> ## Documentation Index
> Fetch the complete documentation index at: https://magica.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Reference

> Authentication and client compatibility for the Magica MCP server.

Quick reference for auth and supported clients.

***

## Authentication

<Warning>
  Requests without a valid API key receive a `401 Unauthorized` error.
</Warning>

The MCP server uses the same **Bearer token** as the REST API. Include it in the `headers` of your MCP client configuration — no separate authentication is needed.

See [API Reference → Authentication](/authentication) for how to create and manage keys.

***

## Compatibility

Works with any MCP client that supports the **Streamable HTTP** transport or HTTP-based MCP configs.

<CardGroup cols={3}>
  <Card title="Claude Desktop" icon="message" />

  <Card title="Claude Code" icon="terminal" />

  <Card title="Codex" icon="code" />

  <Card title="Cursor" icon="i-cursor" />

  <Card title="Windsurf" icon="wind" />

  <Card title="Other MCP clients" icon="puzzle-piece" />
</CardGroup>