0x (ZRX) is an open protocol that helps decentralized exchange of ERC20 tokens and assets, users can perform operations in safe mode, fast mode using smart contracts Ethereum. The purpose of the protocol is to use any tokens effectively. Developers can use 0x to create their own wide-range user-oriented exchange applications.
The ZRX tokens are used by Makers and Takers to pay for transaction fees for Relayers. ZRX identifiers are also promoted for decentralized management over the 0x protocol update mechanism, which allows replacing and improving its basic intellectual contracts over time.