@ref-tools/ref-tools-mcp

{
  "mcpServers": {
    "Ref": [
      {
        "type": "http",
        "url": "https://api.ref.tools/mcp?apiKey=YOUR_API_KEY"
      },
      {
        "command": "npx",
        "args": [
          "ref-tools-mcp@latest"
        ],
        "env": {
          "REF_API_KEY": "<sign up to get an api key>"
        }
      }
    ]
  }
}