> For the complete documentation index, see [llms.txt](https://docs.butternetwork.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.butternetwork.io/butter-swap-integration/butter-api-for-routing/get-routeandswap.md). # GET /routeAndSwap (deprecated) *Note*: this endpoint is deprecated, please use `/route` and `/swap` instead. GET get best routes and generate swap transaction calldata to swap in Butter router ### Request Parameters | Name | Location | Type | Required | Description | | --------------- | -------- | ------ | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | fromChainId | query | string | yes | source chain id, the supported chain ID list can be get from endpiont /supportedChainInfo | | toChainId | query | string | yes | destination chain id | | amount | query | string | yes | amount of source token | | tokenInAddress | query | string | yes | address of source token, use 0x0000000000000000000000000000000000000000 for native token on most blockchains, T9yD14Nj9j7xAB4dbGeiX9h8unkKHxuWwb for native token on Tron | | tokenOutAddress | query | string | yes | address of destination token | | type | query | string | yes | swap type, one of "exactIn" and "exactOut" | | slippage | query | string | yes | slippage of swap, a integer in range \[0, 5000], e.g, 100 means 1%. For cross chain swap, the min slippage is 150， for cross chain from/to TON/BTC, min slippage is 300 | | from | query | string | yes | sender address on source chain | | receiver | query | string | yes | receiver address on destination chain | | entrance | query | string | yes | entrance of swap, please contact us for applying your dedicated entrance. | | callData | query | string | no | encoded call data if receiver is a contract | | caller | query | string | no | caller of butter router contract, e.g., the smart contract address who calls butter rotuer, or the user account who directly calls butter router | | affiliate | query | string | no | affiliate nickname and fee rate, the format is '\\[:rate]'. If fee rate is not provided, the default base rate (aka source rate) will be used, note that the rate could not be greater than max rate (aka target rate). E.g., for nickname 'butter' which has configured base rate to 0.1% and max rate to 1%, affiliate=butter means the affiliate charges 0.1% affiliate fee and affiliate=butter:50 means it charges 0.5% affiliate fee. For cross chain swap, you can specify multiple affiliates, but for same chain swap, at most one affilate can be accepted. | | referrer | query | string | no | referrer address to receive the referrer(affiliate) fee in same chain swap. It is required for Solana same chain swap, and optional for EVM same chain swap. If not provided in EVM same chain swap, the default affiliate wallet will be used. | ### Request Example ```bash GET /routeAndSwap?fromChainId=1&toChainId=56&amount=1&tokenInAddress=0x0000000000000000000000000000000000000000&tokenOutAddress=0x0000000000000000000000000000000000000000&type=exactIn&slippage=150&entrance=&from=0x2D4C407BBe49438ED859fe965b140dcF1aaB71a9&receiver=0x2D4C407BBe49438ED859fe965b140dcF1aaB71a9 ``` ### Responses Structure The response contains the following fields: | Field | Type | Description | | ------- | ------ | ---------------------------------------------------------------------------------------------------------------- | | errno | number | Error code. `0` means success, other values indicate errors, see [error code list](#errors). | | message | string | Response message. If the request was successful it is `success`, otherwise it gives corresponding error message. | | data | array | Contains data on the swap route path, fees, etc. | #### `data` Field The `data` field contains an array with one or more route and swap data. Each item has the following fields: | Field | Type | Description | | ------- | ------ | -------------------------------------------------------------------------------------------------------------------------------------- | | route | object | The detailed route information, please refer to [route](/butter-swap-integration/butter-api-for-routing/get-route.md) API for details. | | txParam | object | The swap transaction information, please refer to [swap](/butter-swap-integration/butter-api-for-routing/get-swap.md) API for details. | ### Response Examples 1. get best routes and swap transaction calldata successfully > 200 Response ```json { "errno": 0, "message": "success", "data": [ { "route": { "diff": "0", "bridgeFee": { "amount": "0.00338", "symbol": "WETH", "address": "0x05aB928d446d8ce6761e368c8e7bE03C3168A9ec", "chainId": 22776, "in": { "amount": "0.0", "token": { "address": "0x05aB928d446d8ce6761e368c8e7bE03C3168A9ec", "name": "Mapped Wrapped Ether", "decimals": 18, "symbol": "WETH", "icon": "https://s3.amazonaws.com/map-static-file/mapSwap/ethereum/0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2/logo.png" } }, "out": { "amount": "0.00338", "token": { "address": "0x05aB928d446d8ce6761e368c8e7bE03C3168A9ec", "name": "Mapped Wrapped Ether", "decimals": 18, "symbol": "WETH", "icon": "https://s3.amazonaws.com/map-static-file/mapSwap/ethereum/0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2/logo.png" } }, "affiliate": { "amount": "0.0", "token": { "address": "0x05aB928d446d8ce6761e368c8e7bE03C3168A9ec", "decimals": 