cadquery-mcp-server

MCP server that exposes CadQuery-based CAD generation and automated model validation tools to AI assistants.

MCP serverNot statedDormantMCAD

What it does and how it connects

CAD-Query MCP Server is an MCP server that exposes CadQuery functionality through MCP tools for conversational 3D modeling with Claude Code. Its verify_cad_query tool validates CadQuery-generated models against criteria, returning PASS or FAIL with a message, and it exports STL and STEP and generates SVG for visual inspection.

The README is explicit that the generate_cad_query tool is a stub implementation: it returns NOT_IMPLEMENTED and states CAD code generation is not yet implemented. CadQuery scripts must end with show_object(result) to be processed.

It installs with uv sync, runs with the MCP Inspector for interactive testing, and configures into Claude Desktop with a stdio command. The repository was last pushed in June 2025, and a user issue from August 2026 reports the server fails to start on Linux without manual patching.

What engineers report

The server cannot run on Linux without manual patching. There are 4 bugs that prevent it from working outside the original macOS development environment.
2026-08-08Read the original

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Recurring errors it addresses

Error Index entries this tool is built to reduce or work around.

A committed STEP file quietly stopped matching its builder code: the shell referenced faces up to 529 but the data ended at 17, importing as an invalid zero-volume shell.Error Index

Sources

Not verified

License: the GitHub API returns no license and no license file was found, so no license is stated.
No GitHub releases exist, so latest release fields are null.
Pricing: none stated on the repo.
Activity: last push 2025-06-29, so the project looks quiet; no releases exist.
A named individual builder beyond the repository owner handle Rishi Gundakaram

Last verified November 6, 2026. Listings are informational. The evidence score measures public, verifiable evidence and is not an endorsement or a compatibility claim.