freecad-mcp

[](https://mseep.ai/app/neka-nat-freecad-mcp) # 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. ```bash 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](https://docs.astral.sh/uv/guides/tools/) is required. And you need to edit Claude Desktop config file, `claude_desktop_config.json`. For user. ```json { "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. ```json { "mcpServers": { "freecad": { "command": "uvx", "args": [ "freecad-mcp", "--only-text-feedback" ] } } } ``` For developer. First, you need clone this repository. ```bash git clone https://github.com/neka-nat/freecad-mcp.git ``` ```json { "mcpServers": { "freecad": { "command": "uv", "args": [ "--directory", "/path/to/freecad-mcp/", "run", "freecad-mcp" ] } } } ``` ## Remote Connections By default the RPC server does not accept remote connections and listens on `localhost`. To control FreeCAD from another machine on your network: ### 1. Enable remote connections in FreeCAD In the **FreeCAD MCP** toolbar: 1. Check **Remote Connections** — the RPC server will bind to `0.0.0.0` (all interfaces) on the next restart. For security reasons, it only accepts connections from the IP addresses or CIDR subnets specified in the **Allowed IPs** field. By default this is `127.0.0.1`. 2. Click **Configure Allowed IPs** and enter a comma-separated list of IP addresses or CIDR subnets that are allowed to connect, e.g.: ``` 192.168.1.100, 10.0.0.0/24 ``` `127.0.0.1` is always the default. Invalid entries are rejected with an error dialog. Restart the RPC server after changing these settings. ### 2. Point the MCP server at the remote host Pass the `--host` flag with the IP address or hostname of the machine running FreeCAD: ```json { "mcpServers": { "freecad": { "command": "uvx", "args": [ "freecad-mcp", "--host", "192.168.1.100" ] } } } ``` The `--host` value is validated on startup — it must be a valid IPv4/IPv6 address or hostname. ## 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](https://github.com/FreeCAD/FreeCAD-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](https://github.com/FreeCAD/FreeCAD-library). ## Contributors <a href="https://github.com/neka-nat/freecad-mcp/graphs/contributors"> <img src="https://contrib.rocks/image?repo=neka-nat/freecad-mcp" /> </a> Made with [contrib.rocks](https://contrib.rocks).