0x Swap API

0x Swap API is a comprehensive liquidity aggregation API that enables developers to embed powerful token trading functionality into any Web3 application with just a few lines of code. The API provides access to over 45 million tokens across 16 EVM networks with aggregated liquidity from 130+ decentralized exchanges.

Key Features

Best-in-Class Routing

The 0x Argon Router delivers advanced multihop and multiplex routing to find the optimal trading path across multiple liquidity sources including Uniswap, SushiSwap, Curve, Balancer, Dodo, Lido, and many more. This smart order routing consistently delivers the best prices for users.

Exclusive RFQ Liquidity

0x RFQ (Request for Quote) provides access to exclusive liquidity from sophisticated professional market makers. RFQ orders outperform AMMs on price 46% of the time where available, giving integrators a competitive edge.

MEV and Slippage Protection

Built-in proprietary Slippage Protection shields users from sandwich attacks and MEV extraction. Users save an average of 50-80% on slippage compared to unprotected trades.

Token Tax Support

State-of-the-art support for tokens with buy/sell taxes, enabling trading of memecoins and other taxed tokens that many competitors cannot handle.

Multi-Chain Coverage

Available on Ethereum, Base, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Scroll, Linea, Blast, Mode, Mantle, Unichain, Berachain, Ink, Plasma, Sonic, and Monad.

Monetization

Swap API includes built-in monetization features allowing integrators to:

• Set percentage-based trading fees
• Designate fee recipient addresses
• Capture positive slippage from trades
• Collect fees in either buy or sell tokens

Performance

• 99.92% historical uptime
• <250ms median response time
• 4.4% revert rate (lowest in DeFi)
• Battle-tested since 2017

Integration

Developers can integrate Swap API in 5 minutes or less with comprehensive documentation, code examples, and SDKs. The API is used by 521+ projects including MetaMask, Coinbase Wallet, Phantom, and GameStop.