0x (ZRX) is an open-source protocol that facilitates the peer-to-peer exchange of digital assets on the Ethereum blockchain. Launched in 2017 by Will Warren and Amir Bandeali, 0x enables decentralized exchanges (DEXs) and applications to trade ERC-20 and ERC-721 tokens efficiently without relying on centralized intermediaries. By using off-chain order relays and on-chain settlement, 0x reduces transaction costs while maintaining security and transparency.
0x's native token, ZRX, is used for governance and staking by market makers who provide liquidity to the network.