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XO Swap API

Build multichain swaps with a focused API for discovery, pricing, and order execution.

Four-step API lifecycle: discover assets, price the swap, execute the order, and track its status — Both API versions cover the same lifecycle. The version you choose changes how pricing, routing, and transaction creation are handled.

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

Choose Your API

V3 APIStable

Flexible integration flows with production-ready endpoints.

Explore V3 →V4 APIBeta

One streamlined API that automatically finds the best swap route.

Resources

Terminology - Key terms and definitions
Available Networks - V3 coverage and V4 availability
Changelog - API and documentation history

Last updated on August 5, 2026