0x Protocol

About 0x Protocol 0x Protocol is an open-source, permissionless settlement layer that enables decentralized peer-to-peer trading of digital assets across multiple EVM-compatible blockchains without centralized intermediaries.

Built by 0x Labs and founded in 2016 in San Francisco, 0x aggregates liquidity from 150+ decentralized exchanges and liquidity sources, giving developers a single API to embed high-efficiency token swaps into any Web3 application.

Using a hybrid off-chain order relay and on-chain settlement architecture, 0x minimizes gas costs while ensuring trustless, cryptographically verified trade finalization — a design that distinguishes it from pure AMM-based protocols.

The protocol's Swap API, Orderbook API, and NFT Swap SDK have collectively processed over 52 million transactions and $125B+ in cumulative trading volume, serving apps like Coinbase Wallet, Robinhood Wallet, MetaMask, and Matcha.

Governed by the ZRX token, 0x is a community-owned infrastructure where token holders vote on protocol upgrades, and market makers are incentivized through a transparent fee-sharing model embedded in the smart contract layer.

0x Protocol's composable, API-first architecture and multi-chain expansion — including Ethereum, Polygon, Arbitrum, Optimism, BNB Chain, Avalanche, and upcoming Solana and Monad support — make it the foundational trading infrastructure for next-generation DeFi and tokenized asset markets.

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