],
+        updated_at: response["updated_at"]
+      )
+    end
+
+    # Update domain record
+    def update_domain(name, cid:, ttl: nil)
+      body = { cid: cid }
+      body[:ttl] = ttl if ttl
+      response = put("/domains/#{encode(name)}", body)
+      parse_domain(response)
+    end
+
+    # Transfer domain ownership
+    def transfer_domain(name, new_owner)
+      body = { new_owner: new_owner }
+      response = post("/domains/#{encode(name)}/transfer", body)
+      parse_domain(response)
+    end
+
+    # List domains
+    def list_domains(limit: nil, offset: nil)
+      params = {}
+      params[:limit] = limit if limit
+      params[:offset] = offset if offset
+      response = get("/domains", params)
+      (response["domains"] || []).map { |d| parse_domain(d) }
+    end
+
+    # ==================== DNS Operations ====================
+
+    # Set DNS records for a domain
+    def set_dns_records(domain, records)
+      body = { records: records.map { |r| record_to_hash(r) } }
+      response = put("/domains/#{encode(domain)}/dns", body)
+      (response["records"] || []).map { |r| parse_dns_record(r) }
+    end
+
+    # Get DNS records for a domain
+    def get_dns_records(domain)
+      response = get("/domains/#{encode(domain)}/dns")
+      (response["records"] || []).map { |r| parse_dns_record(r) }
+    end
+
+    # Add a single DNS record
+    def add_dns_record(domain, record)
+      body = record_to_hash(record)
+      response = post("/domains/#{encode(domain)}/dns", body)
+      parse_dns_record(response)
+    end
+
+    # Delete a DNS record
+    def delete_dns_record(domain, record_type, name)
+      delete("/domains/#{encode(domain)}/dns/#{record_type}/#{encode(name)}")
+      nil
+    end
+
+    # ==================== Deployment Operations ====================
+
+    # Deploy content to a domain
+    def deploy(cid, domain, options = {})
+      body = { cid: cid, domain: domain }
+      body[:build_command] = options[:build_command] if options[:build_command]
+      body[:env_vars] = options[:env_vars] if options[:env_vars]
+      response = post("/deployments", body)
+      parse_deployment(response)
+    end
+
+    # Get deployment details
+    def get_deployment(id)
+      response = get("/deployments/#{encode(id)}")
+      parse_deployment(response)
+    end
+
+    # List deployments
+    def list_deployments(domain: nil, limit: nil, offset: nil)
+      params = {}
+      params[:domain] = domain if domain
+      params[:limit] = limit if limit
+      params[:offset] = offset if offset
+      response = get("/deployments", params)
+      (response["deployments"] || []).map { |d| parse_deployment(d) }
+    end
+
+    # Wait for deployment to complete
+    def wait_for_deployment(id, poll_interval: 5, max_wait: 600)
+      deadline = Time.now + max_wait
+      final_statuses = [DeploymentStatus::ACTIVE, DeploymentStatus::FAILED, DeploymentStatus::ROLLED_BACK]
+
+      while Time.now < deadline
+        deployment = get_deployment(id)
+        return deployment if final_statuses.include?(deployment.status)
+        sleep(poll_interval)
+      end
+
+      raise Error, "Timeout waiting for deployment"
+    end
+
+    # Rollback deployment
+    def rollback(domain, deployment_id)
+      body = { deployment_id: deployment_id }
+      response = post("/domains/#{encode(domain)}/rollback", body)
+      parse_deployment(response)
+    end
+
+    # ==================== SSL Operations ====================
+
+    # Provision SSL certificate for a domain
+    def provision_ssl(domain)
+      response = post("/domains/#{encode(domain)}/ssl", {})
+      parse_certificate(response)
+    end
+
+    # Get SSL certificate for a domain
+    def get_certificate(domain)
+      response = get("/domains/#{encode(domain)}/ssl")
+      parse_certificate(response)
+    end
+
+    # Renew SSL certificate
+    def renew_certificate(domain)
+      response = post("/domains/#{encode(domain)}/ssl/renew", {})
+      parse_certificate(response)
+    end
+
+    # ==================== Analytics Operations ====================
+
+    # Get analytics for a domain
+    def get_analytics(domain, start_time:, end_time:)
+      params = { start: start_time.to_i, end: end_time.to_i }
+      response = get("/domains/#{encode(domain)}/analytics", params)
+      parse_analytics(response)
+    end
+
+    # Get bandwidth stats
+    def get_bandwidth(domain, start_time:, end_time:)
+      params = { start: start_time.to_i, end: end_time.to_i }
+      response = get("/domains/#{encode(domain)}/analytics/bandwidth", params)
+      BandwidthStats.new(
+        total_bytes: response["total_bytes"],
+        cached_bytes: response["cached_bytes"],
+        uncached_bytes: response["uncached_bytes"]
+      )
+    end
+
+    # ==================== Lifecycle ====================
+
+    # Health check
+    def health_check
+      response = get("/health")
+      response["status"] == "healthy"
+    rescue StandardError
+      false
+    end
+
+    # Close the client
+    def close
+      @closed = true
+      @conn.close if @conn.respond_to?(:close)
+    end
+
+    private
+
+    def get(path, params = {})
+      execute { @conn.get(path, params).body }
+    end
+
+    def post(path, body)
+      execute { @conn.post(path, body).body }
+    end
+
+    def put(path, body)
+      execute { @conn.put(path, body).body }
+    end
+
+    def delete(path)
+      execute { @conn.delete(path).body }
+    end
+
+    def execute
+      raise ClientClosedError, "Client has been closed" if @closed
+
+      last_error = nil
+      @config.retries.times do |attempt|
+        begin
+          response = yield
+          check_error(response) if response.is_a?(Hash)
+          return response
+        rescue StandardError => e
+          last_error = e
+          sleep(2**attempt) if attempt < @config.retries - 1
+        end
+      end
+      raise last_error
+    end
+
+    def check_error(response)
+      return unless response["error"] || response["code"]
+
+      message = response["message"] || response["error"] || "Unknown error"
+      code = response["code"]
+      status = response["status_code"] || 0
+      raise HttpError.new(message, status_code: status, code: code)
+    end
+
+    def encode(str)
+      URI.encode_www_form_component(str)
+    end
+
+    def record_to_hash(record)
+      hash = {
+        type: record.type,
+        name: record.name,
+        value: record.value,
+        ttl: record.ttl
+      }
+      hash[:priority] = record.priority if record.priority
+      hash
+    end
+
+    def parse_domain(data)
+      return nil unless data
+
+      Domain.new(
+        name: data["name"],
+        owner: data["owner"],
+        status: data["status"],
+        record: data["record"] ? DomainRecord.new(
+          cid: data["record"]["cid"],
+          ttl: data["record"]["ttl"],
+          updated_at: data["record"]["updated_at"]
+        ) : nil,
+        expires_at: data["expires_at"],
+        created_at: data["created_at"],
+        auto_renew: data["auto_renew"]
+      )
+    end
+
+    def parse_dns_record(data)
+      return nil unless data
+
+      DnsRecord.new(
+        type: data["type"],
+        name: data["name"],
+        value: data["value"],
+        ttl: data["ttl"],
+        priority: data["priority"]
+      )
+    end
+
+    def parse_deployment(data)
+      return nil unless data
+
+      Deployment.new(
+        id: data["id"],
+        domain: data["domain"],
+        cid: data["cid"],
+        status: data["status"],
+        url: data["url"],
+        created_at: data["created_at"],
+        deployed_at: data["deployed_at"],
+        build_logs: data["build_logs"],
+        error_message: data["error_message"]
+      )
+    end
+
+    def parse_certificate(data)
+      return nil unless data
+
+      Certificate.new(
+        domain: data["domain"],
+        status: data["status"],
+        issuer: data["issuer"],
+        issued_at: data["issued_at"],
+        expires_at: data["expires_at"],
+        auto_renew: data["auto_renew"],
+        fingerprint: data["fingerprint"]
+      )
+    end
+
+    def parse_analytics(data)
+      return nil unless data
+
+      Analytics.new(
+        domain: data["domain"],
+        time_range: AnalyticsTimeRange.new(
+          start_time: data["time_range"]&.dig("start"),
+          end_time: data["time_range"]&.dig("end")
+        ),
+        requests: data["requests"] ? RequestStats.new(
+          total: data["requests"]["total"],
+          success: data["requests"]["success"],
+          error: data["requests"]["error"],
+          cached: data["requests"]["cached"]
+        ) : nil,
+        bandwidth: data["bandwidth"] ? BandwidthStats.new(
+          total_bytes: data["bandwidth"]["total_bytes"],
+          cached_bytes: data["bandwidth"]["cached_bytes"],
+          uncached_bytes: data["bandwidth"]["uncached_bytes"]
+        ) : nil,
+        visitors: data["visitors"],
+        page_views: data["page_views"],
+        top_paths: (data["top_paths"] || []).map do |p|
+          PathStats.new(path: p["path"], requests: p["requests"], bandwidth: p["bandwidth"])
+        end,
+        geo_distribution: (data["geo_distribution"] || []).map do |g|
+          GeoStats.new(country: g["country"], requests: g["requests"], bandwidth: g["bandwidth"])
+        end
+      )
+    end
+  end
+end
diff --git a/sdk/ruby/lib/synor_hosting/types.rb b/sdk/ruby/lib/synor_hosting/types.rb
new file mode 100644
index 0000000..e1b0685
--- /dev/null
+++ b/sdk/ruby/lib/synor_hosting/types.rb
@@ -0,0 +1,170 @@
+# frozen_string_literal: true
+
+module SynorHosting
+  # Domain status
+  module DomainStatus
+    PENDING = "pending"
+    ACTIVE = "active"
+    SUSPENDED = "suspended"
+    EXPIRED = "expired"
+  end
+
+  # DNS record types
+  module DnsRecordType
+    A = "A"
+    AAAA = "AAAA"
+    CNAME = "CNAME"
+    TXT = "TXT"
+    MX = "MX"
+    NS = "NS"
+    SRV = "SRV"
+  end
+
+  # Deployment status
+  module DeploymentStatus
+    PENDING = "pending"
+    BUILDING = "building"
