Quote a swap by desired output

post/dex/swap/checkOutput

The reverse quote — what must go in for amountOut to come out. Returns 422 when the pool cannot produce that much.

Request body

LDSwapOutputRequest · application/json

200Quote for the requested outputLDSwapQuote▶

ergInbooleanrequired
amountInstringrequired
Total handed to the pool, fees included. Decimal string.
protocolFeestringrequired
Taken out of the input and set aside for liquidity providers. Decimal string.
ammFeestringrequired
The curve's own fee on the remainder; stays in the pool. Decimal string.
tradedInstringrequired
What actually reaches the curve — amountIn less protocolFee. Decimal string.
amountOutstringrequired
What comes back. Decimal string.
totalFeestringrequired
Every fee the swap pays, on the input side. Decimal string.
spotBeforenumber · doublerequired
Pre-trade price, ignoring fees and depth
spotAfternumber · doublerequired
Price once the swap lands, ignoring fees
executionPricenumber · doublerequired
Output per unit of input, fees and depth included
priceImpactnumber · doublerequired
How far execution fell short of the pre-trade price, as a fraction
isExecutablebooleanrequired
False when the pool would reject the swap — nothing reaches the curve, or the output would meet or exceed the reserve it is drawn from.

400Malformed body, or a non-positive amount.ApiError▶

422Pool cannot produce the requested outputApiError▶

503Node unavailable. Retry.ApiError▶

defaultErrorApiError▶