Changelog

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

April 30, 2026

New Liquidity Sources

  • Arbitrum: Added Fluid, Printr, and Renegade.
  • Avalanche: Added Printr.
  • Base: Added Aerodrome V3, Fluid, LunarBase, Nabla, Printr, a Clanker V2 fork (Uniswap V4), Doppler Rehype (Uniswap V4), and Uniswap Stable Hook (Uniswap V4).
  • BSC: Added Fluid, SmoothyV1, and Printr.
  • Ethereum: Added Fluid, Printr, and Renegade darkpool.
  • Mantle: Added Printr.
  • Optimism: Added Velodrome V3 and Uniswap V2.
  • Polygon: Added Fluid.
  • Tempo: Added Uniswap V2, V3, and V4 support.

New Feature

  • 0x Agent Skill: New agent skill that gives AI coding agents full knowledge of the 0x APIs with a single command. Once installed, agents knows every endpoint, authentication method, and integration pattern for token swaps. Learn more
  • slippagePpm in Swap and Gasless API: Sub-BPS slippage precision is now supported via a new slippagePpm parameter (0–1,000,000). This is mutually exclusive with slippageBps — existing defaults and validations are unchanged. See more in API Reference.

Bug Fixes

  • Improve gas accuracy for Abstract.
  • Improve accuracy with Aave V3.