+    DEPLOYING = "deploying"
+    ACTIVE = "active"
+    FAILED = "failed"
+    ROLLED_BACK = "rolled_back"
+  end
+
+  # Certificate status
+  module CertificateStatus
+    PENDING = "pending"
+    ISSUED = "issued"
+    EXPIRED = "expired"
+    REVOKED = "revoked"
+    FAILED = "failed"
+  end
+
+  # Domain record
+  DomainRecord = Struct.new(
+    :cid,
+    :ttl,
+    :updated_at,
+    keyword_init: true
+  )
+
+  # Domain
+  Domain = Struct.new(
+    :name,
+    :owner,
+    :status,
+    :record,
+    :expires_at,
+    :created_at,
+    :auto_renew,
+    keyword_init: true
+  )
+
+  # DNS record
+  DnsRecord = Struct.new(
+    :type,
+    :name,
+    :value,
+    :ttl,
+    :priority,
+    keyword_init: true
+  )
+
+  # Deployment
+  Deployment = Struct.new(
+    :id,
+    :domain,
+    :cid,
+    :status,
+    :url,
+    :created_at,
+    :deployed_at,
+    :build_logs,
+    :error_message,
+    keyword_init: true
+  )
+
+  # Certificate
+  Certificate = Struct.new(
+    :domain,
+    :status,
+    :issuer,
+    :issued_at,
+    :expires_at,
+    :auto_renew,
+    :fingerprint,
+    keyword_init: true
+  )
+
+  # Analytics time range
+  AnalyticsTimeRange = Struct.new(
+    :start_time,
+    :end_time,
+    keyword_init: true
+  )
+
+  # Bandwidth stats
+  BandwidthStats = Struct.new(
+    :total_bytes,
+    :cached_bytes,
+    :uncached_bytes,
+    keyword_init: true
+  )
+
+  # Request stats
+  RequestStats = Struct.new(
+    :total,
+    :success,
+    :error,
+    :cached,
+    keyword_init: true
+  )
+
+  # Geographic stats
+  GeoStats = Struct.new(
+    :country,
+    :requests,
+    :bandwidth,
+    keyword_init: true
+  )
+
+  # Analytics
+  Analytics = Struct.new(
+    :domain,
+    :time_range,
+    :requests,
+    :bandwidth,
+    :visitors,
+    :page_views,
+    :top_paths,
+    :geo_distribution,
+    keyword_init: true
+  )
+
+  # Path stats
+  PathStats = Struct.new(
+    :path,
+    :requests,
+    :bandwidth,
+    keyword_init: true
+  )
+
+  # Hosting config
+  HostingConfig = Struct.new(
+    :api_key,
+    :endpoint,
+    :timeout,
+    :retries,
+    :debug,
+    keyword_init: true
+  ) do
+    def initialize(api_key:, endpoint: "https://hosting.synor.io/v1", timeout: 30, retries: 3, debug: false)
+      super(api_key: api_key, endpoint: endpoint, timeout: timeout, retries: retries, debug: debug)
+    end
+  end
+
+  # Health response
+  HealthResponse = Struct.new(
+    :status,
+    keyword_init: true
+  )
+end
diff --git a/sdk/ruby/lib/synor_hosting/version.rb b/sdk/ruby/lib/synor_hosting/version.rb
new file mode 100644
index 0000000..de7c9b0
--- /dev/null
+++ b/sdk/ruby/lib/synor_hosting/version.rb
@@ -0,0 +1,5 @@
+# frozen_string_literal: true
+
+module SynorHosting
+  VERSION = "0.1.0"
+end
diff --git a/sdk/swift/Sources/Synor/Bridge/SynorBridge.swift b/sdk/swift/Sources/Synor/Bridge/SynorBridge.swift
new file mode 100644
index 0000000..1fc09d9
--- /dev/null
+++ b/sdk/swift/Sources/Synor/Bridge/SynorBridge.swift
@@ -0,0 +1,467 @@
+import Foundation
+
+/// Synor Bridge SDK client for Swift.
+///
+/// Provides cross-chain asset transfers with lock-mint and burn-unlock patterns.
+///
+/// Example:
+/// ```swift
+/// let bridge = SynorBridge(config: BridgeConfig(apiKey: "your-api-key"))
+///
+/// // Get supported chains
+/// let chains = try await bridge.getSupportedChains()
+///
+/// // Estimate fee
+/// let fee = try await bridge.estimateFee(
+///     asset: "SYNR",
+///     amount: "1000000000000000000",
+///     sourceChain: .synor,
+///     targetChain: .ethereum
+/// )
+///
+/// // Full bridge flow
+/// let transfer = try await bridge.bridgeTo(
+///     asset: "SYNR",
+///     amount: "1000000000000000000",
+///     targetChain: .ethereum,
+///     targetAddress: "0x..."
+/// )
+/// print("Transfer completed: \(transfer.id)")
+/// ```
+public class SynorBridge {
+    private let config: BridgeConfig
+    private let session: URLSession
+    private let decoder: JSONDecoder
+    private let encoder: JSONEncoder
+    private var closed = false
+
+    private static let finalStatuses: Set<TransferStatus> = [.completed, .failed, .refunded]
+
+    public init(config: BridgeConfig) {
+        self.config = config
+
+        let sessionConfig = URLSessionConfiguration.default
+        sessionConfig.timeoutIntervalForRequest = config.timeout
+        sessionConfig.timeoutIntervalForResource = config.timeout * 2
+        self.session = URLSession(configuration: sessionConfig)
+
+        self.decoder = JSONDecoder()
+        self.encoder = JSONEncoder()
+    }
+
+    // MARK: - Chain Operations
+
+    /// Get all supported chains.
+    public func getSupportedChains() async throws -> [Chain] {
+        let response: ChainsResponse = try await get(path: "/chains")
+        return response.chains ?? []
+    }
+
+    /// Get chain details.
+    public func getChain(chainId: ChainId) async throws -> Chain {
+        return try await get(path: "/chains/\(chainId.rawValue)")
+    }
+
+    /// Check if a chain is supported.
+    public func isChainSupported(chainId: ChainId) async -> Bool {
+        do {
+            let chain = try await getChain(chainId: chainId)
+            return chain.supported
+        } catch {
+            return false
+        }
+    }
+
+    // MARK: - Asset Operations
+
+    /// Get supported assets for a chain.
+    public func getSupportedAssets(chainId: ChainId) async throws -> [Asset] {
+        let response: AssetsResponse = try await get(path: "/chains/\(chainId.rawValue)/assets")
+        return response.assets ?? []
+    }
+
+    /// Get asset details.
+    public func getAsset(assetId: String) async throws -> Asset {
+        return try await get(path: "/assets/\(assetId.urlEncoded)")
+    }
+
+    /// Get wrapped asset on a target chain.
+    public func getWrappedAsset(originalAssetId: String, targetChain: ChainId) async throws -> WrappedAsset {
+        return try await get(path: "/assets/\(originalAssetId.urlEncoded)/wrapped/\(targetChain.rawValue)")
+    }
+
+    // MARK: - Fee & Rate Operations
+
+    /// Estimate transfer fee.
+    public func estimateFee(
+        asset: String,
+        amount: String,
+        sourceChain: ChainId,
+        targetChain: ChainId
+    ) async throws -> BridgeFeeEstimate {
+        let body: [String: String] = [
+            "asset": asset,
+            "amount": amount,
+            "sourceChain": sourceChain.rawValue,
+            "targetChain": targetChain.rawValue
+        ]
+        return try await post(path: "/fees/estimate", body: body)
+    }
+
+    /// Get exchange rate between assets.
+    public func getExchangeRate(fromAsset: String, toAsset: String) async throws -> ExchangeRate {
+        return try await get(path: "/rates/\(fromAsset.urlEncoded)/\(toAsset.urlEncoded)")
+    }
+
+    // MARK: - Lock-Mint Flow
+
+    /// Lock assets on the source chain.
+    public func lock(
+        asset: String,
+        amount: String,
+        targetChain: ChainId,
+        options: LockOptions? = nil
+    ) async throws -> LockReceipt {
+        var body: [String: Any] = [
+            "asset": asset,
+            "amount": amount,
+            "targetChain": targetChain.rawValue
+        ]
+        if let recipient = options?.recipient { body["recipient"] = recipient }
+        if let deadline = options?.deadline { body["deadline"] = deadline }
+        if let slippage = options?.slippage { body["slippage"] = slippage }
+        return try await post(path: "/transfers/lock", body: body)
+    }
+
+    /// Get lock proof.
+    public func getLockProof(lockReceiptId: String) async throws -> LockProof {
+        return try await get(path: "/transfers/lock/\(lockReceiptId.urlEncoded)/proof")
+    }
+
+    /// Wait for lock proof with confirmations.
+    public func waitForLockProof(
+        lockReceiptId: String,
+        pollInterval: TimeInterval = 5,
+        maxWait: TimeInterval = 600
+    ) async throws -> LockProof {
+        let deadline = Date().addingTimeInterval(maxWait)
+
+        while Date() < deadline {
+            do {
+                return try await getLockProof(lockReceiptId: lockReceiptId)
+            } catch let error as BridgeError {
+                if error.isConfirmationsPending {
+                    try await Task.sleep(nanoseconds: UInt64(pollInterval * 1_000_000_000))
+                    continue
+                }
+                throw error
+            }
+        }
+
+        throw BridgeError.timeout("Waiting for lock proof")
+    }
+
+    /// Mint assets on the target chain.
+    public func mint(
+        proof: LockProof,
+        targetAddress: String,
+        options: MintOptions? = nil
+    ) async throws -> BridgeSignedTransaction {
+        var body: [String: Any] = [
+            "proof": try proofToDictionary(proof),
+            "targetAddress": targetAddress
+        ]
+        if let gasLimit = options?.gasLimit { body["gasLimit"] = gasLimit }
+        if let maxFeePerGas = options?.maxFeePerGas { body["maxFeePerGas"] = maxFeePerGas }
+        if let maxPriorityFeePerGas = options?.maxPriorityFeePerGas { body["maxPriorityFeePerGas"] = maxPriorityFeePerGas }
+        return try await post(path: "/transfers/mint", body: body)
+    }
+
+    // MARK: - Burn-Unlock Flow
+
+    /// Burn wrapped assets.
+    public func burn(
+        wrappedAsset: String,
+        amount: String,
+        options: BurnOptions? = nil
+    ) async throws -> BurnReceipt {
+        var body: [String: Any] = [
+            "wrappedAsset": wrappedAsset,
+            "amount": amount
+        ]
+        if let recipient = options?.recipient { body["recipient"] = recipient }
+        if let deadline = options?.deadline { body["deadline"] = deadline }
+        return try await post(path: "/transfers/burn", body: body)
+    }
+
+    /// Get burn proof.
+    public func getBurnProof(burnReceiptId: String) async throws -> BurnProof {
+        return try await get(path: "/transfers/burn/\(burnReceiptId.urlEncoded)/proof")
+    }
+
+    /// Wait for burn proof with confirmations.
