ZeroEx, Intl.
Headquarters
San Francisco United States
About us
To create a tokenized world where all value can flow freely.
Founded in 2016, 0x builds the API infrastructure that powers token trading across Web3. Their suite of developer APIs aggregates liquidity from 370+ sources across 25+ blockchains, enabling seamless swaps for 45+ million tokens. Major platforms like Coinbase Wallet, Robinhood Wallet, MetaMask, and Phantom use 0x's infrastructure to deliver trading experiences to their users. Since 2017, the protocol has processed over 211 million transactions worth $180+ billion in volume. The team operates fully remote with a mission to "Create a Tokenized World Where All Forms of Value Can Flow Freely." As early Ethereum pioneers, they contributed to key standards including ERC-721 for NFTs.
Products
0x's core offering is the Swap API, a professional-grade DEX aggregator that routes trades across 150+ liquidity sources with multihop routing and low revert rates. The Gasless API abstracts transaction fees to simplify user onboarding in self-custody wallets. Their Cross-Chain API facilitates token swaps across 25+ blockchains by aggregating liquidity from 12+ bridge providers. The Trade Analytics API provides historical trading data and insights. All products are designed as modular, battle-tested infrastructure with 99.92% uptime.
Funding
0x has raised approximately $109 million across multiple funding rounds. The company completed a $24 million ICO in 2017, followed by a $15 million Series A in February 2021 led by Pantera Capital. Their $70 million Series B in April 2022 was led by Greylock Partners, with participation from Jump Crypto, Pantera Capital, Coinbase Ventures, Polychain Capital, and Blockchain Capital. The funding supports their position as critical infrastructure in the DeFi ecosystem.
Recent news
On June 4, 2026, 0x announced the general availability of its Cross-Chain API after a successful three-month private beta that processed over $230 million in bridged volume. This new developer solution enables applications to execute cross-chain swaps and transfers across more than 25 blockchains through a single integration, aggregating liquidity from 12+ bridge partners, including Circle, LayerZero, Stargate, and Across.
Technology
The platform is built on Solidity smart contracts for secure on-chain operations, with TypeScript and Go powering backend services. Frontend development uses AngularJS with Webpack for module bundling, while jQuery and GSAP handle interactivity. Infrastructure runs on AWS with Cloudflare for security and performance optimization. The APIs integrate with major Web3 wallets and exchanges, supporting EVM-compatible chains and cross-chain bridging protocols.
Benefits
0x operates as a fully remote company with flexible work arrangements and home office stipends for equipment. Health benefits include 100% covered medical, dental, vision, life, and disability insurance for US employees and dependents, plus health allowances for international staff. The package includes a 401k, monthly wellness and phone allowances, lunch reimbursement globally, unlimited therapy sessions through BetterHelp, and 12-week paid parental leave. Employees get unlimited PTO, annual team retreats, conference sponsorships, and access to a San Francisco Financial District office.