okx
Introduction
What is OKX OS
Preparation
Supported Networks
Wallet API
Introduction
Quick Start
On-Chain Information Query
Wallet Account Management
Transaction Broadcasting
Webhook
Signing SDK
Resources
DEX API
Introduction
Swap APICross-chain APILimit order API
Quick start
Swap API
Cross-chain API
Limit order API
DEX Widget
Marketplace API
Introduction
Runes API
Market API
BTC Ordinals API
Fractal Ordinals API
Error codes
DeFi API
Introduction
Quickstart
API reference
Error code
More resources
General specificationApply to display DAppsApp Universal LinkChangelogOKX Web3 Build User Agreement
DEX API

Introduction#

Welcome to OKX DEX’s developer documentation. OKX DEX is an all-in-one trading aggregator for multi-chain and cross-chain transactions. You can use it to build the Web3 trading services and applications you need, suitable for various scenarios such as Web3 wallets, DApp projects, and DeFi projects.

Multi-chain support#

We support 20 networks, including EVM networks, Solana, TRON, and other networks.

Aggregating multiple cross-chain bridges and DEXs#

We aggregate 18 cross-chain bridges, including third-party bridges and official bridges, to guarantee optimal received token amounts. We aggregate over 400 decentralized exchanges, providing the best quotes.

Stability and high availability#

Our API response time is within 100 milliseconds, while fetching optimal quote routes completely free of charge.

Swap API
Swap
Cross-chain API
Cross-chain
Limit order API
Limit order