**0x: A Decentralized Exchange Protocol** 0x is an infrastructure protocol designed to facilitate peer-to-peer trading of ERC20 tokens and other digital assets across multiple blockchains, including Ethereum, without relying on centralized intermediaries. It operates as a decentralized exchange (DEX) protocol, enabling secure and trustless transactions. The protocol is built on open-source, auditable smart contracts, providing developers with a flexible and efficient framework for integrating decentralized trading into their applications. These contracts are publicly available for review, ensuring transparency and security. 0x is widely adopted by web3 projects, including wallets, decentralized exchanges, and portfolio trackers. Hundreds of developers leverage the protocol for their applications, which has facilitated over $200 billion in cumulative trading volume since its launch. Users can monitor activity and statistics through the protocol’s dedicated explorer. The ecosystem is governed by **ZRX**, an ERC20 token that grants holders voting rights over protocol upgrades and management of the community treasury. This decentralized governance model ensures that stakeholders have a direct say in the protocol’s evolution. For more details on 0x, visit its official resources and documentation. 0x was founded in 2016 by Will Warren and Amir Bandeali. Warren serves as the platform's CEO, while Bandeali holds the role of CTO. The platform was launched after raising $24 million in an initial coin offering (ICO) in 2017, with participation from investment firms such as Polychain Capital, Pantera Capital, and FBG Capital. Before co-founding 0x, Warren worked in research roles and briefly served as a technical advisor for Basic Attention Token (BAT). Bandeali holds a BSc in Finance from the University of Illinois and previously worked in trading positions. Today, the 0x team consists of over 30 members, including engineers, researchers, and designers, who maintain and improve the platform. The 0x protocol is a decentralized exchange solution on Ethereum that supports both fungible (ERC-20) and non-fungible (ERC-721) tokens. This allows for permissionless trading across a broad range of digital assets, enabling users to buy, sell, and exchange Ethereum-based tokens through various compatible applications. The protocol is versatile and can be integrated into multiple use cases, such as: - Digital goods and services marketplaces - Over-the-counter (OTC) trading desks - Decentralized finance (DeFi) exchange functionality - Decentralized exchanges (DEXs) Beyond dedicated trading platforms, 0x can also be embedded into applications where asset exchange is a secondary feature, including in-game purchases and portfolio management tools. Transactions on the 0x protocol involve two types of fees: 1. **Relayer Fee (ZRX):** Paid by liquidity takers to incentivize market makers (relayers). 2. **Protocol Fee (ETH):** Covers gas costs for transactions. As an open-source project, 0x does not collect revenue from these fees. Instead, its development is supported by ZRX tokens allocated for team and developer incentives, along with initial funding from its token sale. The ZRX token has a fixed maximum supply of 1 billion tokens, which will never increase. Currently, approximately 75% of this total supply is in circulation, with a small portion locked for staking rewards. The emission schedule for new ZRX tokens has not been publicly disclosed, making it unclear when the circulating supply will reach full dilution. However, historical data shows that 50% of the total supply was distributed at launch, with 75% released by late 2020. According to an early blog post by 0x CEO Will Warren, the initial token distribution was structured as follows: - 50% sold to investors during the 2017 ICO - 15% allocated to the 0x core development organization - 15% reserved for an external project development fund - 10% allocated to the founding team, subject to a four-year vesting schedule with a one-year cliff - 10% retained for early backers and advisors This allocation provides transparency on how the fixed supply was initially distributed. 0x operates on the Ethereum blockchain, leveraging its security through the network of miners and nodes. The protocol's smart contracts have undergone third-party audits to identify potential vulnerabilities, backdoors, or redundant functions. Version 3 was reviewed by firms including ConsenSys Diligence, with no major issues reported. A previous vulnerability was discovered in version 2.0, which the 0x team promptly patched. The issue was identified by an independent researcher and remained unexploited. To maintain security, 0x runs a bug bounty program to encourage responsible disclosure of potential risks. ZRX is available for trading on more than 200 exchange platforms. Some of the most widely used exchanges support trading pairs with cryptocurrencies such as Bitcoin (BTC), Tether (USDT), and Ethereum (ETH), as well as fiat currencies including U.S. dollars (USD), euros (EUR), and South Korean won (KRW). For those interested in converting fiat currency to cryptocurrency, various methods are available. Learn about **Uniswap (UNI)**, a decentralized exchange protocol that provides an alternative to traditional trading platforms. For beginners, explore how to use Uniswap to trade tokens in a decentralized manner. Discover **Ferrum Network (FRM)**, a platform designed for creating blockchain-based financial applications. 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