What is Freecad Mcp

freecad-mcp is a Model Context Protocol (MCP) server for FreeCAD that allows users to control FreeCAD from Claude Desktop, enabling seamless integration and automation of design tasks.

Use cases

Use cases for freecad-mcp include designing mechanical components like flanges and toy cars, as well as creating parts from 2D drawings, making it suitable for both professional and educational projects.

How to use

To use freecad-mcp, install the addon in the FreeCAD Mod directory, restart FreeCAD, and select ‘MCP Addon’ from the Workbench list. Start the RPC server using the ‘Start RPC Server’ command in the FreeCAD MCP toolbar.

Key features

Key features of freecad-mcp include the ability to create and edit documents and objects, execute Python code, delete objects, and insert parts from a library, all through a remote procedure call interface.

Where to use

freecad-mcp can be used in various fields such as mechanical engineering, product design, and educational environments where CAD software is utilized for modeling and simulation.

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

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.

git clone https://github.com/neka-nat/freecad-mcp.git
cd freecad-mcp
cp -r addon/FreeCADMCP ~/.FreeCAD/Mod/

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.

{
  "mcpServers": {
    "freecad": {
      "command": "uvx",
      "args": [
        "freecad-mcp"
      ]
    }
  }
}

If you want to save token, you can set only_text_feedback to true and use only text feedback.

{
  "mcpServers": {
    "freecad": {
      "command": "uvx",
      "args": [
        "freecad-mcp",
        "--only-text-feedback"
      ]
    }
  }
}

For developer.
First, you need clone this repository.

git clone https://github.com/neka-nat/freecad-mcp.git

{
  "mcpServers": {
    "freecad": {
      "command": "uv",
      "args": [
        "--directory",
        "/path/to/freecad-mcp/",
        "run",
        "freecad-mcp"
      ]
    }
  }
}

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.