Changelog

📣 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.

Chores

• Added support for Zora ecosystem swaps (post-coin pairing with creator coin, ETH, or USDC).
• Added support for Clanker on Arbitrum and Unichain.
• Added support for FLOCKA ecosystem.
• Added support for FXH ecosystem.
• Improved WooFi integration reliability.
• Improved routing reliability.
• Improved Algebra Integral integration.

New Liquidity Sources

• Worldchain: Added WorldSwap v2.
• Avalanche: Added Balancer v3.

New Liquidity Sources

• Arbitrum: Added DeltaSwap, SpartaDEX, and Arbswap.
• Base: Added Fluid.
• BSC: Added BabySwap, FraxSwap, and Dinosaur Eggs.

Chores

• Expanded Uniswap v4 support:
  • Added Spot hook.
  • Updated Bunni, Clanker, and Flaunch hooks.
  • Enabled support for Zora Creator and Zora Content Coin
• Deprecated support for Orderbook v1
• Improved routing latency across infrastructure

Bug Fixes

• Fixed bug that caused 0 bps fills

New Liquidity Sources

• Arbitrum: Added Swaap.
• Base: Added Clanker (Uniswap v4 hook).
• BSC: Added Swaap.

Chores

• Improved ZORA token support.
• Improved terminal.co token support.
• Updated settlement contract.

Bug Fixes

• Router now returns an explicit error instead of a malformed route.
• Fixed handling of the sellEntireBalance flag.

New Chains

• Ink (57073): Now supported in Swap API.

New Liquidity Sources

• Ink: Added DYOR, InkySwap, SquidSwap, Reservoir v3, Velodrome v2, and Velodrome v3.
• Berachain: Added Honeyswap.
• BSC: Added BakerySwap.
• Polygon: Added Fluid.
• Mode: Added DackieSwap v3.

Chores

• Gasless Token Registry: Updated registry for tokens eligible for gasless approvals.
• RFQ Enhancements: Improved RFQ handling on Arbitrum and Polygon, including support for smart contract takers.
• Ekubo Upgrade: Upgraded Ekubo to use the latest Solver actions and enabled VIP settlement.
• WOOFi Update: Updated WOOFi v2 Base Vault address.