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MCP Server IETF

@tizee

Repository

Basic information

Category

Other

License

MIT license

Transports

stdio

Author

tizee

About MCP Server IETF

A Model Context Protocol server for fetching IETF documents (RFCs) for Large Language Models.

MCP Server IETF config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "mcp-server-ietf": {
      "command": "npx",
      "args": [
        "@modelcontextprotocol/inspector",
        "uv",
        "run",
        "mcp-server-ietf"
      ]
    }
  }
}

MCP Server IETF tools

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Overview

What is MCP-Server-IETF?

A Model Context Protocol server that provides access to IETF RFC documents for Large Language Models. It downloads and caches the RFC index and documents, enabling LLMs to retrieve specifications through a standardized interface.

How to use MCP-Server-IETF?

Install from source with pip install -e . and start the server using the command mcp-server-ietf. Alternatively, use it with the MCP inspector via npx @modelcontextprotocol/inspector uv run mcp-server-ietf. Tools include list_docs_number (get total RFC count), get_doc (fetch an RFC by number with line-based pagination), and search_rfc_by_keyword (search by keyword in titles).

Key features of MCP-Server-IETF

  • Downloads and caches the RFC index and documents.
  • Search RFCs by keyword in titles.
  • Access RFC documents with line-based pagination.
  • Extracts metadata like page numbers from documents.

Use cases of MCP-Server-IETF

—

Frequently asked questions

1

What are the runtime requirements?

Python 3.11 or higher is required, along with dependencies listed in `pyproject.toml`.

2

Where are cached documents stored?

The default cache directory is `~/.cache/ietf-doc-server`.

3

What environment variables are available?

`LOG_LEVEL` can be set to control logging verbosity (default: `"DEBUG"`).

4

How do I interact with the server?

After starting the server, three tools are exposed: `list_docs_number`, `get_doc`, and `search_rfc_by_keyword`. Example: `get_doc` accepts parameters `number`, `start_line`, and `max_lines`.

5

What license does it use?

MIT License, as stated in the `LICENSE` file.

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