+    public func waitForBurnProof(
+        burnReceiptId: String,
+        pollInterval: TimeInterval = 5,
+        maxWait: TimeInterval = 600
+    ) async throws -> BurnProof {
+        let deadline = Date().addingTimeInterval(maxWait)
+
+        while Date() < deadline {
+            do {
+                return try await getBurnProof(burnReceiptId: burnReceiptId)
+            } catch let error as BridgeError {
+                if error.isConfirmationsPending {
+                    try await Task.sleep(nanoseconds: UInt64(pollInterval * 1_000_000_000))
+                    continue
+                }
+                throw error
+            }
+        }
+
+        throw BridgeError.timeout("Waiting for burn proof")
+    }
+
+    /// Unlock original assets.
+    public func unlock(
+        proof: BurnProof,
+        options: UnlockOptions? = nil
+    ) async throws -> BridgeSignedTransaction {
+        var body: [String: Any] = [
+            "proof": try burnProofToDictionary(proof)
+        ]
+        if let gasLimit = options?.gasLimit { body["gasLimit"] = gasLimit }
+        if let gasPrice = options?.gasPrice { body["gasPrice"] = gasPrice }
+        return try await post(path: "/transfers/unlock", body: body)
+    }
+
+    // MARK: - Transfer Management
+
+    /// Get transfer details.
+    public func getTransfer(transferId: String) async throws -> Transfer {
+        return try await get(path: "/transfers/\(transferId.urlEncoded)")
+    }
+
+    /// Get transfer status.
+    public func getTransferStatus(transferId: String) async throws -> TransferStatus {
+        let transfer = try await getTransfer(transferId: transferId)
+        return transfer.status
+    }
+
+    /// List transfers with optional filter.
+    public func listTransfers(filter: TransferFilter? = nil) async throws -> [Transfer] {
+        var params: [String] = []
+        if let status = filter?.status { params.append("status=\(status.rawValue)") }
+        if let sourceChain = filter?.sourceChain { params.append("sourceChain=\(sourceChain.rawValue)") }
+        if let targetChain = filter?.targetChain { params.append("targetChain=\(targetChain.rawValue)") }
+        if let limit = filter?.limit { params.append("limit=\(limit)") }
+        if let offset = filter?.offset { params.append("offset=\(offset)") }
+
+        var path = "/transfers"
+        if !params.isEmpty {
+            path += "?\(params.joined(separator: "&"))"
+        }
+
+        let response: TransfersResponse = try await get(path: path)
+        return response.transfers ?? []
+    }
+
+    /// Wait for transfer to complete.
+    public func waitForTransfer(
+        transferId: String,
+        pollInterval: TimeInterval = 10,
+        maxWait: TimeInterval = 1800
+    ) async throws -> Transfer {
+        let deadline = Date().addingTimeInterval(maxWait)
+
+        while Date() < deadline {
+            let transfer = try await getTransfer(transferId: transferId)
+            if Self.finalStatuses.contains(transfer.status) {
+                return transfer
+            }
+            try await Task.sleep(nanoseconds: UInt64(pollInterval * 1_000_000_000))
+        }
+
+        throw BridgeError.timeout("Waiting for transfer completion")
+    }
+
+    // MARK: - Convenience Methods
+
+    /// Complete lock-mint bridge flow.
+    public func bridgeTo(
+        asset: String,
+        amount: String,
+        targetChain: ChainId,
+        targetAddress: String,
+        lockOptions: LockOptions? = nil,
+        mintOptions: MintOptions? = nil
+    ) async throws -> Transfer {
+        let lockReceipt = try await lock(asset: asset, amount: amount, targetChain: targetChain, options: lockOptions)
+        if config.debug {
+            print("Locked: \(lockReceipt.id), waiting for confirmations...")
+        }
+
+        let proof = try await waitForLockProof(lockReceiptId: lockReceipt.id)
+        if config.debug {
+            print("Proof ready, minting on \(targetChain.rawValue)...")
+        }
+
+        _ = try await mint(proof: proof, targetAddress: targetAddress, options: mintOptions)
+        return try await waitForTransfer(transferId: lockReceipt.id)
+    }
+
+    /// Complete burn-unlock bridge flow.
+    public func bridgeBack(
+        wrappedAsset: String,
+        amount: String,
+        burnOptions: BurnOptions? = nil,
+        unlockOptions: UnlockOptions? = nil
+    ) async throws -> Transfer {
+        let burnReceipt = try await burn(wrappedAsset: wrappedAsset, amount: amount, options: burnOptions)
+        if config.debug {
+            print("Burned: \(burnReceipt.id), waiting for confirmations...")
+        }
+
+        let proof = try await waitForBurnProof(burnReceiptId: burnReceipt.id)
+        if config.debug {
+            print("Proof ready, unlocking on \(burnReceipt.targetChain.rawValue)...")
+        }
+
+        _ = try await unlock(proof: proof, options: unlockOptions)
+        return try await waitForTransfer(transferId: burnReceipt.id)
+    }
+
+    // MARK: - Lifecycle
+
+    /// Close the client.
+    public func close() {
+        closed = true
+        session.invalidateAndCancel()
+    }
+
+    /// Check if the client is closed.
+    public var isClosed: Bool { closed }
+
+    /// Perform a health check.
+    public func healthCheck() async -> Bool {
+        do {
+            let response: BridgeHealthResponse = try await get(path: "/health")
+            return response.status == "healthy"
+        } catch {
+            return false
+        }
+    }
+
+    // MARK: - Private HTTP Methods
+
+    private func get<T: Decodable>(path: String) async throws -> T {
+        return try await executeWithRetry {
+            try await self.performRequest(method: "GET", path: path, body: nil as [String: Any]?)
+        }
+    }
+
+    private func post<T: Decodable>(path: String, body: [String: Any]) async throws -> T {
+        return try await executeWithRetry {
+            try await self.performRequest(method: "POST", path: path, body: body)
+        }
+    }
+
+    private func performRequest<T: Decodable>(
+        method: String,
+        path: String,
+        body: [String: Any]?
+    ) async throws -> T {
+        if closed { throw BridgeError.clientClosed }
+
+        guard let url = URL(string: "\(config.endpoint)\(path)") else {
+            throw BridgeError.invalidResponse
+        }
+
+        var request = URLRequest(url: url)
+        request.httpMethod = method
+        request.setValue("Bearer \(config.apiKey)", forHTTPHeaderField: "Authorization")
+        request.setValue("application/json", forHTTPHeaderField: "Content-Type")
+        request.setValue("swift/0.1.0", forHTTPHeaderField: "X-SDK-Version")
+
+        if let body = body {
+            do {
+                request.httpBody = try JSONSerialization.data(withJSONObject: body)
+            } catch {
+                throw BridgeError.encodingError(error)
+            }
+        }
+
+        let (data, response): (Data, URLResponse)
+        do {
+            (data, response) = try await session.data(for: request)
+        } catch {
+            throw BridgeError.networkError(error)
+        }
+
+        guard let httpResponse = response as? HTTPURLResponse else {
+            throw BridgeError.invalidResponse
+        }
+
+        if httpResponse.statusCode >= 200 && httpResponse.statusCode < 300 {
+            if data.isEmpty {
+                throw BridgeError.invalidResponse
+            }
+            do {
+                return try decoder.decode(T.self, from: data)
+            } catch {
+                throw BridgeError.decodingError(error)
+            }
+        }
+
+        let errorInfo = try? JSONSerialization.jsonObject(with: data) as? [String: Any]
+        let message = errorInfo?["message"] as? String ?? "HTTP \(httpResponse.statusCode)"
+        let code = errorInfo?["code"] as? String
+        throw BridgeError.httpError(statusCode: httpResponse.statusCode, message: message, code: code)
+    }
+
+    private func executeWithRetry<T>(_ operation: () async throws -> T) async throws -> T {
+        var lastError: Error?
+
+        for attempt in 0..<config.retries {
+            do {
+                return try await operation()
+            } catch {
+                lastError = error
+                if config.debug {
+                    print("Attempt \(attempt + 1) failed: \(error)")
+                }
+                if attempt < config.retries - 1 {
+                    try await Task.sleep(nanoseconds: UInt64(1_000_000_000 * (1 << attempt)))
+                }
+            }
+        }
+
+        throw lastError ?? BridgeError.invalidResponse
+    }
+
+    // MARK: - Private Helpers
+
+    private func proofToDictionary(_ proof: LockProof) throws -> [String: Any] {
+        let data = try encoder.encode(proof)
+        guard let dict = try JSONSerialization.jsonObject(with: data) as? [String: Any] else {
+            throw BridgeError.encodingError(NSError(domain: "BridgeError", code: 0, userInfo: [NSLocalizedDescriptionKey: "Failed to encode proof"]))
+        }
+        return dict
+    }
+
+    private func burnProofToDictionary(_ proof: BurnProof) throws -> [String: Any] {
+        let data = try encoder.encode(proof)
+        guard let dict = try JSONSerialization.jsonObject(with: data) as? [String: Any] else {
+            throw BridgeError.encodingError(NSError(domain: "BridgeError", code: 0, userInfo: [NSLocalizedDescriptionKey: "Failed to encode proof"]))
+        }
+        return dict
+    }
+}
+
+// MARK: - Private Helpers
+
+private extension String {
+    var urlEncoded: String {
+        addingPercentEncoding(withAllowedCharacters: .urlPathAllowed) ?? self
+    }
+}
diff --git a/sdk/swift/Sources/Synor/Bridge/Types.swift b/sdk/swift/Sources/Synor/Bridge/Types.swift
new file mode 100644
index 0000000..d31bc19
--- /dev/null
+++ b/sdk/swift/Sources/Synor/Bridge/Types.swift
@@ -0,0 +1,373 @@
+import Foundation
+
+// MARK: - Configuration
+
+/// Configuration for the Synor Bridge client.
+public struct BridgeConfig {
+    public let apiKey: String
+    public let endpoint: String
+    public let timeout: TimeInterval
+    public let retries: Int
+    public let debug: Bool
+
+    public init(
+        apiKey: String,
+        endpoint: String = "https://bridge.synor.io/v1",
+        timeout: TimeInterval = 60,
+        retries: Int = 3,
+        debug: Bool = false
+    ) {
+        self.apiKey = apiKey
+        self.endpoint = endpoint
+        self.timeout = timeout
+        self.retries = retries
+        self.debug = debug
+    }
+}
+
+// MARK: - Chain Types
+
+/// Supported blockchain identifiers.
