0x Protocol

0x is an open protocol that enables the peer-to-peer exchange of assets on the blockchain. The protocol serves as an open standard and common building block for any developer needing exchange functionality. In addition to the externally-audited smart contracts, 0x also offers developer tools tailored to the ecosystem and open-access to a pool of shared liquidity. Developers can integrate with 0x at the smart contract or application layer. Whether you're looking to offer limit orders in your app, or utilize limit orders in MEV searching strategies, the 0x API Orderbook is your go to source.