18, "symbol": "ETH", "icon": "https://s3.amazonaws.com/map-static-file/mapSwap/ethereum/0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2/logo.png" }, "list": [], "data": "0x00" } }, "tradeType": 0, "gasFee": { "amount": "0.00067511265096", "symbol": "ETH", "inUSD": "2.355691630386166" }, "swapFee": { "nativeFee": "0.0", "tokenFee": "0.0" }, "feeConfig": { "feeType": 1, "referrer": "0x200AEe9ba7040d778922A763CE8A50948d61AFF5", "rateOrNativeFee": 0 }, "gasEstimated": "170000", "gasEstimatedTarget": "841800", "timeEstimated": 1080, "hash": "0x9e9a0b7e4c0e06b2242b49011cfd06665b3934397aba2d52b0f968f11933cac3", "entrance": "", "timestamp": 1735105523772, "hasLiquidity": true, "srcChain": { "chainId": "1", "tokenIn": { "address": "0x0000000000000000000000000000000000000000", "name": "ETH", "decimals": 18, "symbol": "ETH", "icon": "https://s3.amazonaws.com/map-static-file/mapSwap/ethereum/0x0000000000000000000000000000000000000000/logo.png" }, "tokenOut": { "address": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2", "name": "Wrapped Ether", "decimals": 18, "symbol": "WETH", "icon": "https://s3.amazonaws.com/map-static-file/mapSwap/ethereum/0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2/logo.png" }, "totalAmountIn": "1.0", "totalAmountOut": "1.0", "route": [ { "amountIn": "1.0", "amountOut": "1.0", "dexName": "", "path": [] } ], "totalAmountOutUSD": "3489.33119093", "bridge": "Butter" }, "bridgeChain": { "chainId": "22776", "tokenIn": { "address": "0x05aB928d446d8ce6761e368c8e7bE03C3168A9ec", "name": "Mapped Wrapped Ether", "decimals": 18, "symbol": "WETH", "icon": "https://s3.amazonaws.com/map-static-file/mapSwap/ethereum/0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2/logo.png" }, "tokenOut": { "address": "0x05aB928d446d8ce6761e368c8e7bE03C3168A9ec", "name": "Mapped Wrapped Ether", "decimals": 18, "symbol": "WETH", "icon": "https://s3.amazonaws.com/map-static-file/mapSwap/ethereum/0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2/logo.png" }, "totalAmountIn": "1.0", "totalAmountOut": "0.99662", "route": [ { "amountIn": "1.0", "amountOut": "0.99662", "dexName": "", "path": [] } ], "bridge": "Butter" }, "dstChain": { "chainId": "56", "tokenIn": { "address": "0x2170Ed0880ac9A755fd29B2688956BD959F933F8", "name": "Wrapped ETH", "decimals": 18, "symbol": "WETH", "icon": "https://s3.amazonaws.com/map-static-file/mapSwap/ethereum/0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2/logo.png" }, "tokenOut": { "address": "0x0000000000000000000000000000000000000000", "name": "BNB", "decimals": 18, "symbol": "BNB", "icon": "https://s3.amazonaws.com/map-static-file/mapSwap/binance-smart-chain/0x0000000000000000000000000000000000000000/logo.png" }, "totalAmountIn": "0.99662", "totalAmountOut": "4.939139219083695572", "route": [ { "amountIn": "0.597972", "amountOut": "2.963763799469397691", "dexName": "PancakeswapV3", "path": [ { "id": "0x62Fcb3C1794FB95BD8B1A97f6Ad5D8a7e4943a1e", "tokenIn": { "address": "0x2170Ed0880ac9A755fd29B2688956BD959F933F8", "name": "Wrapped ETH", "decimals": 18, "symbol": "WETH", "icon": "https://s3.amazonaws.com/map-static-file/mapSwap/ethereum/0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2/logo.png" }, "tokenOut": { "address": "0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c", "name": "Wrapped BNB", "decimals": 18, "symbol": "WBNB", "icon": "https://s3.amazonaws.com/map-static-file/mapSwap/binance-smart-chain/0xbb4cdb9cbd36b01bd1cbaebf2de08d9173bc095c/logo.png" }, "fee": "100" } ], "priceImpact": "0.0315022" }, { "amountIn": "0.398648", "amountOut": "1.975375419614297881", "dexName": "PancakeswapV3", "path": [ { "id": "0xD0e226f674bBf064f54aB47F42473fF80DB98CBA", "tokenIn": { "address": "0x2170Ed0880ac9A755fd29B2688956BD959F933F8", "name": "Wrapped ETH", "decimals": 18, "symbol": "WETH", "icon": "https://s3.amazonaws.com/map-static-file/mapSwap/ethereum/0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2/logo.png" }, "tokenOut": { "address": "0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c", "name": "Wrapped BNB", "decimals": 18, "symbol": "WBNB", "icon": "https://s3.amazonaws.com/map-static-file/mapSwap/binance-smart-chain/0xbb4cdb9cbd36b01bd1cbaebf2de08d9173bc095c/logo.png" }, "fee": "500" } ], "priceImpact": "0.0552814" } ], "totalAmountOutUSD": "3477.462882862167", "bridge": "Butter" }, "totalAmountInUSD": "3489.33119093", "totalAmountOutUSD": "3477.462882862167", "contract": "0xEE030ec6F4307411607E55aCD08e628Ae6655B86", "minAmountOut": { "amount": "4.865052130797440139", "symbol": "BNB" } }, "txParam": { "errno": 0, "message": "success", "data": [ { "to": "0xEE030ec6F4307411607E55aCD08e628Ae6655B86", "data": 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}, { "type": "bytes", "value": "0x" }, { "type": "bytes", "value": "0x0000000000000000000000000000000000000000000000000000000000000001000000000000000000000000200aee9ba7040d778922a763ce8a50948d61aff50000000000000000000000000000000000000000000000000000000000000000" } ] } ] } } ] } ``` 2. fail to get route and/or swap transaction calldata > 200 Response ``` {    "errno": ,    "message": } ``` **Note**: error code can be found in [here](/butter-swap-integration/butter-api-for-routing/error-code-list.md) --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.butternetwork.io/butter-swap-integration/butter-api-for-routing/get-routeandswap.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.