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

# EVM Gasless API

> 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.

## Docs

- [Introduction](https://docs.0x.org/evm/gasless-api/introduction.md): Gasless API enables developers to build gasless swaps and approvals into their App and workflows.
- [Get Started with Gasless API](https://docs.0x.org/evm/gasless-api/guides/get-started-with-gasless-api.md): Learn how to send your first Gasless API request.
- [Understanding Gasless API](https://docs.0x.org/evm/gasless-api/guides/understanding-gasless-api.md): Learn how Gasless API works, key terms, and technical flow charts for how to implement in-app.
- [Technical Appendix](https://docs.0x.org/evm/gasless-api/guides/gasless-api-technical-appendix.md): Learn how to sign the trade & approval objects, split signatures, submit, and compute the trade hash for a gasless trade.