+public enum ChainId: String, Codable, Sendable {
+    case synor
+    case ethereum
+    case polygon
+    case arbitrum
+    case optimism
+    case bsc
+    case avalanche
+    case solana
+    case cosmos
+}
+
+/// A blockchain network.
+public struct Chain: Codable, Sendable {
+    public let id: ChainId
+    public let name: String
+    public let chainId: Int64
+    public let rpcUrl: String
+    public let explorerUrl: String
+    public let nativeCurrency: NativeCurrency
+    public let confirmations: Int
+    public let estimatedBlockTime: Int
+    public let supported: Bool
+}
+
+/// Native currency of a chain.
+public struct NativeCurrency: Codable, Sendable {
+    public let name: String
+    public let symbol: String
+    public let decimals: Int
+}
+
+/// Response for chain list operations.
+public struct ChainsResponse: Codable {
+    public let chains: [Chain]?
+}
+
+// MARK: - Asset Types
+
+/// Type of asset.
+public enum AssetType: String, Codable, Sendable {
+    case native
+    case erc20
+    case erc721
+    case erc1155
+}
+
+/// An asset on a blockchain.
+public struct Asset: Codable, Sendable {
+    public let id: String
+    public let symbol: String
+    public let name: String
+    public let type: AssetType
+    public let chain: ChainId
+    public let contractAddress: String?
+    public let decimals: Int
+    public let logoUrl: String?
+    public let verified: Bool
+}
+
+/// A wrapped asset on a target chain.
+public struct WrappedAsset: Codable, Sendable {
+    public let originalAsset: Asset
+    public let wrappedAsset: Asset
+    public let chain: ChainId
+    public let bridgeContract: String
+}
+
+/// Response for asset list operations.
+public struct AssetsResponse: Codable {
+    public let assets: [Asset]?
+}
+
+// MARK: - Transfer Types
+
+/// Status of a transfer.
+public enum TransferStatus: String, Codable, Sendable {
+    case pending
+    case locked
+    case confirming
+    case minting
+    case completed
+    case failed
+    case refunded
+}
+
+/// Direction of a transfer.
+public enum TransferDirection: String, Codable, Sendable {
+    case lock_mint
+    case burn_unlock
+}
+
+/// A cross-chain transfer.
+public struct Transfer: Codable, Sendable {
+    public let id: String
+    public let direction: TransferDirection
+    public let status: TransferStatus
+    public let sourceChain: ChainId
+    public let targetChain: ChainId
+    public let asset: Asset
+    public let amount: String
+    public let sender: String
+    public let recipient: String
+    public let sourceTxHash: String?
+    public let targetTxHash: String?
+    public let fee: String
+    public let feeAsset: Asset
+    public let createdAt: Int64
+    public let updatedAt: Int64
+    public let completedAt: Int64?
+    public let errorMessage: String?
+}
+
+/// Filter for listing transfers.
+public struct TransferFilter {
+    public let status: TransferStatus?
+    public let sourceChain: ChainId?
+    public let targetChain: ChainId?
+    public let asset: String?
+    public let sender: String?
+    public let recipient: String?
+    public let limit: Int?
+    public let offset: Int?
+
+    public init(
+        status: TransferStatus? = nil,
+        sourceChain: ChainId? = nil,
+        targetChain: ChainId? = nil,
+        asset: String? = nil,
+        sender: String? = nil,
+        recipient: String? = nil,
+        limit: Int? = nil,
+        offset: Int? = nil
+    ) {
+        self.status = status
+        self.sourceChain = sourceChain
+        self.targetChain = targetChain
+        self.asset = asset
+        self.sender = sender
+        self.recipient = recipient
+        self.limit = limit
+        self.offset = offset
+    }
+}
+
+/// Response for transfer list operations.
+public struct TransfersResponse: Codable {
+    public let transfers: [Transfer]?
+}
+
+// MARK: - Lock-Mint Types
+
+/// Validator signature for proofs.
+public struct ValidatorSignature: Codable, Sendable {
+    public let validator: String
+    public let signature: String
+    public let timestamp: Int64
+}
+
+/// Receipt from locking assets.
+public struct LockReceipt: Codable, Sendable {
+    public let id: String
+    public let txHash: String
+    public let sourceChain: ChainId
+    public let targetChain: ChainId
+    public let asset: Asset
+    public let amount: String
+    public let sender: String
+    public let recipient: String
+    public let lockTimestamp: Int64
+    public let confirmations: Int
+    public let requiredConfirmations: Int
+}
+
+/// Proof of lock for minting.
+public struct LockProof: Codable, Sendable {
+    public let lockReceipt: LockReceipt
+    public let merkleProof: [String]
+    public let blockHeader: String
+    public let signatures: [ValidatorSignature]
+}
+
+/// Options for locking assets.
+public struct LockOptions: Codable, Sendable {
+    public let recipient: String?
+    public let deadline: Int64?
+    public let slippage: Double?
+
+    public init(recipient: String? = nil, deadline: Int64? = nil, slippage: Double? = nil) {
+        self.recipient = recipient
+        self.deadline = deadline
+        self.slippage = slippage
+    }
+}
+
+/// Options for minting assets.
+public struct MintOptions: Codable, Sendable {
+    public let gasLimit: String?
+    public let maxFeePerGas: String?
+    public let maxPriorityFeePerGas: String?
+
+    public init(gasLimit: String? = nil, maxFeePerGas: String? = nil, maxPriorityFeePerGas: String? = nil) {
+        self.gasLimit = gasLimit
+        self.maxFeePerGas = maxFeePerGas
+        self.maxPriorityFeePerGas = maxPriorityFeePerGas
+    }
+}
+
+// MARK: - Burn-Unlock Types
+
+/// Receipt from burning wrapped assets.
+public struct BurnReceipt: Codable, Sendable {
+    public let id: String
+    public let txHash: String
+    public let sourceChain: ChainId
+    public let targetChain: ChainId
+    public let wrappedAsset: Asset
+    public let originalAsset: Asset
+    public let amount: String
+    public let sender: String
+    public let recipient: String
+    public let burnTimestamp: Int64
+    public let confirmations: Int
+    public let requiredConfirmations: Int
+}
+
+/// Proof of burn for unlocking.
+public struct BurnProof: Codable, Sendable {
+    public let burnReceipt: BurnReceipt
+    public let merkleProof: [String]
+    public let blockHeader: String
+    public let signatures: [ValidatorSignature]
+}
+
+/// Options for burning wrapped assets.
+public struct BurnOptions: Codable, Sendable {
+    public let recipient: String?
+    public let deadline: Int64?
+
+    public init(recipient: String? = nil, deadline: Int64? = nil) {
+        self.recipient = recipient
+        self.deadline = deadline
+    }
+}
+
+/// Options for unlocking original assets.
+public struct UnlockOptions: Codable, Sendable {
+    public let gasLimit: String?
+    public let gasPrice: String?
+
+    public init(gasLimit: String? = nil, gasPrice: String? = nil) {
+        self.gasLimit = gasLimit
+        self.gasPrice = gasPrice
+    }
+}
+
+// MARK: - Fee & Rate Types
+
+/// Fee estimate for a transfer.
+public struct BridgeFeeEstimate: Codable, Sendable {
+    public let bridgeFee: String
+    public let gasFeeSource: String
+    public let gasFeeTarget: String
+    public let totalFee: String
+    public let feeAsset: Asset
+    public let estimatedTime: Int
+    public let exchangeRate: String?
+}
+
+/// Exchange rate between assets.
+public struct ExchangeRate: Codable, Sendable {
+    public let fromAsset: Asset
+    public let toAsset: Asset
+    public let rate: String
+    public let inverseRate: String
+    public let lastUpdated: Int64
+    public let source: String
+}
+
+// MARK: - Transaction Types
+
+/// A signed transaction.
+public struct BridgeSignedTransaction: Codable, Sendable {
+    public let txHash: String
+    public let chain: ChainId
+    public let from: String
+    public let to: String
+    public let value: String
+    public let data: String
+    public let gasLimit: String
+    public let gasPrice: String?
+    public let maxFeePerGas: String?
+    public let maxPriorityFeePerGas: String?
+    public let nonce: Int
+    public let signature: String
+}
+
+// MARK: - Error Types
+
+/// Errors that can occur during bridge operations.
+public enum BridgeError: Error, LocalizedError {
+    case clientClosed
+    case httpError(statusCode: Int, message: String, code: String?)
+    case networkError(Error)
+    case encodingError(Error)
+    case decodingError(Error)
+    case invalidResponse
+    case timeout(String)
+
+    public var errorDescription: String? {
+        switch self {
+        case .clientClosed:
+            return "Client has been closed"
+        case .httpError(let statusCode, let message, _):
+            return "HTTP \(statusCode): \(message)"
+        case .networkError(let error):
+            return "Network error: \(error.localizedDescription)"
+        case .encodingError(let error):
+            return "Encoding error: \(error.localizedDescription)"
+        case .decodingError(let error):
+            return "Decoding error: \(error.localizedDescription)"
+        case .invalidResponse:
+            return "Invalid response"
+        case .timeout(let message):
+            return "Timeout: \(message)"
+        }
+    }
+
+    /// Whether this error indicates confirmations are still pending.
+    public var isConfirmationsPending: Bool {
+        if case .httpError(_, _, let code) = self {
+            return code == "CONFIRMATIONS_PENDING"
+        }
+        return false
+    }
+}
+
+// MARK: - Health Check
+
+/// Health check response.
+public struct BridgeHealthResponse: Codable {
+    public let status: String
+}
diff --git a/sdk/swift/Sources/Synor/Database/SynorDatabase.swift b/sdk/swift/Sources/Synor/Database/SynorDatabase.swift
new file mode 100644
index 0000000..48c8e62
--- /dev/null
+++ b/sdk/swift/Sources/Synor/Database/SynorDatabase.swift
@@ -0,0 +1,369 @@
+import Foundation
+
+/// Synor Database SDK client for Swift.
+///
+/// Provides multi-model database with Key-Value, Document, Vector, and Time Series stores.
