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Rfcxml MCP Server

@shuji-bonji

Repository

Basic information

Category

Other

Last updated

Transports

stdio

Author

shuji-bonji

Submitted by

shuji narumi

About Rfcxml MCP Server

An MCP server that parses RFC documents in XML format,

#rfc#rfcxml

Rfcxml MCP Server config

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

{
  "mcpServers": {
    "rfcxml": {
      "command": "npx",
      "args": [
        "-y",
        "@shuji-bonji/rfcxml-mcp"
      ]
    }
  }
}

Rfcxml MCP Server tools

7

Get RFC section hierarchy and metadata. Metadata is enriched from the IETF Datatracker API (category, stream, publication date, abstract). Pass includeAuthors=true to also resolve author names (incurs extra API calls).

Extract normative requirements (MUST/SHOULD/MAY) from RFC in structured format.

Get term definitions from RFC.

Get RFC reference relationships (normative/informative).

Get sections related to the specified section.

Generate RFC implementation checklist in Markdown format.

Validate if a statement complies with RFC requirements.

Overview

What is Rfcxml Mcp?

Rfcxml Mcp is a Model Context Protocol (MCP) server for structured understanding of RFC documents. It leverages the semantic structure of RFCXML to extract normative requirements (MUST/SHOULD/MAY), build dependency graphs, manage definition scopes, and generate implementation checklists. It is designed for AI assistants and human developers who need precise analysis of RFC specifications.

How to use Rfcxml Mcp?

Add the server to your MCP configuration file (Claude Desktop or Claude Code) using the command npx -y @shuji-bonji/rfcxml-mcp. Optionally install globally via npm install -g @shuji-bonji/rfcxml-mcp and use rfcxml-mcp as the command. Tools are invoked through the MCP client.

Key features of Rfcxml Mcp

  • RFC text retrieval and section extraction with structural awareness
  • Normative requirements extraction (MUST/SHOULD/MAY) with structured output
  • RFC dependency graph construction (normative/informative)
  • Definition scope management and related sections
  • Implementation checklist generation
  • Automatic fallback to text format for legacy RFCs

Use cases of Rfcxml Mcp

  • Extracting all MUST requirements from an RFC for compliance checking
  • Building a dependency graph of referenced RFCs for impact analysis
  • Generating an implementation checklist from a protocol specification
  • Verifying if a statement complies with the normative requirements of an RFC
  • Managing term definitions and their scope within a single RFC

Frequently asked questions

1

How is Rfcxml Mcp different from existing text-based RFC MCP servers?

Unlike text-based servers, it uses RFCXML structural data to extract requirements, conditions, exceptions, dependencies, and checklists that are not available from plain text.

2

How does Rfcxml Mcp handle RFCs published before RFC 8650?

It has automatic fallback – when official RFCXML is not available, it parses the text format instead, with a note indicating reduced accuracy.

3

What source information is included in the response?

Every response includes a `_source` field (`"xml"` or `"text"`) and a `_sourceNote` when text fallback is used, so you know the reliability of the data.

4

What tools does Rfcxml Mcp provide?

Tools include `get_rfc_structure`, `get_requirements`, `get_definitions`, `get_rfc_dependencies`, `get_related_sections`, `validate_statement`, and `generate_checklist`.

5

How do I configure Rfcxml Mcp with Claude Desktop or Claude Code?

Add the server entry to your MCP config file (e.g., `~/Library/Application Support/Claude/claude_desktop_config.json` on macOS) with command `npx -y @shuji-bonji/rfcxml-mcp`.

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