Socket Docs

Exact Output Quoting lets you target a specific destination amount and have Socket work backwards to the required input. Instead of “swap 100 USDC and see what I get,” you ask “deliver exactly 100 USDC on the destination and tell me the input needed.”

How it works

Set quoteType on the /v3/swap/quote request:

`quoteType`	Meaning
`EXACT_INPUT`	Default. Fix `inputAmount`, receive a quoted output.
`EXPECTED_OUTPUT`	Target `outputAmount`; input is estimated.
`EXACT_OUTPUT`	Guarantee `outputAmount`; input is solved for.

Output modes require outputAmount (and you omit inputAmount). The response echoes back quoteType, and matching routes may carry the MIN_INPUT route tag so you can rank by the smallest input.

API usage

GET /v3/swap/quote?userOps=tx&quoteType=EXACT_OUTPUT&outputAmount=100000000&...

Notes:

Available on eligible direct tx providers only.
Not compatible with Incognito Mode.

See the Socket API guide for the full quote-to-execution flow.