+///
+/// Example:
+/// ```swift
+/// let db = SynorDatabase(config: DatabaseConfig(apiKey: "your-api-key"))
+///
+/// // Key-Value operations
+/// try await db.kv.set(key: "mykey", value: "myvalue", ttl: 3600)
+/// let value = try await db.kv.get(key: "mykey")
+///
+/// // Document operations
+/// let docId = try await db.documents.create(collection: "users", document: ["name": "Alice", "age": 30])
+/// let doc = try await db.documents.get(collection: "users", id: docId)
+///
+/// // Vector operations
+/// try await db.vectors.upsert(collection: "embeddings", vectors: [
+///     VectorEntry(id: "vec1", vector: [0.1, 0.2, 0.3], metadata: ["label": "test"])
+/// ])
+///
+/// // Time series operations
+/// try await db.timeseries.write(series: "metrics", points: [
+///     DataPoint(timestamp: Date().timeIntervalSince1970, value: 42.0)
+/// ])
+/// ```
+public class SynorDatabase {
+    private let config: DatabaseConfig
+    private let session: URLSession
+    private let decoder: JSONDecoder
+    private let encoder: JSONEncoder
+    private var closed = false
+
+    /// Key-Value store operations.
+    public private(set) lazy var kv = KeyValueStore(db: self)
+
+    /// Document store operations.
+    public private(set) lazy var documents = DocumentStore(db: self)
+
+    /// Vector store operations.
+    public private(set) lazy var vectors = VectorStore(db: self)
+
+    /// Time series store operations.
+    public private(set) lazy var timeseries = TimeSeriesStore(db: self)
+
+    public init(config: DatabaseConfig) {
+        self.config = config
+
+        let sessionConfig = URLSessionConfiguration.default
+        sessionConfig.timeoutIntervalForRequest = config.timeout
+        sessionConfig.timeoutIntervalForResource = config.timeout * 2
+        self.session = URLSession(configuration: sessionConfig)
+
+        self.decoder = JSONDecoder()
+        self.encoder = JSONEncoder()
+    }
+
+    // MARK: - Key-Value Store
+
+    /// Key-Value store for simple key-value operations.
+    public class KeyValueStore {
+        private let db: SynorDatabase
+
+        internal init(db: SynorDatabase) {
+            self.db = db
+        }
+
+        /// Get a value by key.
+        public func get(key: String) async throws -> Any? {
+            let response: KVGetResponse = try await db.request(
+                method: "GET",
+                path: "/kv/\(key.urlEncoded)"
+            )
+            return response.value?.value
+        }
+
+        /// Set a value for a key with optional TTL.
+        public func set(key: String, value: Any, ttl: Int? = nil) async throws {
+            var body: [String: AnyCodable] = [
+                "key": AnyCodable(key),
+                "value": AnyCodable(value)
+            ]
+            if let ttl = ttl {
+                body["ttl"] = AnyCodable(ttl)
+            }
+            let _: EmptyResponse = try await db.request(
+                method: "PUT",
+                path: "/kv/\(key.urlEncoded)",
+                body: body
+            )
+        }
+
+        /// Delete a key.
+        public func delete(key: String) async throws {
+            let _: EmptyResponse = try await db.request(
+                method: "DELETE",
+                path: "/kv/\(key.urlEncoded)"
+            )
+        }
+
+        /// List keys by prefix.
+        public func list(prefix: String) async throws -> [KeyValue] {
+            let response: KVListResponse = try await db.request(
+                method: "GET",
+                path: "/kv?prefix=\(prefix.urlEncoded)"
+            )
+            return response.items ?? []
+        }
+    }
+
+    // MARK: - Document Store
+
+    /// Document store for document-oriented operations.
+    public class DocumentStore {
+        private let db: SynorDatabase
+
+        internal init(db: SynorDatabase) {
+            self.db = db
+        }
+
+        /// Create a new document.
+        public func create(collection: String, document: [String: Any]) async throws -> String {
+            let body = document.mapValues { AnyCodable($0) }
+            let response: CreateDocumentResponse = try await db.request(
+                method: "POST",
+                path: "/collections/\(collection.urlEncoded)/documents",
+                body: body
+            )
+            return response.id
+        }
+
+        /// Get a document by ID.
+        public func get(collection: String, id: String) async throws -> Document {
+            return try await db.request(
+                method: "GET",
+                path: "/collections/\(collection.urlEncoded)/documents/\(id.urlEncoded)"
+            )
+        }
+
+        /// Update a document.
+        public func update(collection: String, id: String, update: [String: Any]) async throws {
+            let body = update.mapValues { AnyCodable($0) }
+            let _: EmptyResponse = try await db.request(
+                method: "PATCH",
+                path: "/collections/\(collection.urlEncoded)/documents/\(id.urlEncoded)",
+                body: body
+            )
+        }
+
+        /// Delete a document.
+        public func delete(collection: String, id: String) async throws {
+            let _: EmptyResponse = try await db.request(
+                method: "DELETE",
+                path: "/collections/\(collection.urlEncoded)/documents/\(id.urlEncoded)"
+            )
+        }
+
+        /// Query documents.
+        public func query(collection: String, query: DocumentQuery) async throws -> [Document] {
+            let response: DocumentListResponse = try await db.request(
+                method: "POST",
+                path: "/collections/\(collection.urlEncoded)/query",
+                body: query
+            )
+            return response.documents ?? []
+        }
+    }
+
+    // MARK: - Vector Store
+
+    /// Vector store for similarity search operations.
+    public class VectorStore {
+        private let db: SynorDatabase
+
+        internal init(db: SynorDatabase) {
+            self.db = db
+        }
+
+        /// Upsert vectors into a collection.
+        public func upsert(collection: String, vectors: [VectorEntry]) async throws {
+            let body: [String: [VectorEntry]] = ["vectors": vectors]
+            let _: EmptyResponse = try await db.request(
+                method: "POST",
+                path: "/vectors/\(collection.urlEncoded)/upsert",
+                body: body
+            )
+        }
+
+        /// Search for similar vectors.
+        public func search(collection: String, vector: [Double], k: Int) async throws -> [SearchResult] {
+            let body: [String: AnyCodable] = [
+                "vector": AnyCodable(vector),
+                "k": AnyCodable(k)
+            ]
+            let response: SearchListResponse = try await db.request(
+                method: "POST",
+                path: "/vectors/\(collection.urlEncoded)/search",
+                body: body
+            )
+            return response.results ?? []
+        }
+
+        /// Delete vectors by IDs.
+        public func delete(collection: String, ids: [String]) async throws {
+            let body: [String: [String]] = ["ids": ids]
+            let _: EmptyResponse = try await db.request(
+                method: "DELETE",
+                path: "/vectors/\(collection.urlEncoded)",
+                body: body
+            )
+        }
+    }
+
+    // MARK: - Time Series Store
+
+    /// Time series store for time-based data operations.
+    public class TimeSeriesStore {
+        private let db: SynorDatabase
+
+        internal init(db: SynorDatabase) {
+            self.db = db
+        }
+
+        /// Write data points to a series.
+        public func write(series: String, points: [DataPoint]) async throws {
+            let body: [String: [DataPoint]] = ["points": points]
+            let _: EmptyResponse = try await db.request(
+                method: "POST",
+                path: "/timeseries/\(series.urlEncoded)/write",
+                body: body
+            )
+        }
+
+        /// Query data points from a series.
+        public func query(series: String, range: TimeRange, aggregation: Aggregation? = nil) async throws -> [DataPoint] {
+            var body: [String: AnyCodable] = ["range": AnyCodable(["start": range.start, "end": range.end])]
+            if let aggregation = aggregation {
+                body["aggregation"] = AnyCodable(["function": aggregation.function, "interval": aggregation.interval])
+            }
+            let response: DataPointListResponse = try await db.request(
+                method: "POST",
+                path: "/timeseries/\(series.urlEncoded)/query",
+                body: body
+            )
+            return response.points ?? []
+        }
+    }
+
+    // MARK: - Lifecycle
+
+    /// Close the client.
+    public func close() {
+        closed = true
+        session.invalidateAndCancel()
+    }
+
+    /// Check if the client is closed.
+    public var isClosed: Bool { closed }
+
+    /// Perform a health check.
+    public func healthCheck() async -> Bool {
+        do {
+            let response: HealthResponse = try await request(method: "GET", path: "/health")
+            return response.status == "healthy"
+        } catch {
+            return false
+        }
+    }
+
+    // MARK: - Internal HTTP Methods
+
+    internal func request<T: Decodable>(method: String, path: String) async throws -> T {
+        return try await executeWithRetry {
+            try await self.performRequest(method: method, path: path, body: nil as EmptyBody?)
+        }
+    }
+
+    internal func request<T: Decodable, R: Encodable>(method: String, path: String, body: R) async throws -> T {
+        return try await executeWithRetry {
+            try await self.performRequest(method: method, path: path, body: body)
+        }
+    }
+
+    private func performRequest<T: Decodable, R: Encodable>(
+        method: String,
+        path: String,
+        body: R?
+    ) async throws -> T {
+        if closed { throw DatabaseError.clientClosed }
+
+        guard let url = URL(string: "\(config.endpoint)\(path)") else {
+            throw DatabaseError.invalidResponse
+        }
+
+        var request = URLRequest(url: url)
+        request.httpMethod = method
+        request.setValue("Bearer \(config.apiKey)", forHTTPHeaderField: "Authorization")
+        request.setValue("application/json", forHTTPHeaderField: "Content-Type")
+        request.setValue("swift/0.1.0", forHTTPHeaderField: "X-SDK-Version")
+
+        if let body = body {
+            do {
+                request.httpBody = try encoder.encode(body)
+            } catch {
+                throw DatabaseError.encodingError(error)
+            }
+        }
+
+        let (data, response): (Data, URLResponse)
+        do {
+            (data, response) = try await session.data(for: request)
+        } catch {
+            throw DatabaseError.networkError(error)
+        }
+
+        guard let httpResponse = response as? HTTPURLResponse else {
+            throw DatabaseError.invalidResponse
+        }
+
+        if httpResponse.statusCode >= 200 && httpResponse.statusCode < 300 {
+            if data.isEmpty && T.self == EmptyResponse.self {
+                return EmptyResponse() as! T
+            }
+            do {
+                return try decoder.decode(T.self, from: data)
+            } catch {
+                throw DatabaseError.decodingError(error)
+            }
+        }
+
+        let errorInfo = try? JSONSerialization.jsonObject(with: data) as? [String: Any]
+        let message = errorInfo?["message"] as? String ?? "HTTP \(httpResponse.statusCode)"
+        let code = errorInfo?["code"] as? String
+        throw DatabaseError.httpError(statusCode: httpResponse.statusCode, message: message, code: code)
+    }
+
+    private func executeWithRetry<T>(_ operation: () async throws -> T) async throws -> T {
+        var lastError: Error?
