> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.0x.org/changelog/2025/10/31/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.0x.org/_mcp/server.

#### 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**.

> Developer documentation for the 0x API. Embed swaps in your onchain app. Access 10+ million tokens with liquidity from 150+ exchanges with a single API.