XO Swap API

This API allows you to: fetch exchangeable pairs, preview the amount you will receive, and execute swaps.

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Authorization Required: All API requests require specific headers. See the Authorization guide for details.

API Versions

V3 allows you to integrate different flows, giving you more flexibility on what to use.

V4 allows you to get best route for a swap without much boilerplate. One API that wraps all types of swaps.

Last updated on February 6, 2026