RhinoMCP

RhinoMCP connects Rhino3D to Claude AI via the Model Context Protocol (MCP), enabling Claude to directly interact with and control Rhino3D for AI-assisted 3D modeling, analysis, and design workflows.

Project Overview

This integration consists of two main components:

1. Rhino Plugin: A socket server that runs inside Rhino’s Python editor, providing a communication interface to Rhino’s functionality.
2. MCP Server: An implementation of the Model Context Protocol that connects Claude AI to the Rhino plugin, enabling AI-controlled operations.

Features

• Socket-based bidirectional communication between Python and Rhino
• Model Context Protocol server for Claude AI integration
• Support for NURBS curve creation (initial test feature)
• Python script execution within Rhino’s context
• Compatible with both Claude Desktop and Windsurf as clients

Installation

Requirements

• Rhinoceros 3D (Version 7 or 8)
• Python 3.10 or higher
• Windows 10 or 11

Install Using uv (Recommended)

# Create and activate a virtual environment 
mkdir -p .venv
uv venv .venv
source .venv/Scripts/activate  # On Windows with Git Bash

# Install the package
uv pip install -e .

Install Using pip

# Create and activate a virtual environment
python -m venv .venv
.venvScriptsactivate  # On Windows

# Install the package
pip install -e .

Usage

Step 1: Start the Rhino Bridge Server

1. Open Rhino
2. Type EditPythonScript in the command line to open Rhino’s Python editor
3. Open the Rhino server script from src/rhino_plugin/rhino_server.py
4. Run the script (F5 or click the Run button)
5. Verify you see “Rhino Bridge started!” in the output panel

Step 2: Start the MCP Server

# Activate your virtual environment
source .venv/Scripts/activate  # On Windows with Git Bash

# Start the MCP server
rhinomcp

Or run with custom settings:

rhinomcp --host 127.0.0.1 --port 5000 --rhino-host 127.0.0.1 --rhino-port 8888 --debug

Step 3: Connect with Claude Desktop or Windsurf

Configure Claude Desktop or Windsurf to connect to the MCP server at:

ws://127.0.0.1:5000

Example: Creating a NURBS Curve

When connected to Claude, you can ask it to create a NURBS curve in Rhino with a prompt like:

Create a NURBS curve in Rhino using points at (0,0,0), (5,10,0), (10,0,0), and (15,10,0).

Development

Setup Development Environment

# Clone the repository
git clone https://github.com/FernandoMaytorena/RhinoMCP.git
cd RhinoMCP

# Create and activate virtual environment
uv venv .venv
source .venv/Scripts/activate  # On Windows with Git Bash

# Install development dependencies
uv pip install -e ".[dev]"

Run Tests

pytest

Code Style

This project uses Ruff for linting and formatting:

ruff check .
ruff format .

Project Structure

RhinoMCP/
├── src/
│   ├── rhino_plugin/  # Code that runs inside Rhino
│   │   └── rhino_server.py
│   └── rhino_mcp/     # MCP server implementation
│       ├── rhino_client.py
│       └── mcp_server.py
├── tests/             # Test modules
├── docs/              # Documentation
├── config/            # Configuration files
├── ai/                # AI documentation and prompts
├── setup.py           # Package installation
├── requirements.txt   # Package dependencies
└── README.md          # Project documentation

License

MIT License

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.