com.kernelcad/kernelcad

up checked 2026-11-11T05:38:14.842Z

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Publisher-provided title

kernelCAD

Publisher-provided description

CAD in ChatGPT and Claude: editable parts, STEP/STL/drawings, in-chat 3D, automatic checks.

Summary by lookupd

Authors and edits parametric CAD scripts, builds 3D models, exports STEP/STL/drawings, and runs geometry and electrical design checks.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http kernelcad https://mcp.kernelcad.com/mcp

Codex, remote (streamable-http)

codex mcp add kernelcad --url https://mcp.kernelcad.com/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "kernelcad": {
      "url": "https://mcp.kernelcad.com/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (showing 30 of 81)

Publisher-provided text

• review_paint_peek_latest Return the newest brush-painted review packet from a Studio session. After sharing a /p/<slug> link, the user can open it in the browser and paint marks over th
• open_in_studio Save the model as a kernelCAD project AND show it: persists a project revision, returns the interactive Studio viewer (MCP Apps / ChatGPT outputTemplate), and i
• get_project Use this when you need to reopen a saved project or browse what the user has saved — it fetches a kernelCAD Studio project, or lists the signed-in user's saved
• get_project_revision Fetch the exact immutable .kcad source and parameters captured at a prior `open_in_studio` version. Use this to read-after-write verify a release: pass the retu
• get_latest_render Render a project's current model server-side and return it as an inline image so you can SEE what you built. Prefer open_in_studio for the happy path — it alrea
• get_model_mesh Return the raw per-feature triangle mesh (positions/indices/normals) of a project's current model, by slug. For the in-chat 3D viewer widget to render geometry;
• request_upload Use this when the user has a photo, PDF drawing, STEP, STL, DXF, SVG or 3MF file on their device and you need it in a kernelCAD tool (trace_from_image, drawing_
• lookup_authoring_skill Return the kernelcad-authoring skill — conventions for writing .kcad.ts scripts (API surface, parameters, evaluation contract, common pitfalls) — in sections.
• mesh_summary Mesh a kernelCAD .kcad.ts source server-side and return a COMPACT geometry summary — overall bounds plus, per feature, its id, kind, triangle count, and boundin
• report_need Use this when the user needed something kernelCAD does not have, so the gap is recorded instead of papered over. kind: asset (search_assets returned coverage no
• netlist_export Build the electrical netlist from a schematic — the flat connectivity of every component pin and net, the way KiCad's netlist export works. Use this to turn a
• netlist_query Ask a net-level question about a schematic: what connects to what. MODES (`query`): • "net" — the full membership of one net (`net` required). • "pin
• erc_run Run an electrical rule check (ERC) on a schematic and return structured diagnostics — the KiCad ERC step, over MCP. CHECKS: duplicate reference designators; ne
• search_assets Search the public kernelCAD asset catalogue of published models. This is not find_part (screws, bearings, NEMA). Read-only. Anonymous callers are allowed. Do no
• get_asset Fetch one public catalogue asset by slug. Read-only. No sign-in and no API key. A built-in kit/id returns the free editable downloads.source (.kcad.ts), studio_
• get_asset_pack Return a short-lived signed URL for a catalogue asset zip (mesh, params, licence). Read-only. No sign-in. The URL is already signed. Fetch it with GET. Do not s
• evaluate_script Run a script and check the built model against its declared requirements. A full result has buildOk for geometry availability and ok for overall acceptance: a f
• diff_scripts Use this when you need to see exactly what changed between two script versions. Structured geometric delta between two versions of a kernelCAD script — a baseli
• inspect Use this when you need to read facts about a model. One reader, selected by `of`: - 'assembly' — physical assembly inventory (parts, bboxes, connectors, mates,
• verify Use this when you need to check a design against a rule set. One verifier, selected by `check`: - 'assembly' — static assembly review ({ file | code }, or the s
• why_did_this_fail Use this when you need to trace why a feature failed. Walk the upstream chain of a failing feature. Returns the diagnostics of the requested feature plus the di
• set_param Use this when you need to edit a param() default value in a kernelCAD script. Returns the modified code as text plus diagnostics from re-evaluating the result.
• add_feature Use this when you need to insert a new feature line into a script. Insert a new feature line into a kernelCAD script before the last top-level return statement.
• add_surface Use this when you need an organic, freeform, or swept shape — a body shell, panel, fairing, ergonomic curve, lens, or sculpted form — authored as a NURBS Surfac
• add_curve Use this when you need a freeform/organic 3D curve — a body feature line, brow, spine rail, or curve bridge between panel boundaries — authored as a Curve3D int
• add_path_segment Use this when you need a freeform/organic 2D outline — an eyewear brow, ergonomic grip, sneaker midsole, or body silhouette — by appending a curved segment to a
• trace_from_image Use this when you need to trace a reference image into normalized waypoints. Trace pixel-space features from a reference photo into normalized [0..1] waypoints
• add_variable_sweep Use this when you need an organic swept solid whose cross-section changes along its length — a tapering body, horn, bottle, handle, ring band, fairing, or duct
• add_text Use this when you need to author text into a kernelCAD script before the last top-level return. One authoring path, selected by `mode`: - 'sketch' — insert a sk
• project_curve Use this when you need to wrap a 2D closed curve onto a 3D face. Insert a `<shape>.projectCurve({ source, face, scaleMode? })` chained call into a kernelCAD scr

Details

• Version: 0.17.1
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 948 ms
• First indexed: 2026-11-01T08:54:45.996Z
• Last seen in registry: 2026-11-01T08:54:46.015Z
• Repository: https://github.com/w1ne/kernelCAD-web
• Website: https://kernelcad.com/

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