Changelog

New Liquidity Sources

• Arbitrum: Added MimSwap.
• Avalanche: Added Pharaoh DLMM.
• Base: Added AlienBase V2/V3, BaseX, DackieSwap V2, Equalizer, HydrexLegacy, IziSwap, KimV4, NineMMV2/V3, OmniV3, RocketSwap, SharkSwap V2, SoSwap, Synthswap V2/V3, Treble, TrebleV2/V4, and enabled UniswapV4 hooked pools.
• BSC: Added BiSwap V3, Ellipsis, MDEX, Nerve, and PancakeSwap Stable.
• Ethereum: Added Blackhole, Fraxswap V2, Rubicon, ShibaSwap, SkyLite PSM, Stepn, USDD Lite PSM, and enabled UniswapV4 hooked pools.
• Linea: Added Aqua V2, EchoDEX V3, Etherex, IziSwap, Lynex, Nile, Nile V2, PancakeSwap V3, Secta V2/V3, SpartaDex, SushiSwap V3, SyncSwap Classic/Stable, and Uniswap V3.
• Polygon: Added Meshswap and PUSD.
• Scroll: Added Aqua V2, SyncSwap Classic/Stable, and Wombat.

New Features

• Exact-out support in Swap & Gasless API: You can now specify a precise buyAmount to receive and the API returns the minimum sell amount required. Responses include maxSellAmount, estimatedNetSellAmount, and a route.refund leg that converts any buy-token surplus back to the sell token. Supports custom recipient and txOrigin parameters. See buyAmount in API reference.
• Concurrent gasless trades now supported: Gasless /submit now allows multiple in-flight trades for the same taker and sell token, as long as the taker’s balance covers all pending sells.

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.

📣 Announcements

• Cross-Chain API (Private Beta): The Cross-Chain API is now live in private beta. Learn more and sign up.

New Chains

• Tron: Now supported in Cross-Chain API.

New Liquidity Sources

• Arbitrum: Added Metric, CamelotV3, PancakeV3, UniV3.
• Avalanche: Added Metric.
• Base: Added Doppler (Uniswap V4), Feltir, Stabull, Wasabi, Liquid V2 hooks (Uniswap V4), Aquinas hook (Uniswap V4), cbBTC pool, Zora hook (Uniswap V4).
• BSC: Added Elfomo, Lista Stable, Metric, Pancake Infinity CL.
• Ethereum: Added Clober V2, DeFiSwap, DodoV2, Metric, Wasabi.
• HyperEVM: Added Hybra V4, Nabla, UltraSolid V3.
• Monad: Added BalancerV3.
• Optimism: Added DackieSwap V3, Rubicon, Velodrome V2.
• Sonic: Added Equalizer, Metro LB, Metro.

New Features

• Smart account signatures in Gasless API: Raw signatures from ERC-4337 smart wallets are now accepted in the Gasless API.
• wrapUnwrapMode in Swap API: Controls how native wrap/unwrap trades are executed — direct (default) calls the wrapped-native contract directly, settler routes through Settler or AllowanceHolder for compatibility. See more

📣 Announcements

• Cross-Chain API (Private Beta): The Cross-Chain API is now live in private beta. Learn more and sign up.

New Chains

• HyperEVM: Now supported in Swap API.
• Tempo: Now supported in Swap API.

New Liquidity Sources

• Arbitrum: Added WooFi v2.
• Avalanche: Added WooFi v2.
• Base: Added DODO v2, ElfomoFi, Metric, and WooFi v2.
• BSC: Added WooFi v2.
• Ethereum: Added Ekubo v3.
• Linea: Added WooFi v2.
• Mantle: Added WooFi v2.
• Optimism: Added WooFi v2.
• Polygon: Added ApeSwap, WooFi v2.
• Sonic: Added WooFi v2.
• HyperEVM: Added Hybra, Kittenswap.

Chores

• Expanded Uniswap v4 support:
  • Added Temple hook (Base).
  • Added Clanker hook (BSC).
  • Added Pancake Infinity.
  • Added Liquid Launch.

