RFC lookup MCP Server: Install & Setup

Install RFC lookup in Claude Code

Claude Code

claude mcp add rfc-lookup -- uvx mcp-server-rfc

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "rfc-lookup": {
      "command": "uvx",
      "args": [
        "mcp-server-rfc"
      ]
    }
  }
}

40x fewer tokens while reading the RFC corpus and flag obsoleted specs.

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

Run: claude mcp add rfc-lookup -- uvx mcp-server-rfc

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