zoo-mcp MCP Server
An MCP server that provides access to the Zoo API for various CAD operations and tools.
Publisher claimed. No tool list reported, and Pod has not connected to this server.
Status
Pod has not dialled zoo-mcp yet, so everything on this page is what its publisher reported rather than what we observed. Registries describe servers; they do not connect to them. Until a check runs, treat the tool list below as a claim.
Connect
Published as zoo_mcp on pypi. Runs locally.
Known issues
22 problems reported by people outside the maintainer team. Issues filed by the project's own owners, members and collaborators are excluded — those are release checklists and internal refactors, not things that will go wrong for you. Showing 12.
Most discussed
Bound CAD snapshot import latency and reconnect retries when an engine response stalls
Summary
CAD inspection can block synchronously for minutes while waiting for the engine's import response, then repeat the same expensive attempt after every reconnect. In production, repeated inspect(..., camera_view="multiview", zoom=true) attempts against the same public-supplier STEP attachment remained open until the conversation reconnected. On reconnect, unrelated documentation and retrieval tools completed, while inspect alone stalled again. This loop continued for more than an h
Read the thread · 2026-08-19 · closed · outside contributor · 4 comments
Add an MCP tool to inspect and visualize sketch-region topology
Summary
Add an MCP tool that returns both machine-readable sketch-region topology and a high-contrast PNG for a sketch in an active modeling session.
Zookeeper can currently validate KCL and take 3D snapshots, but it cannot inspect the 2D topology that Engine used when deciding whether sketch segments form regions. When region creation or solid lofting fails, the agent therefore has to infer whether the cause is an open loop, self-intersection, wrong arc sweep, incorrect winding, an exterio
Read the thread · 2026-08-27 · open · outside contributor · 1 comment
Return CAD physical-analysis vectors in one coordinate frame
Return CAD physical-analysis vectors in one coordinate frame
Summary
calculate_cad_physical_properties can return center_of_mass and
bounding_box in different coordinate frames.
The center of mass comes from the API's file center-of-mass endpoint in the format library's internal OpenGL frame. The bounding box comes from STL mesh coordinates: either the original STL or a default CAD-to-STL conversion. The default imported-model/STL convention is KittyCAD coordinates. The combined re
Read the thread · 2026-08-27 · closed · outside contributor · 1 comment
Publish to MCP registry
Read the thread · 2025-09-16 · closed · 1 comment
Use the composite file physical-properties endpoint for CAD analysis
Problem
calculate_cad_physical_properties currently makes separate Zoo API requests for volume, mass, surface area, center of mass, and CAD-to-STL conversion for local bounds. The same source can therefore be uploaded, imported, and tessellated up to five times for one MCP tool call. When STEP analysis is asynchronous, this can create multiple long-running worker jobs for the same customer request.
KittyCAD/api#4491 adds a composite POST /file/physical-properties operation that imports
Read the thread · 2026-08-29 · open · outside contributor · 0 comments
Most recent
Bound sketch constraint status calls that can hang indefinitely
During a Zookeeper Pro smoke run, kcl.get_sketch_constraint_status() appears to have hung indefinitely. zoo_get_sketch_constraint_status() awaits it through _execute_with_retries(), but retries only begin after an exception and there is no deadline for a call that never returns.
Please add a bounded timeout/cancellation path and return a clear timeout error to callers.
TTC caller-side guard: https://github.com/KittyCAD/text-to-cad/issues/4009
Evidence:
- [Opik trace](https://www.comet.c
Read the thread · 2026-08-08 · open · outside contributor · 0 comments
Add MCP tooling for org skills
Similar to org datasets, org skills should be available via mcp tools
Read the thread · 2026-07-09 · closed · 0 comments
Add tools for under/over/fully constrained sketches
See this diff for modeling app python bindings
Read the thread · 2026-04-13 · closed · 0 comments
Simplify kcl_code and kcl_path to just kcl_path
The use of both kcl_path and kcl_code is cumbersome. Functions that use both should accept a single input and then it's determine by the function where the string is code or a path to a kcl project/single file
Read the thread · 2026-03-02 · open · 0 comments
Down sample and image resolution parameters
The underlying tools for snapshots should allow downsampling images, since images can eat up a lot of LLM context
Read the thread · 2026-03-02 · closed · 0 comments
Use latest zoo-kcl for kcl -> model analysis
The current functionality of creating model analyses (mass, volume, surface area) when using a KCL project/file requires the project to be exported first to a cad interop file, like .step, before a analysis can be created. In the latest release of zoo-kcl a direct kcl project to physical properties functionality exists so that should be used over the current implementation to save processing/io time
Read the thread · 2026-03-02 · closed · 0 comments
Add svg2kcl tool
https://github.com/KittyCAD/svg2kcl
Read the thread · 2026-03-02 · open · 0 comments
See all 17 reports Pod holds for zoo-mcp — of 22 qualified upstream.
Firsthand observations
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For agents
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