> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.0x.org/changelog/2024/12/23/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.0x.org/_mcp/server.

#### 📣 Announcements

* **Reminder**: version 1.0 of the API will be sunset on **April 11, 2025**. Please migrate to Version 2.0 before this date to avoid service disruptions. For more information, see the [Migration Guide](https://docs.0x.org/docs/upgrading/overview).

#### New Liquidity Sources

* **Swaap v2 Integration**: Initial MVP integration of Swaap v2.
* Improved pricing for Virtuals Protocol (VIRTUAL) tokens.

#### New Chains

* **Worldchain**: Added support for the Worldchain network for Swap API.

#### Chores

* Improved routing for small trades in high gas environments

#### Bug Fixes

* Fixed a bug related to **gasless fee calculation**.

#### Documentation & Demos

* **0x Gasless Trading Bot**: This demo showcases a TypeScript-based CLI trading bot that automates ERC20 token trades using the **0x Gasless API** on the **Base network**. The bot is executes gasless trades with Stop Loss and Take Profit strategies. [View the code](https://github.com/0xProject/0x-examples/tree/main/gasless-v2-trading-bot)
* **Use Swap API in Your Smart Contract with Foundry**: A toy example of the `SimpleTokenSwap` contract for ERC20 token swaps using the **0x Swap API v2**. The example is built and tested using **Foundry**. [View the code](https://github.com/0xProject/0x-examples/tree/main/swap-v2-with-foundry)

> 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.