ClassCAD vs cadloop OpenSCAD
ClassCAD is an MCP server published by awv-informatik. Marketplaces we read that list it: 2 (Official MCP Registry, npm registry (MCP servers)). cadloop OpenSCAD is an MCP server published by richardofortune. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-25. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  ClassCAD |  cadloop OpenSCAD |
|---|---|---|
| Official MCP Registry | Listed Version: 0.6.1 Downloads/month (npm): 5 669 Downloads/week (npm): 1 952 Forks (GitHub): 12 Stars (GitHub): 169 Not marked · First seen |
Listed Version: 0.1.0 Downloads/month (PyPI): 140 Downloads/week (PyPI): 34 Forks (GitHub): 0 Stars (GitHub): 1 Not marked · First seen |
| npm registry (MCP servers) | Listed Version: 0.6.1 Downloads/month (npm): 5 669 Downloads/week (npm): 1 952 Forks (GitHub): 12 Stars (GitHub): 169 Not marked · First seen |
Not listed |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | ClassCAD | cadloop OpenSCAD |
|---|---|---|
| Marketplaces that list it (differs) | 2 (better) | 1 (worse) |
| Stars (GitHub) (differs) | 169 (better) | 1 (worse) |
| Forks (GitHub) (differs) | 12 (better) | 0 (worse) |
| Last release (differs) | 2026-10-20 | Not published |
| Where it runs (differs) | On your machine (@classcad/mcp) | On your machine (cadloop) |
| Transport | stdio | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | Not published | 4, secrets among them: 0 |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/awv-informatik/classcad-ai | github.com/richardofortune/cadloop |
| Changes in the last 7 days (differs) | 2 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
ClassCAD
Build and verify CAD parts and assemblies with the ClassCAD engine, locally, no server needed.
cadloop OpenSCAD
Compile OpenSCAD, read computed values, preview and measure the mesh, without a GUI.
How to run each
ClassCAD As a local MCP server: npm package
claude mcp add --transport stdio classcad -- npx -y @classcad/mcpcadloop OpenSCAD As a local MCP server: PyPI package
claude mcp add --transport stdio cadloop-openscad -- uvx --from cadloop cadloop-openscad cadloopCommands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
The marketplaces of ClassCAD publish no settings it asks for, so we do not compare settings.
What it can do: ClassCAD · What it can do: cadloop OpenSCAD · Compare two other plugins
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Package data comes from the public npm registry (registry.npmjs.org). Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.