AI-driven 3D CAD via build123d: execute, render, measure, and export geometry interactively.
uvx build123d-mcpAdd this server entry to the mcpServers object in your Claude Desktop config, then restart the app.
{
"mcpServers": {
"io-github-pzfreo-build123d-mcp": {
"command": "uvx",
"args": [
"build123d-mcp"
]
}
}
}~/Library/Application Support/Claude/claude_desktop_config.json%APPDATA%\Claude\claude_desktop_config.jsonNo remote HTTP endpoint is advertised. Use the package or stdio setup shown in Install.
build123d MCP is an MCP server for AI-driven 3D CAD via build123d: execute, render, measure, and export geometry interactively.. It supports STDIO transport.
Use the generated config in Install. This server runs with uvx build123d-mcp; add any required environment variables before starting your client.
Choose the Claude Desktop tab in Install and copy the config for uvx build123d-mcp. Add required environment variables before starting Claude Desktop.
Choose the Claude Code tab in Install and copy the config for uvx build123d-mcp. Add required environment variables before starting Claude Code.
Choose the Codex tab in Install and copy the config for uvx build123d-mcp. Add required environment variables before starting Codex.
Choose the Cursor or VS Code tab in Install and copy the config for uvx build123d-mcp. Add required environment variables before starting Cursor or VS Code.
build123d MCP uses STDIO transport. Use the package or command config in Install.
build123d MCP inventory is listed when the MCP endpoint exposes tools, resources, or prompts. Some servers require auth first.
build123d MCP does not advertise a verified auth requirement. If discovery fails, it may still need provider login, an API key, a bearer token, or a session header.
| Package | Registry | Version | Inputs |
|---|---|---|---|
build123d-mcpstdio | pypi | 0.3.23 | None advertised |