+
+        for attempt in 0..<config.retries {
+            do {
+                return try await operation()
+            } catch {
+                lastError = error
+                if config.debug {
+                    print("Attempt \(attempt + 1) failed: \(error)")
+                }
+                if attempt < config.retries - 1 {
+                    try await Task.sleep(nanoseconds: UInt64(1_000_000_000 * (1 << attempt)))
+                }
+            }
+        }
+
+        throw lastError ?? DatabaseError.invalidResponse
+    }
+}
+
+// MARK: - Private Helpers
+
+private struct EmptyBody: Encodable {}
+private struct EmptyResponse: Decodable {}
+
+private extension String {
+    var urlEncoded: String {
+        addingPercentEncoding(withAllowedCharacters: .urlPathAllowed) ?? self
+    }
+}
diff --git a/sdk/swift/Sources/Synor/Database/Types.swift b/sdk/swift/Sources/Synor/Database/Types.swift
new file mode 100644
index 0000000..da54fe0
--- /dev/null
+++ b/sdk/swift/Sources/Synor/Database/Types.swift
@@ -0,0 +1,251 @@
+import Foundation
+
+// MARK: - Configuration
+
+/// Configuration for the Synor Database client.
+public struct DatabaseConfig {
+    public let apiKey: String
+    public let endpoint: String
+    public let timeout: TimeInterval
+    public let retries: Int
+    public let debug: Bool
+
+    public init(
+        apiKey: String,
+        endpoint: String = "https://db.synor.io/v1",
+        timeout: TimeInterval = 60,
+        retries: Int = 3,
+        debug: Bool = false
+    ) {
+        self.apiKey = apiKey
+        self.endpoint = endpoint
+        self.timeout = timeout
+        self.retries = retries
+        self.debug = debug
+    }
+}
+
+// MARK: - Key-Value Store Types
+
+/// A key-value pair with metadata.
+public struct KeyValue: Codable, Sendable {
+    public let key: String
+    public let value: AnyCodable
+    public let ttl: Int?
+    public let createdAt: Int64?
+    public let updatedAt: Int64?
+}
+
+/// Response for key-value get operations.
+public struct KVGetResponse: Codable {
+    public let value: AnyCodable?
+}
+
+/// Response for key-value list operations.
+public struct KVListResponse: Codable {
+    public let items: [KeyValue]?
+}
+
+// MARK: - Document Store Types
+
+/// A document with metadata.
+public struct Document: Codable, Sendable {
+    public let id: String
+    public let collection: String
+    public let data: [String: AnyCodable]
+    public let createdAt: Int64
+    public let updatedAt: Int64
+}
+
+/// Response for document creation.
+public struct CreateDocumentResponse: Codable {
+    public let id: String
+}
+
+/// Response for document queries.
+public struct DocumentListResponse: Codable {
+    public let documents: [Document]?
+}
+
+/// Query parameters for document store.
+public struct DocumentQuery: Codable {
+    public let filter: [String: AnyCodable]?
+    public let sort: [String: Int]?
+    public let limit: Int?
+    public let offset: Int?
+    public let projection: [String]?
+
+    public init(
+        filter: [String: AnyCodable]? = nil,
+        sort: [String: Int]? = nil,
+        limit: Int? = nil,
+        offset: Int? = nil,
+        projection: [String]? = nil
+    ) {
+        self.filter = filter
+        self.sort = sort
+        self.limit = limit
+        self.offset = offset
+        self.projection = projection
+    }
+}
+
+// MARK: - Vector Store Types
+
+/// A vector entry with metadata.
+public struct VectorEntry: Codable, Sendable {
+    public let id: String
+    public let vector: [Double]
+    public let metadata: [String: AnyCodable]?
+
+    public init(id: String, vector: [Double], metadata: [String: AnyCodable]? = nil) {
+        self.id = id
+        self.vector = vector
+        self.metadata = metadata
+    }
+}
+
+/// Result from a vector search.
+public struct SearchResult: Codable, Sendable {
+    public let id: String
+    public let score: Double
+    public let vector: [Double]?
+    public let metadata: [String: AnyCodable]?
+}
+
+/// Response for vector search operations.
+public struct SearchListResponse: Codable {
+    public let results: [SearchResult]?
+}
+
+// MARK: - Time Series Types
+
+/// A time series data point.
+public struct DataPoint: Codable, Sendable {
+    public let timestamp: Int64
+    public let value: Double
+    public let tags: [String: String]?
+
+    public init(timestamp: Int64, value: Double, tags: [String: String]? = nil) {
+        self.timestamp = timestamp
+        self.value = value
+        self.tags = tags
+    }
+}
+
+/// Time range for queries.
+public struct TimeRange: Codable, Sendable {
+    public let start: Int64
+    public let end: Int64
+
+    public init(start: Int64, end: Int64) {
+        self.start = start
+        self.end = end
+    }
+}
+
+/// Aggregation settings for time series queries.
+public struct Aggregation: Codable, Sendable {
+    public let function: String
+    public let interval: String
+
+    public init(function: String, interval: String) {
+        self.function = function
+        self.interval = interval
+    }
+}
+
+/// Response for time series queries.
+public struct DataPointListResponse: Codable {
+    public let points: [DataPoint]?
+}
+
+// MARK: - Error Types
+
+/// Errors that can occur during database operations.
+public enum DatabaseError: Error, LocalizedError {
+    case clientClosed
+    case httpError(statusCode: Int, message: String, code: String?)
+    case networkError(Error)
+    case encodingError(Error)
+    case decodingError(Error)
+    case invalidResponse
+
+    public var errorDescription: String? {
+        switch self {
+        case .clientClosed:
+            return "Client has been closed"
+        case .httpError(let statusCode, let message, _):
+            return "HTTP \(statusCode): \(message)"
+        case .networkError(let error):
+            return "Network error: \(error.localizedDescription)"
+        case .encodingError(let error):
+            return "Encoding error: \(error.localizedDescription)"
+        case .decodingError(let error):
+            return "Decoding error: \(error.localizedDescription)"
+        case .invalidResponse:
+            return "Invalid response"
+        }
+    }
+}
+
+// MARK: - Helper Types
+
+/// Type-erased codable value for dynamic JSON.
+public struct AnyCodable: Codable, Sendable {
+    public let value: Any
+
+    public init(_ value: Any) {
+        self.value = value
+    }
+
+    public init(from decoder: Decoder) throws {
+        let container = try decoder.singleValueContainer()
+
+        if container.decodeNil() {
+            value = NSNull()
+        } else if let bool = try? container.decode(Bool.self) {
+            value = bool
+        } else if let int = try? container.decode(Int.self) {
+            value = int
+        } else if let double = try? container.decode(Double.self) {
+            value = double
+        } else if let string = try? container.decode(String.self) {
+            value = string
+        } else if let array = try? container.decode([AnyCodable].self) {
+            value = array.map { $0.value }
+        } else if let dict = try? container.decode([String: AnyCodable].self) {
+            value = dict.mapValues { $0.value }
+        } else {
+            throw DecodingError.dataCorruptedError(in: container, debugDescription: "Unable to decode value")
+        }
+    }
+
+    public func encode(to encoder: Encoder) throws {
+        var container = encoder.singleValueContainer()
+
+        switch value {
+        case is NSNull:
+            try container.encodeNil()
+        case let bool as Bool:
+            try container.encode(bool)
+        case let int as Int:
+            try container.encode(int)
+        case let double as Double:
+            try container.encode(double)
+        case let string as String:
+            try container.encode(string)
+        case let array as [Any]:
+            try container.encode(array.map { AnyCodable($0) })
+        case let dict as [String: Any]:
+            try container.encode(dict.mapValues { AnyCodable($0) })
+        default:
+            throw EncodingError.invalidValue(value, EncodingError.Context(codingPath: encoder.codingPath, debugDescription: "Unable to encode value"))
+        }
+    }
+}
+
+/// Health check response.
+public struct HealthResponse: Codable {
+    public let status: String
+}
diff --git a/sdk/swift/Sources/Synor/Hosting/SynorHosting.swift b/sdk/swift/Sources/Synor/Hosting/SynorHosting.swift
new file mode 100644
index 0000000..e077f24
--- /dev/null
+++ b/sdk/swift/Sources/Synor/Hosting/SynorHosting.swift
@@ -0,0 +1,402 @@
+import Foundation
+
+/// Synor Hosting SDK client for Swift.
+///
+/// Provides decentralized web hosting with domain management, DNS, deployments, SSL, and analytics.
+///
+/// Example:
+/// ```swift
+/// let hosting = SynorHosting(config: HostingConfig(apiKey: "your-api-key"))
+///
+/// // Check domain availability
+/// let availability = try await hosting.checkAvailability(name: "mydomain.synor")
+/// if availability.available {
+///     // Register domain
+///     let domain = try await hosting.registerDomain(name: "mydomain.synor")
+///     print("Registered: \(domain.name)")
+/// }
+///
+/// // Deploy content
+/// let deployment = try await hosting.deploy(cid: "Qm...", options: DeployOptions(domain: "mydomain.synor"))
+/// print("Deployed to: \(deployment.url)")
+///
+/// // Provision SSL
+/// let cert = try await hosting.provisionSsl(domain: "mydomain.synor")
+/// print("SSL status: \(cert.status)")
+/// ```
+public class SynorHosting {
+    private let config: HostingConfig
+    private let session: URLSession
+    private let decoder: JSONDecoder
+    private let encoder: JSONEncoder
+    private var closed = false
+
+    public init(config: HostingConfig) {
+        self.config = config
+
+        let sessionConfig = URLSessionConfiguration.default
+        sessionConfig.timeoutIntervalForRequest = config.timeout
+        sessionConfig.timeoutIntervalForResource = config.timeout * 2
+        self.session = URLSession(configuration: sessionConfig)
+
+        self.decoder = JSONDecoder()
+        self.encoder = JSONEncoder()
+    }
+
+    // MARK: - Domain Operations
+
+    /// Check domain availability.
+    public func checkAvailability(name: String) async throws -> DomainAvailability {
+        return try await get(path: "/domains/check/\(name.urlEncoded)")
+    }
+
+    /// Register a new domain.
+    public func registerDomain(name: String, options: RegisterDomainOptions? = nil) async throws -> Domain {
+        var body: [String: Any] = ["name": name]
+        if let options = options {
+            if let years = options.years { body["years"] = years }
+            if let autoRenew = options.autoRenew { body["autoRenew"] = autoRenew }
+        }
+        return try await post(path: "/domains", body: body)
+    }
+
+    /// Get domain details.
+    public func getDomain(name: String) async throws -> Domain {
+        return try await get(path: "/domains/\(name.urlEncoded)")
+    }
+
+    /// List all domains.
