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

# Introduction

> 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

- [0x Docs](https://docs.0x.org/docs/introduction/welcome.md)
- [Create a 0x API Key](https://docs.0x.org/docs/introduction/quickstart/getting-started.md): Set up an account on the [0x Dashboard](https://dashboard.0x.org/apps), get an API key, manage your apps, tap into more developer resources.
- [Get Started with Swap API](https://docs.0x.org/docs/introduction/quickstart/swap-tokens-with-0x-swap-api.md): Learn how to send your first Swap API (AllowanceHolder) request.
- [Using AI with 0x](https://docs.0x.org/docs/introduction/develop-with-ai/using-ai-with-0x.md): Use built-in AI integrations and copy options in 0x Docs to work efficiently with LLMs
- [0x Agent Skills](https://docs.0x.org/docs/introduction/develop-with-ai/agent-skills.md): Give your AI coding agent full knowledge of the 0x APIs with a single command.
- [0x CLI](https://docs.0x.org/docs/introduction/develop-with-ai/0x-cli.md): Trade tokens across EVM chains and Solana from your terminal — built for both human traders and AI agents.
- [MCP Server Setup](https://docs.0x.org/docs/introduction/develop-with-ai/mcp-setup.md): Connect AI tools to 0x documentation for an enhanced development experience.
- [Autonomous Agent Payments](https://docs.0x.org/docs/introduction/develop-with-ai/autonomous-agent-payments.md): Access 0x swap APIs from AI agents using per-request USDC payments — no API keys required. Supports x402 (Base, Solana) and MPP via Tempo.
- [AI Project Showcase](https://docs.0x.org/docs/introduction/develop-with-ai/ai-tools.md): Explore AI tools, SDKs, and consumer applications built using 0x.
- [Supported Chains and Providers](https://docs.0x.org/docs/introduction/supported-chains.md): This page provides a list of chains and bridge providers supported by 0x APIs.
- [FAQ](https://docs.0x.org/docs/introduction/faq.md): Common issues and troubleshooting tips for 0x APIs
- [Issues & Error Codes](https://docs.0x.org/docs/introduction/api-issues.md): Learn about 0x API issues and error codes and how to resolve them.
- [Support](https://docs.0x.org/docs/introduction/need-help.md): Need help with 0x? Explore documentation, AI tools, and direct support options.