mcpdocs-gen 0.1.3

Static documentation generator for MCP servers — like Swagger UI, but for MCP

mcpdocs

Static documentation generator for MCP servers — like Swagger UI, but for MCP.

mcpdocs introspects running Model Context Protocol (MCP) servers via SSE and generates a beautiful, searchable static documentation site. It helps developers and users understand the tools, resources, and prompts available in an MCP server.

Features

• 🔍 Auto-Introspection: Connects to any running MCP server via SSE URL to discover its capabilities.
• 🛠️ Full Support: Documents Tools, Resources, Resource Templates, and Prompts.
• 🎨 Beautiful UI: Clean, responsive, and searchable documentation with dark mode support.
• 🚀 FastAPI Integration: Easily mount auto-generated docs on your existing FastAPI application.
• 📦 Static Output: Generates pure HTML/CSS that can be hosted anywhere (GitHub Pages, S3, etc.).
• 🤖 CI/CD Ready: CLI-first design for automated documentation workflows.

Installation

Note: The repository is named mcpdocs, but the PyPI package is published as mcpdocs-gen.

pip install mcpdocs-gen

To use the FastAPI integration:

pip install "mcpdocs-gen[fastapi]"

Usage

1. Command Line Interface (CLI)

The CLI tool is named mcpdocs. To generate documentation, you provide the SSE URL of your running server.

Basic Example:

mcpdocs generate --url "http://localhost:8000/sse"

Custom Output Directory:

mcpdocs generate --url "http://localhost:8000/sse" --output "./static-docs"

CLI Reference

Flag	Shortcut	Description
--url	-u	(Required) The SSE URL of the running MCP server.
--output	-o	Where to save the HTML (default: ./site).
--timeout	-t	Seconds to wait for server responses (default: 30.0).

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2. FastAPI Integration

You can serve the documentation site directly from your FastAPI application.

from fastapi import FastAPI
from mcpdocs.integrations.fastapi import setup_mcpdocs

app = FastAPI()

setup_mcpdocs(
    app,
    url="http://localhost:8000/sse",
    mount_path="/docs/mcp",
    output_dir=".mcpdocs-cache"
)

Python API Reference (setup_mcpdocs)

Parameter	Type	Description
app	FastAPI	Your FastAPI application instance.
url	str	The SSE URL of the running MCP server.
mount_path	str	URL path where docs will be served (default: /mcpdocs).
output_dir	str	Local path to store static files (default: .mcpdocs-static).
timeout	float	Seconds to wait for server responses (default: 30.0).
auto_regenerate	bool	If True, regenerates docs on app startup (default: True).

---

3. Inspect (JSON dump)

Dump the raw server spec as JSON — useful for CI or debugging:

mcpdocs inspect --url "http://localhost:8000/sse"

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How it works

1. Introspection: mcpdocs connects to the provided SSE URL.
2. Connection: It establishes a JSON-RPC connection over the SSE transport.
3. Discovery: It queries the server for all available tools, resources, and prompts.
4. Rendering: It generates a standalone static website using Jinja2 templates.

Security

Only run mcpdocs against trusted MCP servers. The generated documentation does not include sensitive configuration details of the server.

License

MIT