In June 2022, the following liquidity sources were added to 0x Swap API to ensure we’re providing developers access to the deepest liquidity and best executed swap prices across Ethereum, BNB Chain, Polygon, Avalanche, Fantom, Celo, and Optimism.

• BNB Chain: Knightswap and MDEX
• Polygon: Meshswap
• Optimism: Velodrome

We commonly receive requests from developers to add new liquidity sources and provide updates when new ones are added. Moving forward, we’ll be sharing these updates at a regular cadence.

Interested in building on 0x?

Swap API is a free-to-use, professional-grade Web3 liquidity aggregation and smart order routing service trusted by businesses like Coinbase, MetaMask, Brave, Matcha, Zapper, and GameStop. By using Swap API to easily and reliably tap into aggregated multi-chain DEX liquidity you’ll have more time to focus on what matters: your product.

The API finds the best prices from 100+ liquidity sources, both public (AMMs) and private (professional market makers), across a growing number of blockchains, including Ethereum, BNB Chain, Polygon, Avalanche, Fantom, Celo, and Optimism.

To get started with Swap API, visit 0x.org for more info and check out our developer docs.