+    public func listDomains() async throws -> [Domain] {
+        let response: DomainsResponse = try await get(path: "/domains")
+        return response.domains ?? []
+    }
+
+    /// Update domain record.
+    public func updateDomainRecord(name: String, record: DomainRecord) async throws -> Domain {
+        return try await put(path: "/domains/\(name.urlEncoded)/record", body: record)
+    }
+
+    /// Resolve domain to its record.
+    public func resolveDomain(name: String) async throws -> DomainRecord {
+        return try await get(path: "/domains/\(name.urlEncoded)/resolve")
+    }
+
+    /// Renew a domain.
+    public func renewDomain(name: String, years: Int) async throws -> Domain {
+        return try await post(path: "/domains/\(name.urlEncoded)/renew", body: ["years": years])
+    }
+
+    // MARK: - DNS Operations
+
+    /// Get DNS zone for a domain.
+    public func getDnsZone(domain: String) async throws -> DnsZone {
+        return try await get(path: "/dns/\(domain.urlEncoded)")
+    }
+
+    /// Set DNS records for a domain.
+    public func setDnsRecords(domain: String, records: [DnsRecord]) async throws -> DnsZone {
+        return try await put(path: "/dns/\(domain.urlEncoded)", body: ["records": records])
+    }
+
+    /// Add a DNS record.
+    public func addDnsRecord(domain: String, record: DnsRecord) async throws -> DnsZone {
+        return try await post(path: "/dns/\(domain.urlEncoded)/records", body: record)
+    }
+
+    /// Delete a DNS record.
+    public func deleteDnsRecord(domain: String, recordType: String, name: String) async throws -> DnsZone {
+        return try await delete(path: "/dns/\(domain.urlEncoded)/records/\(recordType)/\(name.urlEncoded)")
+    }
+
+    // MARK: - Deployment Operations
+
+    /// Deploy content to a domain.
+    public func deploy(cid: String, options: DeployOptions? = nil) async throws -> Deployment {
+        var body: [String: Any] = ["cid": cid]
+        if let options = options {
+            if let domain = options.domain { body["domain"] = domain }
+            if let subdomain = options.subdomain { body["subdomain"] = subdomain }
+            if let spa = options.spa { body["spa"] = spa }
+            if let cleanUrls = options.cleanUrls { body["cleanUrls"] = cleanUrls }
+            if let trailingSlash = options.trailingSlash { body["trailingSlash"] = trailingSlash }
+        }
+        return try await post(path: "/deployments", body: body)
+    }
+
+    /// Get deployment details.
+    public func getDeployment(id: String) async throws -> Deployment {
+        return try await get(path: "/deployments/\(id.urlEncoded)")
+    }
+
+    /// List deployments.
+    public func listDeployments(domain: String? = nil) async throws -> [Deployment] {
+        var path = "/deployments"
+        if let domain = domain {
+            path += "?domain=\(domain.urlEncoded)"
+        }
+        let response: DeploymentsResponse = try await get(path: path)
+        return response.deployments ?? []
+    }
+
+    /// Rollback to a previous deployment.
+    public func rollback(domain: String, deploymentId: String) async throws -> Deployment {
+        return try await post(
+            path: "/deployments/\(deploymentId.urlEncoded)/rollback",
+            body: ["domain": domain]
+        )
+    }
+
+    /// Delete a deployment.
+    public func deleteDeployment(id: String) async throws {
+        let _: EmptyHostingResponse = try await deleteRequest(path: "/deployments/\(id.urlEncoded)")
+    }
+
+    // MARK: - SSL Operations
+
+    /// Provision SSL certificate for a domain.
+    public func provisionSsl(domain: String, options: ProvisionSslOptions? = nil) async throws -> Certificate {
+        var body: [String: Any] = [:]
+        if let options = options {
+            if let includeWww = options.includeWww { body["includeWww"] = includeWww }
+            if let autoRenew = options.autoRenew { body["autoRenew"] = autoRenew }
+        }
+        return try await post(path: "/ssl/\(domain.urlEncoded)", body: body.isEmpty ? nil : body)
+    }
+
+    /// Get certificate details.
+    public func getCertificate(domain: String) async throws -> Certificate {
+        return try await get(path: "/ssl/\(domain.urlEncoded)")
+    }
+
+    /// Renew SSL certificate.
+    public func renewCertificate(domain: String) async throws -> Certificate {
+        return try await post(path: "/ssl/\(domain.urlEncoded)/renew", body: nil as [String: Any]?)
+    }
+
+    /// Delete SSL certificate.
+    public func deleteCertificate(domain: String) async throws {
+        let _: EmptyHostingResponse = try await deleteRequest(path: "/ssl/\(domain.urlEncoded)")
+    }
+
+    // MARK: - Site Configuration
+
+    /// Get site configuration.
+    public func getSiteConfig(domain: String) async throws -> SiteConfig {
+        return try await get(path: "/sites/\(domain.urlEncoded)/config")
+    }
+
+    /// Update site configuration.
+    public func updateSiteConfig(domain: String, config: [String: Any]) async throws -> SiteConfig {
+        return try await patch(path: "/sites/\(domain.urlEncoded)/config", body: config)
+    }
+
+    /// Purge cache.
+    public func purgeCache(domain: String, paths: [String]? = nil) async throws -> Int64 {
+        let body: [String: Any]? = paths.map { ["paths": $0] }
+        let response: PurgeResponse = try await deleteRequest(
+            path: "/sites/\(domain.urlEncoded)/cache",
+            body: body
+        )
+        return response.purged
+    }
+
+    // MARK: - Analytics
+
+    /// Get analytics data for a domain.
+    public func getAnalytics(domain: String, options: AnalyticsOptions? = nil) async throws -> AnalyticsData {
+        var params: [String] = []
+        if let period = options?.period { params.append("period=\(period.urlEncoded)") }
+        if let start = options?.start { params.append("start=\(start.urlEncoded)") }
+        if let end = options?.end { params.append("end=\(end.urlEncoded)") }
+
+        var path = "/sites/\(domain.urlEncoded)/analytics"
+        if !params.isEmpty {
+            path += "?\(params.joined(separator: "&"))"
+        }
+        return try await get(path: path)
+    }
+
+    // MARK: - Lifecycle
+
+    /// Close the client.
+    public func close() {
+        closed = true
+        session.invalidateAndCancel()
+    }
+
+    /// Check if the client is closed.
+    public var isClosed: Bool { closed }
+
+    /// Perform a health check.
+    public func healthCheck() async -> Bool {
+        do {
+            let response: HostingHealthResponse = try await get(path: "/health")
+            return response.status == "healthy"
+        } catch {
+            return false
+        }
+    }
+
+    // MARK: - Private HTTP Methods
+
+    private func get<T: Decodable>(path: String) async throws -> T {
+        return try await executeWithRetry {
+            try await self.performRequest(method: "GET", path: path, body: nil as [String: Any]?)
+        }
+    }
+
+    private func post<T: Decodable>(path: String, body: [String: Any]?) async throws -> T {
+        return try await executeWithRetry {
+            try await self.performRequest(method: "POST", path: path, body: body)
+        }
+    }
+
+    private func post<T: Decodable, R: Encodable>(path: String, body: R) async throws -> T {
+        return try await executeWithRetry {
+            try await self.performEncodableRequest(method: "POST", path: path, body: body)
+        }
+    }
+
+    private func put<T: Decodable>(path: String, body: [String: Any]) async throws -> T {
+        return try await executeWithRetry {
+            try await self.performRequest(method: "PUT", path: path, body: body)
+        }
+    }
+
+    private func put<T: Decodable, R: Encodable>(path: String, body: R) async throws -> T {
+        return try await executeWithRetry {
+            try await self.performEncodableRequest(method: "PUT", path: path, body: body)
+        }
+    }
+
+    private func patch<T: Decodable>(path: String, body: [String: Any]) async throws -> T {
+        return try await executeWithRetry {
+            try await self.performRequest(method: "PATCH", path: path, body: body)
+        }
+    }
+
+    private func delete<T: Decodable>(path: String) async throws -> T {
+        return try await executeWithRetry {
+            try await self.performRequest(method: "DELETE", path: path, body: nil as [String: Any]?)
+        }
+    }
+
+    private func deleteRequest<T: Decodable>(path: String, body: [String: Any]? = nil) async throws -> T {
+        return try await executeWithRetry {
+            try await self.performRequest(method: "DELETE", path: path, body: body)
+        }
+    }
+
+    private func performRequest<T: Decodable>(
+        method: String,
+        path: String,
+        body: [String: Any]?
+    ) async throws -> T {
+        if closed { throw HostingError.clientClosed }
+
+        guard let url = URL(string: "\(config.endpoint)\(path)") else {
+            throw HostingError.invalidResponse
+        }
+
+        var request = URLRequest(url: url)
+        request.httpMethod = method
+        request.setValue("Bearer \(config.apiKey)", forHTTPHeaderField: "Authorization")
+        request.setValue("application/json", forHTTPHeaderField: "Content-Type")
+        request.setValue("swift/0.1.0", forHTTPHeaderField: "X-SDK-Version")
+
+        if let body = body {
+            do {
+                request.httpBody = try JSONSerialization.data(withJSONObject: body)
+            } catch {
+                throw HostingError.encodingError(error)
+            }
+        }
+
+        return try await executeRequest(request)
+    }
+
+    private func performEncodableRequest<T: Decodable, R: Encodable>(
+        method: String,
+        path: String,
+        body: R
+    ) async throws -> T {
+        if closed { throw HostingError.clientClosed }
+
+        guard let url = URL(string: "\(config.endpoint)\(path)") else {
+            throw HostingError.invalidResponse
+        }
+
+        var request = URLRequest(url: url)
+        request.httpMethod = method
+        request.setValue("Bearer \(config.apiKey)", forHTTPHeaderField: "Authorization")
+        request.setValue("application/json", forHTTPHeaderField: "Content-Type")
+        request.setValue("swift/0.1.0", forHTTPHeaderField: "X-SDK-Version")
+
+        do {
+            request.httpBody = try encoder.encode(body)
+        } catch {
+            throw HostingError.encodingError(error)
+        }
+
+        return try await executeRequest(request)
+    }
+
+    private func executeRequest<T: Decodable>(_ request: URLRequest) async throws -> T {
+        let (data, response): (Data, URLResponse)
+        do {
+            (data, response) = try await session.data(for: request)
+        } catch {
+            throw HostingError.networkError(error)
+        }
+
+        guard let httpResponse = response as? HTTPURLResponse else {
+            throw HostingError.invalidResponse
+        }
+
+        if httpResponse.statusCode >= 200 && httpResponse.statusCode < 300 {
+            if data.isEmpty && T.self == EmptyHostingResponse.self {
+                return EmptyHostingResponse() as! T
+            }
+            do {
+                return try decoder.decode(T.self, from: data)
+            } catch {
+                throw HostingError.decodingError(error)
+            }
+        }
+
+        let errorInfo = try? JSONSerialization.jsonObject(with: data) as? [String: Any]
+        let message = errorInfo?["message"] as? String ?? "HTTP \(httpResponse.statusCode)"
+        let code = errorInfo?["code"] as? String
+        throw HostingError.httpError(statusCode: httpResponse.statusCode, message: message, code: code)
+    }
+
+    private func executeWithRetry<T>(_ operation: () async throws -> T) async throws -> T {
+        var lastError: Error?
