MCP Server

Family Tree Maker ships with a remote Model Context Protocol server so that ChatGPT, Claude, and other MCP-capable assistants can render family tree PNGs directly from your conversation.

Endpoint

https://family-tree-maker.mnapoli.fr/mcp

Transport: MCP over Streamable HTTP (single POST). No authentication — the server is public and rate-limited per IP.

Tool

The server exposes a single tool: render_family_tree.

It takes a FamilyTree JSON object (see the API docs for the full schema) and returns a URL to a PNG image of the tree, which the assistant surfaces as a clickable link in its reply.

Use it in Claude

Claude.ai (web)

1. Open Settings → Connectors.
2. Click Add custom connector and paste:

   https://family-tree-maker.mnapoli.fr/mcp

3. Give it a name like Family Tree Maker and save.

Claude Desktop

Open Settings → Connectors and add a new custom connector with the URL above, same as on the web.

Claude Code (CLI)

claude mcp add --transport http \
  family-tree-maker https://family-tree-maker.mnapoli.fr/mcp

Use it in ChatGPT

ChatGPT supports remote MCP servers on Plus / Pro / Team / Enterprise plans via custom connectors.

1. Open Settings → Connectors (you may need to enable Developer mode first).
2. Click Create (or Add) and enter the URL:

   https://family-tree-maker.mnapoli.fr/mcp

3. Set the authentication to No authentication and save.
4. In a new conversation, enable the connector from the composer's tools menu.

Example prompt

The assistant will call render_family_tree with a structured payload and include a link to the rendered PNG in its reply.