Grasshopper MCP

Analyse .3dm files, model in Rhino, and generate GHPython in Grasshopper

Runs as a server Claude Code connects to. It needs its own configuration, and some servers need an API key.

Install just this one

Run in your terminal — needs Node

npx archtmpl@latest --mcp grasshopper-mcp

First time? The whole install, step by step

Open Claude Code — the terminal version or the desktop app, either one.
In a terminal, paste the line above and press Enter. In the app, paste it into the chat and ask Claude to run it.
Restart Claude Code. That's the whole install.

What this mcp server does

shell

 1{
 2  "name": "Grasshopper MCP",
 3  "summary": "Analyse .3dm files, model in Rhino, and generate GHPython in Grasshopper",
 4  "repo": "https://github.com/veoery/GH_mcp_server",
 5  "preInstall": [
 6    { "shell": "test -d \"$HOME/.claude-arch/gh-mcp-server\" || git clone https://github.com/veoery/GH_mcp_server \"$HOME/.claude-arch/gh-mcp-server\"" },
 7    { "shell": "cd \"$HOME/.claude-arch/gh-mcp-server\" && uv venv && . .venv/bin/activate && uv pip install -e ." }
 8  ],
 9  "mcpServers": {
10    "grasshopper": {
11      "command": "${HOME}/.claude-arch/gh-mcp-server/.venv/bin/python",
12      "args": ["${HOME}/.claude-arch/gh-mcp-server/run_server.py"]
13    }
14  },
15  "postInstallNotes": "Experimental; the README marks the project as under construction. Requires Rhino 7 or 8 with the RhinoPython listener: start Rhino and run the CodeListener command before connecting. On Windows the python path becomes .venv\\Scripts\\python.exe."
16}
17

Back to all MCPs

Grasshopper MCP

Analyse .3dm files, model in Rhino, and generate GHPython in Grasshopper

Runs as a server Claude Code connects to. It needs its own configuration, and some servers need an API key.

Install just this one

Run in your terminal — needs Node

npx archtmpl@latest --mcp grasshopper-mcp

First time? The whole install, step by step

Open Claude Code — the terminal version or the desktop app, either one.
In a terminal, paste the line above and press Enter. In the app, paste it into the chat and ask Claude to run it.
Restart Claude Code. That's the whole install.

What this mcp server does

shell

 1{
 2  "name": "Grasshopper MCP",
 3  "summary": "Analyse .3dm files, model in Rhino, and generate GHPython in Grasshopper",
 4  "repo": "https://github.com/veoery/GH_mcp_server",
 5  "preInstall": [
 6    { "shell": "test -d \"$HOME/.claude-arch/gh-mcp-server\" || git clone https://github.com/veoery/GH_mcp_server \"$HOME/.claude-arch/gh-mcp-server\"" },
 7    { "shell": "cd \"$HOME/.claude-arch/gh-mcp-server\" && uv venv && . .venv/bin/activate && uv pip install -e ." }
 8  ],
 9  "mcpServers": {
10    "grasshopper": {
11      "command": "${HOME}/.claude-arch/gh-mcp-server/.venv/bin/python",
12      "args": ["${HOME}/.claude-arch/gh-mcp-server/run_server.py"]
13    }
14  },
15  "postInstallNotes": "Experimental; the README marks the project as under construction. Requires Rhino 7 or 8 with the RhinoPython listener: start Rhino and run the CodeListener command before connecting. On Windows the python path becomes .venv\\Scripts\\python.exe."
16}
17

Back to all MCPs