GH_mcp_server
About
This is a MCP Server that allows LLM to interact with Rhino and Grasshopper directly.
Details
- Author
- veoery
- GitHub stars
- 31
- Downloads
- 99
- Categories
- Other
Jump to
- Analyze .3dm files through natural language prompts
- Perform 3D modeling directly via LLM interactions
- Automatically generate GHPython code in Grasshopper
- Integrates with Rhino 7 or 8 and Claude Desktop
Install Rhino 7 or 8, RhinoPython, uv, and Claude Desktop. Clone the repository, create a uv virtual environment, and install the package. Configure the MCP server in Claude Desktop’s claude_desktop_config.json pointing to run_server.py. Then start Rhino, run the CodeListener command, and send prompts in Claude Desktop to interact with the tools.
GH_mcp_server
GH_mcp_server provides an approach that allows designer to interact with Rhino and Grasshopper directly via LLMs, including to analyse .3dm file, do 3D modeling and generate GHPython automatically in Grasshopper based on user’s guidance.
> This project is still under construction — and we’d love your help!
>
> - Feel free to open an issue if you encounter bugs or have ideas.
> - Pull requests are always welcome.
> - If you're interested in collaborating long-term, feel free to reach out to yizhuod@andrew.cmu.edu — we’d love to have you on the team!
Requirements
- Rhino 7 or 8
- Install RhinoPython: https://github.com/jingcheng-chen/RhinoPythonForVscode/tree/master?tab=readme-ov-file
- uv
-
# For MacOS and Linux
curl -LsSf https://astral.sh/uv/install.sh | sh
- `` # For Windows
powershell -ExecutionPolicy ByPass -c "irm https://astral.sh/uv/install.ps1 | iex"
- Claude Desktop
Installation
1. Clone the repository
git clone git@github.com:veoery/GH_mcp_server.git
cd GH_mcp_server
uv
------2. Set up the environment
We recommend using
:macOS/Linux
uv venv
source .venv/bin/activate
uv pip install -e .
Windows
uv venv
.venv\Scripts\activate
uv pip install -e .
> Make sure the virtual environment is activated before running or developing the project.
3. Configuration
1. In the Claude Desktop, Navigate to Settings->Developer. You will see
.
2. Click the
`Edit Config` and open the file `claude_desktop_config.json
3. Place the following code to the json file:
python
{
"mcpServers": {
"grasshopper": {
"command": "path_to_GH_mcp_server/.venv/bin/python",
"args": [
"path_to_GH_mcp_server/run_server.py"
]
}
}
}
4. Restart the Claude Desktop. If you are able to see a hammer icon, the configuration is successful. Click the hammer icon to check all the attached MCP tools.
Usage
1. Start Rhino
2. Type command
. You should see VS Code Listener Started....
3. Open the Claude Desktop and type the prompts to interact with GH_mcp_server tools. Please also check the file
examples\zaha01.gh as a reference for interacting with Grasshopper. Here are some examples:
Read the file "D:\test01.3dm" first and analyse the objects in this file.
write GHpython to create a tower referring to zaha and write the ghpython code to "D:\zaha01.py"
``
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