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Cursor MCP docs You can find your Ref API key at ref.tools/keys

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Install Steps

Installing in Cursor is as easy as 1-click. Visit ref.tools/install You can also manually install via Cursor’s settings.
  1. Open Cursor Settings
  2. Click Tools & MCP
  3. Click New MCP Server. This will open an mcp.json file.
  4. Update mcp.json
{
  "mcpServers": {
    "Ref": {
      "type": "http",
      "url": "https://api.ref.tools/mcp",
      "headers": {
        "x-ref-api-key": "your-api-key"
      }
    }
  }
}

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Verify

In Cursor Settings click Tools & MCP. You should see Ref with a green dot. It should say 2 tools, 2 prompts enabled.

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Get help

If you have any issues, please reach out to help@ref.tools. We’re happy to help you get started!