--- updatedAt: 2026-05-14T11:27:34.000Z --- Fetch the complete documentation index at: https://docs.blockdaemon.com/llms.txt. Use this file to discover all available pages before exploring further. Append .md to any documentation page URL to get its markdown version. # Get Bridge Swap Price This endpoint provides a real‑time swap quotation for transferring tokens between two blockchain networks using a designated bridge. It calculates the estimated amount of destination tokens that you would receive based on a given input token amount and token pair, factoring in the current liquidity and fees across the specified source and destination chains. > 💡 **Compute Unit Value:** `40` (Fixed) # OpenAPI definition ```json { "openapi": "3.0.0", "info": { "contact": { "name": "Blockdaemon", "email": "info@blockdaemon.com" }, "description": "The Blockdaemon DeFi API provides a single interface to a multitude of DeFi projects and blockchains", "title": "Blockdaemon DeFi API", "version": "1.0.0", "x-logo": { "altText": "Blockdaemon logo", "backgroundColor": "#fafafa", "url": "https://storage.googleapis.com/blockdaemon-app-static-images/marketing/PNG/dark-logo.png" } }, "externalDocs": { "description": "Blockdaemon DeFi documentation", "url": "http://www.blockdaemon.com/api/defi" }, "servers": [ { "url": "https://svc.blockdaemon.com" } ], "components": { "securitySchemes": { "ApiKeyAuth": { "type": "apiKey", "in": "header", "name": "X-API-Key", "description": "`X-API-Key: ` header must be set to authenticate API requests.You can create tokens in the \"Configure\" tab of your API access area at https://app.blockdaemon.com." } } }, "tags": [ { "name": "bridge", "description": "API endpoints for operations related to bridges" } ], "security": [ { "ApiKeyAuth": [] } ], "paths": { "/defi/v1/bridge/price": { "get": { "tags": [ "bridge" ], "summary": "Get Bridge Swap Price", "description": "This endpoint provides a real‑time swap quotation for transferring tokens between two blockchain networks using a designated bridge. It calculates the estimated amount of destination tokens that you would receive based on a given input token amount and token pair, factoring in the current liquidity and fees across the specified source and destination chains.\n\n> 💡 \n**Compute Unit Value:** `40` (Fixed)", "operationId": "bridgePrice", "parameters": [ { "name": "srcChainId", "in": "query", "required": false, "schema": { "type": "string", "description": "The unique chain ID to specify the source chain. Find more [here](https://docs.blockdaemon.com/docs/defi-api-supported-protocols#supported-chains).", "example": "1" }, "description": "The unique chain ID to specify the source chain. Find more [here](https://docs.blockdaemon.com/docs/defi-api-supported-protocols#supported-chains)." }, { "name": "bridgeId", "in": "query", "required": false, "schema": { "type": "string", "description": "The unique ID to specify the bridge protocol for routing cross-chain queries or transactions. Find more [here](https://docs.blockdaemon.com/docs/defi-api-supported-protocols#supported-bridges-protocols).", "enum": [ "600", "300", "400", "500", "100" ], "example": "600" }, "description": "The unique ID to specify the bridge protocol for routing cross-chain queries or transactions. Find more [here](https://docs.blockdaemon.com/docs/defi-api-supported-protocols#supported-bridges-protocols)." }, { "name": "dstChainId", "in": "query", "required": true, "schema": { "type": "string", "description": "The unique chain ID to specify the destination chain. Find more [here](https://docs.blockdaemon.com/docs/defi-api-supported-protocols#supported-chains).", "example": "1" }, "description": "The unique chain ID to specify the destination chain. Find more [here](https://docs.blockdaemon.com/docs/defi-api-supported-protocols#supported-chains)." }, { "name": "srcTokenSymbol", "in": "query", "required": false, "schema": { "type": "string", "description": "Symbol of the source token.", "example": "usdt" }, "description": "Symbol of the source token." }, { "name": "dstTokenSymbol", "in": "query", "required": false, "schema": { "type": "string", "description": "Symbol of the destination token.", "example": "ETH" }, "description": "Symbol of the destination token." }, { "name": "srcTokenAddress", "in": "query", "required": false, "schema": { "type": "string", "description": "Contract