# Quickstarts

Pick your client. Each guide lists what you need, the one command or file to add, and how to check it works.
Everything runs on any plan, including Free.

- [Claude Code](https://www.closefinch.com/docs/quickstart/claude-code)
- [Codex](https://www.closefinch.com/docs/quickstart/codex)
- [Cursor](https://www.closefinch.com/docs/quickstart/cursor)
- [ChatGPT](https://www.closefinch.com/docs/quickstart/chatgpt)
- [Claude Agent SDK](https://www.closefinch.com/docs/quickstart/agent-sdk)
- [REST API](https://www.closefinch.com/docs/quickstart/rest)

What you need for all of them: an account and an API key (Settings → API keys). The MCP server is at
`https://api.closefinch.com/mcp` (Streamable HTTP); the REST API is at `https://api.closefinch.com/v1` with its spec at
[https://www.closefinch.com/openapi.json](https://www.closefinch.com/openapi.json).