Zoo MCP (KittyCAD/mcp)
Official Zoo MCP server that lets AI agents execute KCL in persistent modeling sessions, import CAD, take snapshots, and generate CAD from text.
Summary rewritten from the vendor site because the catalog version did not match it.
What it does and how it connects
Zoo MCP is the official MCP server from Zoo (formerly KittyCAD). It lets AI agents execute KCL, the KittyCAD Modeling Language, in persistent modeling sessions, so a model stays live across prompts instead of being rebuilt from scratch each time.
Beyond KCL execution it supports CAD import, snapshots, and text-to-CAD, with KCL samples drawn from public Aquarium projects. It authenticates by device login or with a ZOO_API_TOKEN, runs over stdio by default with a Streamable HTTP option, and ships prebuilt binaries with each release.
It is the official server for the Zoo Design API, and it is the backend that zapim builds on for its enclosure generator.
Alternatives
Compare side by side- zapim
A parametric enclosure generator that builds KCL from board presets through the Zoo Design API, rather than the official Zoo MCP server itself.
- Autodesk Fusion MCP Server
Autodesk's built-in local MCP server for live Fusion modeling, rather than Zoo's official MCP server for KCL.
- RhinoAI (Rhino MCP Platform)
McNeel's first-party Rhino plugin and MCP server for Rhino and Grasshopper, rather than Zoo's official MCP server for KCL.
- onshape-mcp (mbvjdev)
A local MCP server that gives AI agents rate-limited tools to create and inspect Onshape parts, rather than Zoo's official MCP server.
Sources
Not verified
- Pricing: none stated on the repo; the Zoo Design API is used and its pricing is not stated here.
- No independent user voice found: recent issues and PRs are by maintainers or contributors, with no user experience report.
- Related Error Index entries: no matching entry verified for this KCL modeling server.
- A standalone website: the repo has no homepage set.
- A named individual builder beyond Zoo (KittyCAD).
Last verified November 6, 2026. Listings are informational. The evidence score measures public, verifiable evidence and is not an endorsement or a compatibility claim.