0x says running its Swap API on @QuickNode cut p90 latency by 70% on Solana, delivering fresher account state and less drift between quote and fill. The move marks the first time the nine-year-old routing API has left the EVM: on Solana there is no ready-to-sign transaction, so each trade is priced and constructed differently than on EVM chains.
0x is hardening its swap infrastructure around the contracts that hold users' token approvals. Its AllowanceHolder contract has been formally verified by @bailsecurity on the Certora Prover, mathematically proving the contract is correct — the same assurance used by Aave and Uniswap. Few other swap aggregators claim this level of verification.
Per the verification, approvals cannot outlive the transaction even against a hostile callee, an allowance is scoped to exactly one (operator, owner, token) and cannot be over-spent, and failed calls roll back atomically. bailsecurity has also confirmed it is currently conducting an audit for 0x, alongside the Immutable Settler contracts and audits by Trail of Bits, OpenZeppelin, Dedaub, and Ouroboros, plus 0x's SOC work, as part of a broader security posture for its swap infrastructure.
Coinbase-wrapped HYPE and ZEC (cbHYPE, cbZEC) are now available through 0x. Integrators building with the 0x Swap API get automatic access to both tokens on day one, with deep liquidity and 0x's routing, targeted at Coinbase-wrapped assets on Base.
0x announced that its SOC 2 Type 1 audit is complete, with the Type 2 audit now underway. The company frames the milestone as independent assurance for teams building on the 0x API, covering the operational controls behind its routing infrastructure.
0x has added Ondo Stocks as a routable asset, so apps built on 0x can now enable trading of tokenized equities immediately. 0x's routing infrastructure now supports Ondo Stocks, alongside matchaxyz, another aggregator now connecting them to DeFi. Ondo Stocks has reportedly accumulated $18B+ in cumulative trading volume this year, and 0x is positioning its routing infrastructure as the execution layer for that volume.
0x is routing trades across Coinbase Tokenized Stocks from day one of their launch on Base. The service is available only in eligible geos outside the U.S.
0x integrators now have instant access to swapping over 190+ Robinhood Stock Tokens with no added work. Robinhood added 100 more stock tokens on Robinhood Chain, bringing the total above 190, supported across Robinhood Chain and compatible self-custody wallets.
0x's Swap API is now available on Solana in open beta, bringing its routing infrastructure to the SVM ecosystem. Integrations include multi-hop and multi-plex routes, Token 2022 support, monetization controls, and custom transaction assembly.
0x reports 97.8% quote-to-settlement accuracy with zero swap fees to start. It cites Solana's record 4.24B transactions in July, up ~40% from January, as context for why execution quality matters at that volume.
Pons v2 tokens, now live on Robinhood Chain, are immediately tradeable through 0x Swap API. Both launched and graduated tokens are supported, giving 0x integrators and their users instant access without extra integration work.
Will Warren transitioned out of the co-CEO role, remaining as board member and shareholder. Co-founder Amir Bandeali assumed sole CEO leadership, citing the need for faster decision-making in a hyper-competitive market.
The U.S. Commodity Futures Trading Commission charged 0x alongside Opyn and Deridex. ZeroEx settled by paying a $200,000 civil penalty and agreeing to cease the violations.
The round included Pantera, OpenSea, Coinbase, Sound Ventures, and Jared Leto. Funding targeted team expansion and scaling Matcha, 0x Swap API, and the 0x Protocol across seven blockchains.
An on-chain binding governance system was deployed, giving ZRX holders direct control over a treasury seed-funded by 0x Labs. The DAO marked the first major step toward full protocol decentralization.
The equity round included Jump Capital, Blockchain Ventures, and Coinbase Ventures. Funds were earmarked for expanding Matcha globally, the 0x API, and the Periscope Trading desk.
Approved by a vote of 2,362 ZRX holders with 11.6M ZRX, v4 delivered up to 70% gas savings for RFQ liquidity, plug-and-play on-chain liquidity, and automatic upgradability via governance.
0x Labs released Matcha, a consumer-facing DEX aggregator using the 0x API to smart-route orders across multiple on-chain liquidity sources including Uniswap, Curve, and Kyber.
V3 introduced ZRX staking for market makers, protocol fees, and ERC20BridgeProxy contracts enabling aggregated liquidity from Kyber, Uniswap, and Oasis. Approved via on-chain governance vote.
Security researcher samczsun disclosed a flaw that could allow attackers to fill orders with invalid signatures. The v2.0 Exchange contract was immediately shut down; no user funds were lost and a patched contract was deployed.
After over a year of development and multiple security audits, v2 introduced ERC-721 (NFT) support, a modular architecture, and a new order format enabling broader asset exchange use cases.
The token sale ran August 15–16, 2017, raising $24 million in ether from 12,000 backers at $0.048 per ZRX. The protocol's first smart contracts were deployed to Ethereum mainnet simultaneously.
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