+
+        for attempt in 0..<config.retries {
+            do {
+                return try await operation()
+            } catch {
+                lastError = error
+                if config.debug {
+                    print("Attempt \(attempt + 1) failed: \(error)")
+                }
+                if attempt < config.retries - 1 {
+                    try await Task.sleep(nanoseconds: UInt64(1_000_000_000 * (1 << attempt)))
+                }
+            }
+        }
+
+        throw lastError ?? HostingError.invalidResponse
+    }
+}
+
+// MARK: - Private Helpers
+
+private struct EmptyHostingResponse: Decodable {}
+
+private extension String {
+    var urlEncoded: String {
+        addingPercentEncoding(withAllowedCharacters: .urlPathAllowed) ?? self
+    }
+}
diff --git a/sdk/swift/Sources/Synor/Hosting/Types.swift b/sdk/swift/Sources/Synor/Hosting/Types.swift
new file mode 100644
index 0000000..cb9c16e
--- /dev/null
+++ b/sdk/swift/Sources/Synor/Hosting/Types.swift
@@ -0,0 +1,328 @@
+import Foundation
+
+// MARK: - Configuration
+
+/// Configuration for the Synor Hosting client.
+public struct HostingConfig {
+    public let apiKey: String
+    public let endpoint: String
+    public let timeout: TimeInterval
+    public let retries: Int
+    public let debug: Bool
+
+    public init(
+        apiKey: String,
+        endpoint: String = "https://hosting.synor.io/v1",
+        timeout: TimeInterval = 60,
+        retries: Int = 3,
+        debug: Bool = false
+    ) {
+        self.apiKey = apiKey
+        self.endpoint = endpoint
+        self.timeout = timeout
+        self.retries = retries
+        self.debug = debug
+    }
+}
+
+// MARK: - Domain Types
+
+/// Status of a domain.
+public enum DomainStatus: String, Codable, Sendable {
+    case pending
+    case active
+    case expired
+    case suspended
+}
+
+/// A domain registration.
+public struct Domain: Codable, Sendable {
+    public let name: String
+    public let status: DomainStatus
+    public let owner: String
+    public let registeredAt: Int64
+    public let expiresAt: Int64
+    public let autoRenew: Bool
+    public let records: DomainRecord?
+}
+
+/// DNS record for a domain.
+public struct DomainRecord: Codable, Sendable {
+    public let cid: String?
+    public let ipv4: [String]?
+    public let ipv6: [String]?
+    public let cname: String?
+    public let txt: [String]?
+    public let metadata: [String: String]?
+
+    public init(
+        cid: String? = nil,
+        ipv4: [String]? = nil,
+        ipv6: [String]? = nil,
+        cname: String? = nil,
+        txt: [String]? = nil,
+        metadata: [String: String]? = nil
+    ) {
+        self.cid = cid
+        self.ipv4 = ipv4
+        self.ipv6 = ipv6
+        self.cname = cname
+        self.txt = txt
+        self.metadata = metadata
+    }
+}
+
+/// Domain availability check result.
+public struct DomainAvailability: Codable, Sendable {
+    public let name: String
+    public let available: Bool
+    public let price: Double?
+    public let premium: Bool
+}
+
+/// Options for domain registration.
+public struct RegisterDomainOptions: Codable, Sendable {
+    public let years: Int?
+    public let autoRenew: Bool?
+
+    public init(years: Int? = nil, autoRenew: Bool? = nil) {
+        self.years = years
+        self.autoRenew = autoRenew
+    }
+}
+
+/// Response for domain list operations.
+public struct DomainsResponse: Codable {
+    public let domains: [Domain]?
+}
+
+// MARK: - DNS Types
+
+/// Type of DNS record.
+public enum DnsRecordType: String, Codable, Sendable {
+    case A, AAAA, CNAME, TXT, MX, NS, SRV, CAA
+}
+
+/// A DNS record.
+public struct DnsRecord: Codable, Sendable {
+    public let type: DnsRecordType
+    public let name: String
+    public let value: String
+    public let ttl: Int
+    public let priority: Int?
+
+    public init(type: DnsRecordType, name: String, value: String, ttl: Int = 3600, priority: Int? = nil) {
+        self.type = type
+        self.name = name
+        self.value = value
+        self.ttl = ttl
+        self.priority = priority
+    }
+}
+
+/// A DNS zone containing records.
+public struct DnsZone: Codable, Sendable {
+    public let domain: String
+    public let records: [DnsRecord]
+    public let updatedAt: Int64
+}
+
+// MARK: - Deployment Types
+
+/// Status of a deployment.
+public enum DeploymentStatus: String, Codable, Sendable {
+    case pending
+    case building
+    case deploying
+    case active
+    case failed
+    case inactive
+}
+
+/// A deployment.
+public struct Deployment: Codable, Sendable {
+    public let id: String
+    public let domain: String
+    public let cid: String
+    public let status: DeploymentStatus
+    public let url: String
+    public let createdAt: Int64
+    public let updatedAt: Int64
+    public let buildLogs: String?
+    public let errorMessage: String?
+}
+
+/// Options for deploying content.
+public struct DeployOptions: Codable, Sendable {
+    public let domain: String?
+    public let subdomain: String?
+    public let spa: Bool?
+    public let cleanUrls: Bool?
+    public let trailingSlash: Bool?
+
+    public init(
+        domain: String? = nil,
+        subdomain: String? = nil,
+        spa: Bool? = nil,
+        cleanUrls: Bool? = nil,
+        trailingSlash: Bool? = nil
+    ) {
+        self.domain = domain
+        self.subdomain = subdomain
+        self.spa = spa
+        self.cleanUrls = cleanUrls
+        self.trailingSlash = trailingSlash
+    }
+}
+
+/// Response for deployment list operations.
+public struct DeploymentsResponse: Codable {
+    public let deployments: [Deployment]?
+}
+
+// MARK: - SSL Types
+
+/// Status of an SSL certificate.
+public enum CertificateStatus: String, Codable, Sendable {
+    case pending
+    case issued
+    case expired
+    case revoked
+}
+
+/// An SSL certificate.
+public struct Certificate: Codable, Sendable {
+    public let domain: String
+    public let status: CertificateStatus
+    public let autoRenew: Bool
+    public let issuer: String
+    public let issuedAt: Int64?
+    public let expiresAt: Int64?
+    public let fingerprint: String?
+}
+
+/// Options for SSL provisioning.
+public struct ProvisionSslOptions: Codable, Sendable {
+    public let includeWww: Bool?
+    public let autoRenew: Bool?
+
+    public init(includeWww: Bool? = nil, autoRenew: Bool? = nil) {
+        self.includeWww = includeWww
+        self.autoRenew = autoRenew
+    }
+}
+
+// MARK: - Site Configuration Types
+
+/// Site configuration.
+public struct SiteConfig: Codable, Sendable {
+    public let domain: String
+    public let cid: String?
+    public let headers: [String: String]?
+    public let redirects: [RedirectRule]?
+    public let errorPages: [String: String]?
+    public let spa: Bool
+    public let cleanUrls: Bool
+    public let trailingSlash: Bool
+}
+
+/// A redirect rule.
+public struct RedirectRule: Codable, Sendable {
+    public let source: String
+    public let destination: String
+    public let statusCode: Int
+    public let permanent: Bool
+
+    public init(source: String, destination: String, statusCode: Int = 301, permanent: Bool = true) {
+        self.source = source
+        self.destination = destination
+        self.statusCode = statusCode
+        self.permanent = permanent
+    }
+}
+
+// MARK: - Analytics Types
+
+/// Analytics data for a site.
+public struct AnalyticsData: Codable, Sendable {
+    public let domain: String
+    public let period: String
+    public let pageViews: Int64
+    public let uniqueVisitors: Int64
+    public let bandwidth: Int64
+    public let topPages: [PageView]
+    public let topReferrers: [Referrer]
+    public let topCountries: [Country]
+}
+
+/// Page view statistics.
+public struct PageView: Codable, Sendable {
+    public let path: String
+    public let views: Int64
+}
+
+/// Referrer statistics.
+public struct Referrer: Codable, Sendable {
+    public let referrer: String
+    public let count: Int64
+}
+
+/// Country statistics.
+public struct Country: Codable, Sendable {
+    public let country: String
+    public let count: Int64
+}
+
+/// Options for analytics queries.
+public struct AnalyticsOptions: Codable, Sendable {
+    public let period: String?
+    public let start: String?
+    public let end: String?
+
+    public init(period: String? = nil, start: String? = nil, end: String? = nil) {
+        self.period = period
+        self.start = start
+        self.end = end
+    }
+}
+
+/// Response for cache purge operations.
+public struct PurgeResponse: Codable {
+    public let purged: Int64
+}
+
+// MARK: - Error Types
+
+/// Errors that can occur during hosting operations.
+public enum HostingError: Error, LocalizedError {
+    case clientClosed
+    case httpError(statusCode: Int, message: String, code: String?)
+    case networkError(Error)
+    case encodingError(Error)
+    case decodingError(Error)
+    case invalidResponse
+
+    public var errorDescription: String? {
+        switch self {
+        case .clientClosed:
+            return "Client has been closed"
+        case .httpError(let statusCode, let message, _):
+            return "HTTP \(statusCode): \(message)"
+        case .networkError(let error):
+            return "Network error: \(error.localizedDescription)"
+        case .encodingError(let error):
+            return "Encoding error: \(error.localizedDescription)"
+        case .decodingError(let error):
+            return "Decoding error: \(error.localizedDescription)"
+        case .invalidResponse:
+            return "Invalid response"
+        }
+    }
+}
+
+// MARK: - Health Check
+
+/// Health check response.
+public struct HostingHealthResponse: Codable {
+    public let status: String
+}