io.github.KittyCAD/zoo-mcp vs io.github.gpambrozio/onshape
io.github.KittyCAD/zoo-mcp is an MCP server published by KittyCAD. Marketplaces we read that list it: 2 (Official MCP Registry, PyPI (MCP servers)). io.github.gpambrozio/onshape is an MCP server published by gpambrozio. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-11-10. 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 |  io.github.KittyCAD/zoo-mcp |  io.github.gpambrozio/onshape |
|---|---|---|
| Official MCP Registry | Listed Version: 0.34.3 Downloads/month (PyPI): 30 236 Downloads/week (PyPI): 21 536 Forks (GitHub): 1 Stars (GitHub): 11 Not marked · First seen |
Listed Version: 0.3.0 Downloads/month (npm): 1 027 Downloads/week (npm): 173 Forks (GitHub): 1 Stars (GitHub): 7 Not marked · First seen |
| PyPI (MCP servers) | Listed Version: 0.34.3 Downloads/month (PyPI): 30 236 Downloads/week (PyPI): 21 536 Forks (GitHub): 1 Stars (GitHub): 11 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 | io.github.KittyCAD/zoo-mcp | io.github.gpambrozio/onshape |
|---|---|---|
| Marketplaces that list it (differs) | 2 (better) | 1 (worse) |
| Stars (GitHub) (differs) | 11 (better) | 7 (worse) |
| Forks (GitHub) | 1 | 1 |
| Last release (differs) | 2026-11-07 (better) | 2026-10-28 (worse) |
| Where it runs (differs) | On your machine (zoo_mcp) | On your machine (@gpambrozio/onshape-mcp) |
| Transport | stdio | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | 1, secrets among them: 1 | 3, secrets among them: 2 |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/kittycad/mcp | github.com/gpambrozio/onshape-mcp |
| Changes in the last 7 days (differs) | 7 | 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
io.github.KittyCAD/zoo-mcp
An MCP server that provides access to the Zoo API for various CAD operations and tools.
io.github.gpambrozio/onshape
Drive Onshape CAD from an assistant: documents, sketches, solid features, assemblies and exports.
How to run each
io.github.KittyCAD/zoo-mcp As a local MCP server: PyPI package
claude mcp add --env "ZOO_TOKEN=<YOUR_ZOO_TOKEN>" --transport stdio zoo-mcp -- uvx zoo_mcpRequires: ZOO_TOKEN (secret)
io.github.gpambrozio/onshape As a local MCP server: npm package
claude mcp add --env "ONSHAPE_ACCESS_KEY=<YOUR_ONSHAPE_ACCESS_KEY>" --env "ONSHAPE_SECRET_KEY=<YOUR_ONSHAPE_SECRET_KEY>" --transport stdio onshape -- npx -y @gpambrozio/onshape-mcpRequires: ONSHAPE_ACCESS_KEY (secret), ONSHAPE_SECRET_KEY (secret)
Commands 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
Only io.github.KittyCAD/zoo-mcp asks for
ZOO_TOKEN (secret)
Only io.github.gpambrozio/onshape asks for
ONSHAPE_ACCESS_KEY (secret)ONSHAPE_MCP_OUTPUT_DIRONSHAPE_SECRET_KEY (secret)
Settings as each marketplace publishes them. Asking for fewer is not better in itself.
What it can do: io.github.KittyCAD/zoo-mcp · What it can do: io.github.gpambrozio/onshape · Compare two other plugins
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Package data comes from the Python Package Index (pypi.org). Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.