> For the complete documentation index, see [llms.txt](https://docs.warpx.exchange/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.warpx.exchange/for-developers/warpx-v3/abis/swaprouter.md).

# SwapRouter

```json
[
  {
    "inputs": [
      {
        "name": "data",
        "type": "bytes[]"
      }
    ],
    "name": "multicall",
    "outputs": [
      {
        "name": "results",
        "type": "bytes[]"
      }
    ],
    "stateMutability": "payable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "components": [
          {
            "internalType": "address",
            "name": "tokenIn",
            "type": "address"
          },
          {
            "internalType": "address",
            "name": "tokenOut",
            "type": "address"
          },
          {
            "internalType": "uint24",
            "name": "fee",
            "type": "uint24"
          },
          {
            "internalType": "address",
            "name": "recipient",
            "type": "address"
          },
          {
            "internalType": "uint256",
            "name": "deadline",
            "type": "uint256"
          },
          {
            "internalType": "uint256",
            "name": "amountIn",
            "type": "uint256"
          },
          {
            "internalType": "uint256",
            "name": "amountOutMinimum",
            "type": "uint256"
          },
          {
            "internalType": "uint160",
            "name": "sqrtPriceLimitX96",
            "type": "uint160"
          }
        ],
        "internalType": "struct ISwapRouter.ExactInputSingleParams",
        "name": "params",
        "type": "tuple"
      }
    ],
    "name": "exactInputSingle",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "amountOut",
        "type": "uint256"
      }
    ],
    "stateMutability": "payable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "components": [
          {
            "internalType": "address",
            "name": "tokenIn",
            "type": "address"
          },
          {
            "internalType": "address",
            "name": "tokenOut",
            "type": "address"
          },
          {
            "internalType": "uint24",
            "name": "fee",
            "type": "uint24"
          },
          {
            "internalType": "address",
            "name": "recipient",
            "type": "address"
          },
          {
            "internalType": "uint256",
            "name": "deadline",
            "type": "uint256"
          },
          {
            "internalType": "uint256",
            "name": "amountOut",
            "type": "uint256"
          },
          {
            "internalType": "uint256",
            "name": "amountInMaximum",
            "type": "uint256"
          },
          {
            "internalType": "uint160",
            "name": "sqrtPriceLimitX96",
            "type": "uint160"
          }
        ],
        "internalType": "struct ISwapRouter.ExactOutputSingleParams",
        "name": "params",
        "type": "tuple"
      }
    ],
    "name": "exactOutputSingle",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "amountIn",
        "type": "uint256"
      }
    ],
    "stateMutability": "payable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "uint256",
        "name": "amountMinimum",
        "type": "uint256"
      },
      {
        "internalType": "address",
        "name": "recipient",
        "type": "address"
      }
    ],
    "name": "unwrapWETH9",
    "outputs": [],
    "stateMutability": "payable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "recipient",
        "type": "address"
      }
    ],
    "name": "refundETH",
    "outputs": [],
    "stateMutability": "payable",
    "type": "function"
  }
]
```