FreeCAD MCP
Control FreeCAD with natural-language 3D modeling
Runs as a server Claude Code connects to. It needs its own configuration, and some servers need an API key.
Install just this one
Run in your terminal — needs Node
npx archtmpl@latest --mcp freecad-mcpFirst time? The whole install, step by step
- Open Claude Code — the terminal version or the desktop app, either one.
- In a terminal, paste the line above and press Enter. In the app, paste it into the chat and ask Claude to run it.
- Restart Claude Code. That's the whole install.
The same JSON shown on this page works in the Claude desktop app without Claude Code. Add it to the app's config file, then restart the app:
- macOS:
~/Library/Application Support/Claude/claude_desktop_config.json - Windows:
%APPDATA%\Claude\claude_desktop_config.json
What this mcp server does
shell
1{ 2 "name": "FreeCAD MCP", 3 "summary": "Control FreeCAD from Claude — natural-language 3D modeling and Python execution in open-source CAD", 4 "repo": "https://github.com/neka-nat/freecad-mcp", 5 "mcpServers": { 6 "freecad": { 7 "command": "uvx", 8 "args": ["freecad-mcp"] 9 }10 },11 "postInstallNotes": "Requires the FreeCADMCP addon installed inside FreeCAD first — clone the repo and copy its addon/FreeCADMCP folder into FreeCAD's Mod directory (Windows: %APPDATA%\\FreeCAD\\Mod\\; macOS: ~/Library/Application Support/FreeCAD/v1-1/Mod/; Linux: ~/.FreeCAD/Mod/ or the distro-specific path in the README), restart FreeCAD, select the MCP Addon workbench, and start its RPC server (or enable Auto-Start Server in the FreeCAD MCP menu). Requires uv/uvx installed."12}13