IQuoter

Last modified: June 14, 2026

Supports quoting the calculated amounts from exact input or exact output swaps

These functions are not marked view because they rely on calling non-view functions and reverting to compute the result. They are also not gas efficient and should not be called on-chain.

Functions

quoteExactInput

  function quoteExactInput(
    bytes path,
    uint256 amountIn
  ) external returns (uint256 amountOut)

Returns the amount out received for a given exact input swap without executing the swap

Parameters:

Name	Type	Description
`path`	bytes	The path of the swap, i.e. each token pair and the pool fee
`amountIn`	uint256	The amount of the first token to swap

Return Values:

Name	Type	Description
`amountOut`	uint256	The amount of the last token that would be received

quoteExactInputSingle

  function quoteExactInputSingle(
    address tokenIn,
    address tokenOut,
    uint24 fee,
    uint256 amountIn,
    uint160 sqrtPriceLimitX96
  ) external returns (uint256 amountOut)

Returns the amount out received for a given exact input but for a swap of a single pool

Parameters:

Name	Type	Description
`tokenIn`	address	The token being swapped in
`tokenOut`	address	The token being swapped out
`fee`	uint24	The fee of the token pool to consider for the pair
`amountIn`	uint256	The desired input amount
`sqrtPriceLimitX96`	uint160	The price limit of the pool that cannot be exceeded by the swap

Return Values:

Name	Type	Description
`amountOut`	uint256	The amount of `tokenOut` that would be received

quoteExactOutput

  function quoteExactOutput(
    bytes path,
    uint256 amountOut
  ) external returns (uint256 amountIn)

Returns the amount in required for a given exact output swap without executing the swap

Parameters:

Name	Type	Description
`path`	bytes	The path of the swap, i.e. each token pair and the pool fee
`amountOut`	uint256	The amount of the last token to receive

Return Values:

Name	Type	Description
`amountIn`	uint256	The amount of first token required to be paid

quoteExactOutputSingle

  function quoteExactOutputSingle(
    address tokenIn,
    address tokenOut,
    uint24 fee,
    uint256 amountOut,
    uint160 sqrtPriceLimitX96
  ) external returns (uint256 amountIn)

Returns the amount in required to receive the given exact output amount but for a swap of a single pool

Parameters:

Name	Type	Description
`tokenIn`	address	The token being swapped in
`tokenOut`	address	The token being swapped out
`fee`	uint24	The fee of the token pool to consider for the pair
`amountOut`	uint256	The desired output amount
`sqrtPriceLimitX96`	uint160	The price limit of the pool that cannot be exceeded by the swap

Return Values:

Name	Type	Description
`amountIn`	uint256	The amount required as the input for the swap in order to receive `amountOut`