Introduction

What is the 0x Cross Chain API?

The 0x Cross Chain API is a fast, flexible API that lets developers programatically access tokens across various blockchains, enabling cross-chain swap functionality in any app or wallet. It's designed to provide the same powerful aggregation and transaction-building features that 0x offers for same-chain swaps — now available across EVM and Solana chains.

Whether you're building a new application, or expanding the offering of your existing product, this API helps you integrate cross-chain token swaps with minimal overhead and maximum efficiency.