0x Protocol: What it Means, How it Works, Goals

0x Protocol
0x Protocol

0x Protocol: What it Means, How it Works, Goals: “0x” refers to the 0x Protocol, which is a decentralized exchange protocol that facilitates peer-to-peer exchange of digital assets on the Ethereum blockchain. The protocol is designed to serve as an open standard and common building block, driving interoperability among decentralized applications (dApps) that incorporate exchange functionality.

0x Protocol


  • 0x is pronounced “zero-ex.”
  • It refers to an open protocol that is designed to offer a decentralized exchange as part of the Ethereum blockchain.
  • 0x is made using a protocol that involves Ethereum smart contracts that allow those around the world to run a decentralized exchange.

How it Works

  1. Smart Contracts: The core of the 0x Protocol is a system of smart contracts that can operate on the Ethereum blockchain. These contracts govern the process of order creation, cancellation, and settlement.
  2. Relayers: Rather than maintaining an order book, 0x relies on networked liquidity providers known as “relayers”. Relayers host off-chain order books and can charge fees for their services. Traders can browse through various relayers’ order books and select trades that best suit their needs.
  3. ZRX Token: The protocol has its own token, ZRX, which is used to pay trading fees to Relayers. Furthermore, ZRX is used for decentralized governance over the protocol’s upgrade system. Those who hold ZRX have input in the protocol and improvements to make that will enhance it.
  4. Order Sharing: Users can control their own funds and execute trades directly from their wallet through partially off-chain and partially on-chain processes. This hybrid approach aims to offer faster and more cost-efficient trades.
  5. Wrappers: The 0x protocol also uses “wrappers” which allow you to trade ERC-20 and ERC-721 tokens directly, converting these assets into a format that can be traded on the platform.


  1. Decentralized Trading: One of the primary goals of 0x is to provide a platform and protocol that allow for decentralized trading of digital assets, removing the need for a central authority or intermediary.
  2. Interoperability: 0x seeks to create a standard protocol on the Ethereum blockchain that can be utilized by a multitude of dApps, allowing them to share liquidity amongst each other, thereby improving the user experience for the wider decentralized finance (DeFi) ecosystem.
  3. Reducing Friction in Trading: By providing a reliable and fast decentralized exchange, 0x aims to remove friction in trading processes, ensuring that users can easily exchange assets without relying on centralized exchanges.
  4. Global Liquidity: It aims to aggregate liquidity across various networks, creating a more efficient and inclusive financial landscape. This allows users from various networks to tap into a shared liquidity pool, enhancing the usability and functionality of decentralized exchanges.
  5. Governance: With its native token ZRX, 0x also aims to create a decentralized governance structure that allows its users to have a say in the future development and upgrades of the protocol.
  6. Security: By using blockchain technology and smart contracts, 0x aims to provide a secure trading platform where users have control over their assets and trades are executed in a trustless manner.
  7. Innovation: 0x also encourages developers to build on top of its protocol, further enhancing and innovating within the decentralized finance (DeFi) space.


  • Decentralized Exchanges (DEXs): Using the 0x API and smart contract suite, developers can build their own decentralized exchanges.
  • Tokenized Assets Trading: 0x enables the trading of tokenized assets like real estate, digital items, or equity, by providing the necessary infrastructure.
  • Prediction Markets: Platforms like Augur utilize 0x for decentralized prediction markets, where users can trade on the outcomes of future events.
  • Stablecoins and Fiat Trading Pairs: Decentralized exchanges built on 0x can offer trading pairs with various stablecoins and tokenized fiat currencies.
  • Decentralized Finance (DeFi) Platforms: Many DeFi platforms leverage 0x for decentralized trading functionalities and to access liquidity.

0x Protocol has been widely utilized in the decentralized finance (DeFi) space and continues to see integration across numerous applications, contributing significantly to the development and functionality of decentralized exchanges and platforms.

0x Protocol FAQs


1. What is the 0x Protocol?

0x Protocol is an open protocol for decentralized exchange on the Ethereum blockchain. It is designed to be adaptable and suitable for various dApps that can utilize it for exchanging digital assets.

2. What is ZRX?

ZRX is the native utility token of the 0x Protocol. It is used to pay trading fees to Relayers for their services and is also used for governance, providing holders with the ability to vote on decisions that impact the protocol.

3. What are Relayers?

Relayers are entities that host off-chain order books and facilitate trades through the 0x Protocol. They earn ZRX tokens as fees in return for their services, and traders utilize them to browse and execute trades.

4. How does 0x Protocol ensure secure trading?

0x Protocol utilizes Ethereum smart contracts, which allow users to maintain control over their funds until the point of trade execution. This ensures that trading can be done securely and without the need for a centralized intermediary.

5. What assets can be traded on 0x?

0x allows the trading of any asset that is tokenized as an ERC-20 or ERC-721 token on the Ethereum blockchain. This includes cryptocurrencies, stablecoins, and other tokenized assets such as digital items or real estate.

6. How do I use 0x to trade assets?

Users can trade assets on 0x through various platforms and interfaces that utilize the protocol, including decentralized exchanges and wallets that have integrated 0x for trading functionalities.

7. Can I create my own decentralized exchange with 0x?

Yes, developers can utilize the 0x API and smart contract suite to create their own decentralized exchange platforms, allowing them to tap into the liquidity provided by the 0x network and offering trading services to their users.

8. How does 0x facilitate decentralized finance (DeFi)?

0x enables the decentralized exchange of assets, which is a core component of DeFi. Various DeFi platforms integrate 0x to provide decentralized trading functionalities to their users and to access the liquidity available on the 0x network.

9. What is the role of 0x in the broader Ethereum ecosystem?

0x provides a decentralized exchange infrastructure that various Ethereum dApps can utilize. By offering a standard set of smart contracts and APIs, 0x allows dApps to access shared liquidity and enables asset exchanges with minimal friction.

10. How does 0x achieve fast and low-cost trades?

0x employs off-chain order relaying and on-chain settlement to facilitate trades. By moving order books off-chain and only utilizing the blockchain for settlement, 0x is able to reduce gas costs and enhance trading speed.

11. How is 0x governed?

0x is governed by its community through a decentralized governance model. ZRX holders can propose and vote on upgrades to the protocol, ensuring that it evolves in a way that aligns with the interests of its user base.

12. Can 0x be utilized on blockchains other than Ethereum?

Initially developed on Ethereum, there are initiatives and discussions within the 0x community about expanding and adapting the protocol for compatibility with other blockchains. However, as of the last training data in January 2022, 0x is primarily utilized on the Ethereum blockchain.


Always be sure to consult the most recent and official sources or communities for the 0x protocol for the most up-to-date information, as the world of decentralized finance and blockchain is fast-moving and subject to constant updates and changes.

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