0x

0x is a powering decentralized exchange.

Built on Ethereum’s distributed network with no centralized point of failure and no down time, each trade is settled atomically and without counterparty risk

By sharing a standard API, relayers can easily aggregate liquidity pools, creating network effects around liquidity that compound as more relayers come online.

0x is open source, permissionless and free to use. Trade directly with a known counterparty for free or pay a relayer some ZRX tokens to access their liquidity pool.