Fonto Docs

io.github.DrRataplanPublished by GitHub account DrRataplanv1.8.1Updated Oct 24, 2026

Fonto (FontoXML) documentation for AI tools. Converts DITA XML to Markdown on demand.

VerifiedStreamable HTTPWeb executableKnowledge & MemoryDeveloper Tools

Overview

AI-generated overview

Remote MCP server that gives an assistant searchable, Markdown-converted access to the Fonto (FontoXML) documentation and its API reference.

What you can do
  • Search the Fonto docs by keyword and get ranked results with titles, descriptions and slugs
  • Fetch the full Markdown content of a documentation page by its slug
  • Look up an API symbol by exact name, call syntax or import path and get its page in one call
  • List pages filtered by title, product or ancestry keyword, or read the full catalog resource
  • Address any page directly through a page resource template
When to use it
Useful when working with Fonto XML / FontoXML editor development and you want the assistant to answer questions about APIs, configuration, widgets or upgrade guides from the live documentation instead of guessing.
Requirements
A remote streamable HTTP endpoint; no local install, account, API key or OAuth is needed. The client must support remote HTTP MCP servers or custom connectors. The server itself fetches content from the Fonto documentation site, so it needs network access on its side.
Before you install
Read-only lookups; no credentials are requested and nothing is written back. Queries and page requests go to a third-party hosted server, which in turn fetches pages from the Fonto documentation site, so your search terms and requested slugs are visible to that operator.

Installation

In SourceWeft

  1. Open Fonto Docs in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.github.DrRataplan%2Ffonto-docs/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

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

README

fonto-docs-mcp

[Deploy to Cloud Run] [MIT License]

An MCP server that makes the Fonto XML documentation accessible to AI tools like Claude Code, Cursor, and Claude Desktop. Live at 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:

ToolWhat it does
search_fonto_docsSearch by keyword — returns matching pages with titles, descriptions, and slugs
get_fonto_pageFetch the full content of a page by its slug
lookup_apiResolve an API name (e.g. documentsManager, createIconWidget) straight to its page in one call
list_pagesList all pages matching a keyword, with full section hierarchy — useful for discovery
ResourceWhat it contains
fonto://catalogAll ~2000 pages with real titles, product grouping, and ancestry paths
fonto://page/{slug}Resource template — address any page directly by its slug

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 / claude.ai

Add it as a custom connector: go to Customize → Connectors, click + → Add custom connector, and paste https://fonto-docs.elliat.nl/mcp. No OAuth settings are needed. Connectors added this way are available in both Claude Desktop and claude.ai. See Get started with custom connectors using remote MCP.

(claude_desktop_config.json only launches local stdio servers, so it can't be used for this server.)

Mistral AI / Vibe

The easiest way is through the Connectors page in the Mistral console:

  1. Go to the Connectors page and click + Add Connector.
  2. Open the Custom MCP Connector tab.
  3. Enter a name (e.g. fonto-docs) and the server URL https://fonto-docs.elliat.nl/mcp, then click Connect.

No authentication is needed. Vibe automatically discovers connectors registered this way, so the tools are available in every Vibe session where you're signed in with your Mistral account — no local configuration required.

Alternatively, add the server to your local Vibe configuration by editing ~/.vibe/config.toml:

toml
[[mcp_servers]]name = "fonto-docs"transport = "streamable-http"url = "https://fonto-docs.elliat.nl/mcp"

No auth block is needed — the server requires no authentication.

See the MCP Connectors documentation for more details.

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 /api/{name} — fetch the page for an API symbol by exact name, as Markdown (404 with suggestions if none)
  • 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 cached in-process for 10 minutes to absorb repeated lookups in the same session; after that, get_fonto_page fetches it live from documentation.fontoxml.com again. 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 installnpm start        # runs on port 8080 by defaultPORT=3000 npm start

Contributing

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

  • DITA guide pages — <topic>, <body>, <section> structure
  • API reference pages — custom <type>, <members>, <description> structure

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

License

MIT

Source: README.md at commit ebe2b49

Tools

4

search_fonto_docs

Search Fonto Documentation

Search the Fonto XML documentation using full-text search. Returns results ranked by relevance with titles, descriptions, and slugs. Best for looking up a concept, API name, or feature by keyword.

Parametersqueryrequired

get_fonto_page

Get Fonto Page

Fetch the full content of a Fonto documentation page by its slug (the part of the URL after /latest/). Use search_fonto_docs or list_pages first to find the right slug.

Parametersslugrequired

lookup_api

Look Up Fonto API

Look up a Fonto API symbol by exact name (function, class, manager, type, or component — e.g. 'documentsManager', 'createIconWidget', 'CvkOptions') and return its full documentation page in one call. Accepts call syntax ('registerWidget()'), import paths ('fontoxml-families/src/createIconWidget'), and member access ('documentsManager.getNodeById', resolved to the owner's page). Matching is case-sensitive first, so 'DocumentsManager' (class) and 'documentsManager' (instance) resolve to different pages; other same-named pages are listed as alternatives. If no page has that name, returns search suggestions instead — use search_fonto_docs for concepts or partial names.

Parametersnamerequired

list_pages

List Fonto Pages

Filter Fonto documentation pages by title, product, or ancestry keyword. Returns all matches without ranking — useful when you know the product area or part of the page title. For full-text relevance search use search_fonto_docs; for the complete catalog use the fonto://catalog resource.

Parameterskeywordrequired

Version history

5
  1. v1.8.1LatestOct 9, 2026
  2. v1.8.0Oct 8, 2026
  3. v1.7.0Oct 3, 2026
  4. v1.6.4Sep 25, 2026
  5. v1.6.3Sep 16, 2026

Score

100% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts