Stay updated on 0x API changes and new features — subscribe to the changelog.

New Features

  • Trade Analytics API is now available in limited access. Contact us for early access inquiries.
  • Multi-user Access for the 0x Dashboard is now live, allowing multiple users to manage account analytics and insights.
  • Detailed API Error Codes are now displayed in the 0x Dashboard Analytics to streamline error troubleshooting.
  • Sell Entire Balance option is now supported in Swap API v2. To enable, set sellEntireBalance to true. Supported for both allowance-holder and permit2 endpoints. Learn more about implenting this feature.

New Liquidity Sources

  • Arbitrum: Added Angle.
  • Base: Added Angle and Clober V2.
  • BSC: Added Maverick V2.
  • Ethereum: Added Angle, DeFi Swap, Sky Migration (SKY, USDS), and Stepn.
  • Linea: Added SyncSwap V2.
  • Mantle: Added Cleopatra V1, Dodo V2, and Stratum Exchange.
  • Mode: Added Balancer V2, iZiSwap, Kim V2, Kim V4, Morphex, SwapMode V2, SwapMode V3, Supswap V2, and Supswap V3.
  • Scroll: Added Uni V3 and Wombat.

Note:

Want to add your liquidity source? Please fill out this request form.

New Chains

  • Mantle (Beta) is now live.
  • Gasless API support added for BSC, Avalanche, Mantle, and Mode chains.

Note:

Interested to build on Mantle or with Gasless API? Reach out via our contact form!

Chores

  • Latency Optimization: Shipped a technical rewrite reducing /price endpoint response times—p95 latency dropped from ~1s to ~500ms, and p50 latency decreased from ~550ms to ~340ms—with no impact on pricing performance.

Bug Fixes

  • MNT and POL Compliance: Improved support for MNT and POL tokens, which do not fully adhere to the ERC20 standard.
  • Slippage Handling: Slippage now correctly caps at the maximum specified basis points (bps).
  • Meta-transaction Settler: Fixed an RFQ handling issue in the meta-transaction flow.

Documentation

  • New guide on best practices for swapping native tokens (e.g., ETH).