0x (also known by its ticker symbol ZRX) is a decentralized exchange protocol created to facilitate peer-to-peer trading of ERC-20 tokens on the Ethereum blockchain. The project was founded in 2017 by Will Warren and Amir Bandeali, two blockchain enthusiasts aiming to streamline the trading of tokens without relying on centralized exchanges. The concept behind 0x is to provide a mixture of both speed and transparency by enabling decentralized trades through smart contracts.
Shortly after its development, the team behind 0x launched an initial coin offering (ICO) for ZRX tokens, raising a substantial $24 million. This ICO came at a time when numerous blockchain-based projects were entering the market, yet 0x managed to stand out due to its clear use case: creating a permissionless trading layer for Ethereum-based assets. The key innovation behind the protocol was its ability to allow token trades to occur off-chain for order-book management, yet finalized and settled on-chain through smart contracts. This hybrid approach allowed for reduced transaction costs and improved efficiency.
The ZRX token was integral to the functioning of the 0x protocol. It was designed not only as a governance token for protocol upgrades but also as a means to incentivize stakeholders, with rewards paid out to liquidity providers who helped facilitate smooth, decentralized trades. Furthermore, ZRX also played a role in giving voting power to holders on various protocol changes and developments.
Initially, 0x sought to build a flexible architecture that could evolve over time. The protocol featured a modular structure to accommodate future advancements. For instance, different types of decentralized exchanges and other smart contract applications could be developed on top of 0x’s infrastructure. Over the following years, the team behind ZRX introduced multiple protocol upgrades to improve performance, including improved liquidity aggregation and better market-making facilities.
Another important phase in 0x’s history was its venture into non-fungible tokens (NFTs). As the NFT market experienced considerable growth, the protocol adapted itself to include a range of NFT-related transactions, further broadening its scope beyond the simple trading of ERC-20 tokens.
While the decentralized finance (DeFi) landscape has seen an influx of competitors, the 0x protocol has maintained its focus on being a neutral and useful infrastructure provider. Additionally, the project has encouraged third-party developers to build custom applications using 0x’s API and protocol, accelerating adoption across the ecosystem.
