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# Installation
This guide covers installing the FreeCAD MCP Server and connecting it to your AI assistant.
---
## Requirements
- **FreeCAD** 0.21+ or 1.0+ (with Python 3.11)
- **Python 3.11** (must match FreeCAD's bundled Python version)
- An **MCP-compatible AI assistant** (Claude Code, Cursor, etc.)
---
## Installation Methods
### Method 1: pip (Recommended)
The simplest way to install the MCP server:
```bash
pip install freecad-robust-mcp
```
### Method 2: From Source (for Development)
```bash
git clone https://github.com/spkane/freecad-robust-mcp-and-more.git
cd freecad-robust-mcp-and-more
# Install mise (if not already installed)
curl https://mise.run | sh
mise trust
mise install
just setup
```
### Method 3: Docker
Run the MCP server in a container:
```bash
# Pull from Docker Hub
docker pull spkane/freecad-robust-mcp
# Or build locally
docker build -t freecad-robust-mcp .
```
**Note:** The Docker container runs the MCP server only—it does not include FreeCAD itself. You must run FreeCAD with the MCP Bridge workbench on your host machine (or in a separate container) and configure the MCP server to connect via `xmlrpc` or `socket` mode.
**Why embedded mode doesn't work with Docker:** Embedded mode requires FreeCAD and the MCP server to run in the same process, which is impossible when FreeCAD runs on the host and the MCP server runs inside a Docker container. Additionally, embedded mode fails on macOS due to ABI incompatibility with FreeCAD's bundled Python libraries (`libpython3.11.dylib`). Always use `xmlrpc` or `socket` mode for Docker deployments.
---
## Installing the MCP Bridge Workbench
The MCP Bridge Workbench runs inside FreeCAD and provides the connection point for the MCP server.
### Via FreeCAD Addon Manager (Recommended)
1. Open FreeCAD
1. Go to **Tools > Addon Manager**
1. Search for "FreeCAD MCP and More" or "MCP Bridge"
1. Click **Install**
1. Restart FreeCAD
### Manual Installation
1. Download the latest release from [GitHub Releases](https://github.com/spkane/freecad-robust-mcp-and-more/releases)
1. Extract to your FreeCAD Mod directory:
- **Linux:** `~/.local/share/FreeCAD/Mod/`
- **macOS:** `~/Library/Application Support/FreeCAD/Mod/`
- **Windows:** `%APPDATA%\FreeCAD\Mod\`
1. Restart FreeCAD
---
## Verifying Installation
After installation, verify everything is working:
### Step 1: Start FreeCAD with the MCP Bridge
1. **Start FreeCAD** and select the **MCP Bridge** workbench from the workbench selector dropdown
1. **Click "Start MCP Bridge"** in the toolbar (or use the MCP Bridge menu)
1. Check the FreeCAD console for confirmation messages:
```text
MCP Bridge started!
- XML-RPC: localhost:9875
- Socket: localhost:9876
```
### Step 2: Verify the MCP Server
Test that the MCP server command is available:
```bash
# With pip installation
freecad-mcp --help
# With source installation
uv run freecad-mcp --help
```
### Step 3: Test the Connection
With FreeCAD running and the bridge started, you can verify connectivity:
```bash
# Quick connectivity test using curl (XML-RPC)
curl -X POST http://localhost:9875 \
-H "Content-Type: text/xml" \
-d '<?xml version="1.0"?><methodCall><methodName>ping</methodName></methodCall>'
```
A successful response indicates the bridge is working correctly.
---
## Next Steps
- [Configuration](configuration.md) - Set up environment variables and MCP client settings
- [Quick Start](quickstart.md) - Create your first model with AI assistance