📣 Announcements

• Cross-Chain API (Early Access): Learn more about the Cross-Chain API and request early access via the signup form.
• xStock Support: xStock assets are now supported. To enable xStocks, email william@0xproject.com with the subject line “xStocks Opt-in”, and we’ll follow up with next steps.

New Chains

• Abstract: Now supported in Swap API.

New Liquidity Sources

• Avalanche: Added Pharaoh v3.
• Base: Added Clober, Handji, Hydrex, Omni v3.
• BSC: Added Pancake Infinity Bin.

New Features

• xStock Support: Added support for xStock assets. Opt-in details are listed in the announcements above.

Chores

• Expanded Uniswap v4 support:
  • Added Zora hook.
  • Added third-party Creator Coin hook.
  • Added Universal hook.
  • Added Stock hook.
• Bebop Action Migration: Adopted the new Bebop action, improving execution handling by determining fill data internally.

New Liquidity Sources

• Arbitrum: Added Spark PSM.
• Base: Added Hydrex (legacy).
• Monad: Added LFJ TokenMill.
• Improved Nabla integration.
• Improved Fluid integration.

Chores

• Expanded Uniswap v4 support:
  • Added additional NFT Strategy hooks.
  • Added Corner hook.
  • Added additional Flaunch hooks.

New Chains

• Monad: Now supported in Swap API and Gasless API.

New Liquidity Sources

• Avalanche: Added Blackhole.
• Base: Added Native AMM, Wildcard AMM, and the Deli Uniswap v4 hook.
• Ethereum: Added Bebop, native AMM, and NFT Strategy.
• Linea: Added Etherex.
• Monad: Added AethonSwap, Atlantis v4, Bean Exchange, Capricorn, Clober v2, Curve, DYORSwap, Flap, IziSwap, Kuru, Merchant Moe v1, Monday Trade, Nad.fun, OctoSwap v1, OctoSwap v2, PancakeSwap v2, PancakeSwap v3, Purps v2, Swaap v2, Swyrl v3, Trader Joe v2.2, Uniswap v2, Uniswap v3, and Uniswap v4.

New Features

• Multiple Integrator Fee Support: API now supports sending multiple swap fees in a single /swap or /gasless request.

Chores

• Improved routing for FEY and CLANKER ecosystems.

New Features

• Max Trade Surplus BPS: Added a new maxSurplusBps parameter for controlling max acceptable surplus on returned trades.
• Dashboard SSO Login: Added support for Single Sign-On (SSO) in the 0x Dashboard.

New Chains

• Sonic: Added Swap API support.
• Unichain, Sonic, and Plasma: Added Gasless API support.

New Liquidity Sources

• Arbitrum: Added Swaap.
• Avalanche: Added Swaap, Blackhole.
• Base: Added Rubicon, 9mm.
• BSC: Added Swaap, Thena v2, Pancake Infinity.
• Berachain: Added Nabla.
• Ethereum: Added Rubicon.
• Linea: Added Swaap.
• Mode: Added Swaap.
• Monad: Added Magma, Kuru, Crystal, Nitro.
• Optimism: Added Swaap, Rubicon.
• Plasma: Added Lithos.
• Polygon: Added Swaap.

Uniswap v4 Hooks

• Added support for the following hooks:
  • NFT Strategy
  • Deli
  • Doppler
  • vii finance
  • pubhouse
  • DCA
  • Clanker

Chores

• Improved routing for $CREATE** and **$NOICE ecosystems.
• Improved validation on Base.

New Chains

• Plasma Chain (9745): Now supported in Swap API.

New Features

• Swap + Send: Added support for swapping tokens and sending them to a specified address via a new recipient parameter in both Swap and Gasless APIs (see API Reference.

New Liquidity Sources

• Ethereum: Added Fluid Lite.
• Plasma: Added Curve, Balancer v3, Fluid, and Uniswap v3.

Chores

• Uniswap v4 hook:
  • Added Renzo hook.
  • Updated Clanker, Flaunch, and Zora hooks.
• Improved routing for Zora ecosystem.
• Improved routing for Retake ecosystem.
• Improved latency across routing infrastructure.

Private Early Release

• Solana Swap Instructions API
• Cross-Chain API

New Liquidity Sources

• Base: Added Hydrex.