Welcome to 0x
0x allows builders to embed swaps in their onchain apps. Tap into aggregated liquidity from 130+ sources, across 15+ EVM chains with the most efficient trade execution. Our suite of APIs has processed over 60M+ million transactions and $154B+ in volume from more than 9+ million users trading on apps like Coinbase Wallet, Robinhood Wallet, Phantom, MetaMask, Zerion, Zapper, and more.
See our list of supported chains.
Get started for free, visit the 0x Dashboard to create an account and get your live API keys.
New to 0x?
- We recommend starting off with an Introduction to 0x.
Get Started Building
🏁 Getting Started
- Set up a 0x account and get started building
Explore 0x APIs
🔄 Swap API
- Easily add crypto trading into your app with a single API. Access 100+ exchanges and thousands of tokens with the Swap API on the most popular networks
⛽ Gasless API
- Simplify defi with end-to-end gasless transactions. Abstract away the complexities of token approvals and gas with Gasless API.
📊 Trade Anlaytics API
- Gain actionable insights with programmatic access to historical trades executed via your apps using 0x Swap and Gasless APIs.
Liquidity Providers
🌊 Liquidity Providers
- Request to add your AMM or RFQ liquidity to the 0x API
Developer Resources
📚 Dev Resources
- 0x Cheat Sheet
- Supported Chains
- 0x Contracts
- Glossary
- Issues & Error Codes
- FAQs & Troubleshooting
- Access 0x Transaction Data
- Buy/Sell Tax Support
- Rate Limits
- System Status
💻 0x Dashboard
- Get live API keys, create and manage your apps