Allows control of FreeCAD from Claude Desktop, providing tools for creating and editing 3D CAD models, managing documents and objects, executing Python code, inserting parts from the parts library, and capturing screenshots of designs.
FreeCAD MCP
This repository is a FreeCAD MCP that allows you to control FreeCAD from Claude Desktop.
Demo
Design a flange

Design a toy car

Design a part from 2D drawing
Input 2D drawing

Demo

This is the conversation history. https://claude.ai/share/7b48fd60-68ba-46fb-bb21-2fbb17399b48
Related MCP server: AutoCAD MCP Server
Install addon
FreeCAD Addon directory is
Windows:
%APPDATA%\FreeCAD\Mod\Mac:
~/Library/Application\ Support/FreeCAD/Mod/Linux:
Ubuntu:
~/.FreeCAD/Mod/or~/snap/freecad/common/Mod/(if you install FreeCAD from snap)Debian:
~/.local/share/FreeCAD/Mod
Please put addon/FreeCADMCP directory to the addon directory.
When you install addon, you need to restart FreeCAD. You can select "MCP Addon" from Workbench list and use it.

And you can start RPC server by "Start RPC Server" command in "FreeCAD MCP" toolbar.

Setting up Claude Desktop
Pre-installation of the uvx is required.
And you need to edit Claude Desktop config file, claude_desktop_config.json.
For user.
If you want to save token, you can set only_text_feedback to true and use only text feedback.
For developer. First, you need clone this repository.
Tools
create_document: Create a new document in FreeCAD.create_object: Create a new object in FreeCAD.edit_object: Edit an object in FreeCAD.delete_object: Delete an object in FreeCAD.execute_code: Execute arbitrary Python code in FreeCAD.insert_part_from_library: Insert a part from the parts library.get_view: Get a screenshot of the active view.get_objects: Get all objects in a document.get_object: Get an object in a document.get_parts_list: Get the list of parts in the parts library.
Contributors
Made with contrib.rocks.