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https://github.com/drrataplan/fonto-docs-mcp

MCP server for Fonto XML documentation — search and fetch API docs directly in Cursor, Claude, and Claude Code
https://github.com/drrataplan/fonto-docs-mcp

claude cursor documentation fonto mcp model-context-protocol xml

Last synced: 27 days ago
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MCP server for Fonto XML documentation — search and fetch API docs directly in Cursor, Claude, and Claude Code

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# fonto-docs-mcp

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[![MIT License](https://img.shields.io/badge/license-MIT-blue.svg)](LICENSE)

An MCP server that makes the [Fonto XML documentation](https://documentation.fontoxml.com/) accessible to AI tools like Claude Code, Cursor, and Claude Desktop. **Live at [fonto-docs.elliat.nl](https://fonto-docs.elliat.nl/).**

The Fonto docs are rendered by a JavaScript SPA, which makes them impossible for AI to read directly. This server fetches the underlying XML and converts it to clean, readable Markdown on demand.

## What is MCP?

MCP (Model Context Protocol) is a standard way to give AI assistants access to external tools. Once you connect this server to your AI tool, it gains access to these tools and resources:

| Tool | What it does |
|---|---|
| `search_fonto_docs` | Search by keyword — returns matching pages with titles, descriptions, and slugs |
| `get_fonto_page` | Fetch the full content of a page by its slug |
| `list_pages` | List all pages matching a keyword, with full section hierarchy — useful for discovery |

| Resource | What it contains |
|---|---|
| `fonto://catalog` | All ~2000 pages with real titles, product grouping, and ancestry paths |

You can then ask things like *"How does addDocumentChangeCallback work?"* and the AI will look it up in the live Fonto docs.

## Connect to your AI tool

The server is already running at `https://fonto-docs.elliat.nl/mcp` — you just need to point your tool at it.

### Claude Code (CLI)

```bash
claude mcp add --transport http fonto-docs https://fonto-docs.elliat.nl/mcp
```

### Cursor

Add to `.cursor/mcp.json` in your project (or `~/.cursor/mcp.json` globally):

```json
{
"mcpServers": {
"fonto-docs": {
"type": "http",
"url": "https://fonto-docs.elliat.nl/mcp"
}
}
}
```

### Claude Desktop

Add to `~/Library/Application Support/Claude/claude_desktop_config.json` (macOS) or `%APPDATA%\Claude\claude_desktop_config.json` (Windows):

```json
{
"mcpServers": {
"fonto-docs": {
"type": "http",
"url": "https://fonto-docs.elliat.nl/mcp"
}
}
}
```

## Usage examples

Once connected, ask your AI assistant:

- *"Search the Fonto docs for documentsManager"*
- *"Get the Fonto docs page for clearundostackfordocument-f0187fade723"*
- *"How does addDocumentChangeCallback work according to the Fonto docs?"*
- *"List all pages in the configure section"*
- *"What upgrade guides are available?"*

## HTTP API

The server also exposes a plain HTTP API if you want to use it without MCP:

- `GET /search?q={query}` — search pages by keyword
- `GET /page/{slug}` — fetch a page as Markdown
- `GET /catalog` — full page catalog grouped by section; add `?section={keyword}` to filter

## How it works

The Fonto documentation site stores its content as XML at predictable URLs under `/static/xml/`. This server fetches those XML files directly and converts them to Markdown, bypassing the JavaScript rendering. Page content is never cached — every `get_fonto_page` call goes to `documentation.fontoxml.com` live. The page catalog (used by `list_pages` and `fonto://catalog`) is fetched once from the Fonto search index on first use and held in memory for the lifetime of the process.

## Self-hosting

```bash
npm install
npm start # runs on port 8080 by default
PORT=3000 npm start
```

## Contributing

PRs welcome. The XML-to-Markdown conversion in `src/fonto.js` handles two formats:

- **DITA guide pages** — ``, ``, `` structure
- **API reference pages** — custom ``, ``, `` structure

If you find pages that don't convert well, open an issue with the slug.

## License

MIT