address of the source (input) token on the source chain. For EVM chains, use a checksummed hex address (e.g., 0x...). Either srcTokenAddress or srcTokenSymbol must be provided.", "example": "0xdAe2F6EdDdA6fb4fb60cc02633DE27e2b431B402" }, "description": "Contract address of the source (input) token on the source chain. For EVM chains, use a checksummed hex address (e.g., 0x...). Either srcTokenAddress or srcTokenSymbol must be provided." }, { "name": "dstTokenAddress", "in": "query", "required": false, "schema": { "type": "string", "description": "Contract address of the destination (output) token on the destination chain. For EVM chains, use a checksummed hex address (e.g., 0x...). Either dstTokenAddress or dstTokenSymbol must be provided.", "example": "0xdAe2F6EdDdA6fb4fb60cc02633DE27e2b431B402" }, "description": "Contract address of the destination (output) token on the destination chain. For EVM chains, use a checksummed hex address (e.g., 0x...). Either dstTokenAddress or dstTokenSymbol must be provided." }, { "name": "amountIn", "in": "query", "required": true, "schema": { "type": "string", "description": "Amount of the input token to provide, specified in the token's smallest denomination (base units). Do not send human-readable decimal values. Examples: to swap 1 WETH (18 decimals), use \"1000000000000000000\"; to swap 1 USDC (6 decimals), use \"1000000\".", "example": "1000000000000000000" }, "description": "Amount of the input token to provide, specified in the token's smallest denomination (base units). Do not send human-readable decimal values. Examples: to swap 1 WETH (18 decimals), use \"1000000000000000000\"; to swap 1 USDC (6 decimals), use \"1000000\"." }, { "name": "vsCurrencies", "in": "query", "required": false, "schema": { "type": "string", "description": "A comma-separated list of currency symbols to convert the amount into, such as 'USD,EUR'. This parameter is optional and allows retrieving values in multiple fiat currencies.", "example": "usd,eur,gbp" }, "description": "A comma-separated list of currency symbols to convert the amount into, such as 'USD,EUR'. This parameter is optional and allows retrieving values in multiple fiat currencies." } ], "responses": { "200": { "description": "Successful response", "content": { "application/json": { "schema": { "type": "object", "properties": { "status": { "type": "number", "description": "Numeric status code indicating success or failure of the API call", "example": 200 }, "msg": { "type": "string", "description": "Human-readable message describing the API result or error" }, "data": { "type": "object", "properties": { "srcChainId": { "type": "string", "description": "Source blockchain network ID", "example": "1" }, "dstChainId": { "type": "string", "description": "Destination blockchain network ID", "example": "1" }, "srcTokenSymbol": { "type": "string", "description": "Symbol of the source token", "example": "usdt" }, "dstTokenSymbol": { "type": "string", "description": "Symbol of the destination token", "example": "ETH" }, "amountIn": { "type": "string", "description": "Amount of input token in a swap", "example": "10000" }, "amountsOut": { "type": "array", "items": { "type": "string" }, "description": "Expected output amounts from swaps or conversions" }, "priceImpact": { "type": "object", "description": "Price impact details for the swap", "properties": { "percentage": { "type": "string", "description": "Price impact as a percentage (negative indicates unfavorable slippage)", "example": "-0.1368" }, "value": { "type": "string", "description": "Price impact value in USD", "example": "-0.116555" } } } } } }, "example": { "status": 200, "msg": "success", "data": { "srcChainId": "1", "dstChainId": "10", "srcTokenSymbol": "USDT", "dstTokenSymbol": "USDC", "srcTokenAddress": "0xdac17f958d2ee523a2206206994597c13d831ec7", "dstTokenAddress": "0x0b2c639c533813f4aa9d7837caf62653d097ff85", "amountIn": "1000", "amountsOut": [ "1000", "1000339710295989" ], "prices": { "usd": [ { "chainId": "1", "USDT": "1.0004228921119596" }, { "chainId": "1", "DAI": "0.9996480800961153" } ] }, "priceImpact": { "percentage": "0.4452", "value": "0.039700" } } } } } } } }, "x-bd-cu": "40", "x-bd-cu-type": "fixed", "x-internal": false } } }, "x-readme": { "explorer-enabled": true, "proxy-enabled": true } } ```