kernelCAD

Was du damit machen kannst

Für diesen Server haben wir noch keine Zusammenfassung in einfacher Sprache geschrieben. Unten stehen die Fakten, die wir aus der Registry gelesen haben.

• Verbindung: Läuft in der Cloud
• Transport: Streamable HTTP
• Kategorie: Chat & E-Mail

Installation

Wähle die KI-App, die du nutzt, und kopiere die Einstellungen.

Du brauchst

• Läuft in der CloudNichts zu installieren; die Verbindung läuft übers Internet

Welche App nutzt du?

https://mcp.kernelcad.com/mcp

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

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

{
  "servers": {
    "kernelcad": {
      "type": "http",
      "url": "https://mcp.kernelcad.com/mcp"
    }
  }
}

https://mcp.kernelcad.com/mcp

Deine Auswahl bleibt in einem Cookie auf diesem Gerät; kein Konto nötig.

Diese Einstellungen werden aus dem Registry-Eintrag des Entwicklers erzeugt. Wenn in der README etwas anderes steht, folge der README.

Was er kann

Tool-Namen und -Beschreibungen genau so, wie der Server sie am 7. Nov. 2026 gemeldet hat. Geschrieben hat sie der Entwickler, nicht wir; wir zeigen sie als reinen Text.

• review_paint_peek_latest

  Return the newest brush-painted review packet from a Studio session. After sharing a /p/ link, the user can open it in the browser and paint marks over the 3D viewport to give visual feedback. Call this tool with the `slug` from that link to see the strokes — screenshot + mask +

• 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 includes a PNG preview in the SAME tool result (image content + previewUrl when available). ONE VIEWER PER PROJECT PER RE

• 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 projects. Pass `slug` (from a /p/ link or a prior listing) to fetch that project's full .kcad source and metadata — then

• 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 returned `slug` and `version`, then hash or inspect the returned source. Public/unlisted projects use the slug as capability

• 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 already includes an iso PNG preview in the same publish result when previewDelivered is true. Use this tool for a different `

• 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; delivered over the MCP Apps bridge. The slug is the capability: public/unlisted need no OAuth; private requires the own

• 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_to_cad, mesh_to_features, inspect of:"step", or lib.fromSTEP / fromSTL / fromDXF / fromSVG / referenceImage in a script)

• lookup_authoring_skill

  Return the kernelcad-authoring skill — conventions for writing .kcad.ts scripts (API surface, parameters, evaluation contract, common pitfalls) — in sections. Call with NO arguments first: you get the quick-start (units, axes, the return rule, the rules that prevent most failures

• 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 bounding box. Use this to INSPECT a model's geometry without a viewer: confirm a part is the size/shape you expect, see how man

• 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 none or poor: the catalog does not model it), capability (a tool cannot do what was needed), output (a tool answered, but

• 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 not send an API key. Use source:"library" for the free built-in model library. Search its titles, tags or kit IDs, and dow

• 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_url, thumbnail_url and license. Download the source with plain GET. For community slugs, returns the search fields plus

• 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 send an API key or an Authorization header. It expires quickly; read expires_at. Share download_url with the user. Units

• evaluate_script

  Use this when you need to run a script and check it compiles. Full local builds return viewerUrl: a live Studio link reused and updated on later full builds in the same MCP process. Hosted builds return viewerMode: hosted and viewerHint pointing to open_in_studio; they do not sta

• 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 baseline ({ baseFile } or { baseCode }) and a revision ({ file } or { code }). Returns agent-readable JSON: per-part added/rem

• 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, disconnected solids). - 'robot' — URDF/SDFormat export preview (links, joints, planning groups, end-effectors, issues).

• 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 session evaluate_script left): mate validator, default-pose interference, joint topology, mechanical plausibility. ok:fal

• 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 diagnostics of every upstream feature in topological order (the requested feature is the last entry). Per-code hints are i

• 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. Caller persists the new code via standard file-write tools (this tool has no side effects). With preview: true it builds

• 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. Returns the modified code as text plus diagnostics from re-evaluating the result. Side-effect-free. Primitives that acc

• 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 Surface into the user's .kcad.ts, OR when you need to finish surfaces into a watertight solid or taper faces for moldability.

• add_curve

  Use this when you need a freeform/organic 3D curve — a body feature line, brow, spine rail, or G2 blend between panels — authored as a Curve3D into the user's .kcad.ts immediately before the last top-level return. One authoring path, selected by `kind`: - 'nurbs' — insert a `nurb

• 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 an existing PathBuilder chain on the named `chain_anchor` variable. The call is injected at the END of the chain, immedia

• 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 the agent can map to mm via a known scale anchor and feed to path().spline / path().nurbsSegment. Three backends are dis

• 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 — authored as a variable-section sweep along a spine. Inserts `variableSweep(spine, sections, opts?)` into the .kcad.ts

• 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 sketch.text(...) call. The emitted sketch is chainable: pair with subsequent .extrude(...) / cut(...) edits to land an eng

• project_curve

  Use this when you need to wrap a 2D closed curve onto a 3D face. Insert a ` .projectCurve({ source, face, scaleMode? })` chained call into a kernelCAD script. The `source` is the structured `{ kind: "sketchCommands", commands: [...] }` wire format the runtime API accepts. Wraps t

• add_pattern_feature

  Use this when you need to repeat a feature in a pattern. Insert a Shape.patternLinear / .patternCircular / .patternGrid call into a kernelCAD script before the last top-level return. Pass structured args (kind + the matching spec object). Returns the modified code plus diagnostic

• remove_feature

  Use this when you need to remove a feature line from a script. Remove a single line from a kernelCAD script identified by a substring match. Returns the modified code plus diagnostics from re-evaluating. Refuses to remove the line containing the return statement. Side-effect-free

• query

  Use this when you need to resolve or inspect topology against a script's lowered geometry. Pass the script as `code` (inline; works on a hosted server) or `file`. Selected by `mode` (default 'evaluate'): - 'evaluate' — list the faces a Query matches ({ query }). Pass expect:'uniq

• lookup_api

  Use this when you need to list the kernelCAD script-runtime surface: global functions (box, path, selectEdges, helix, etc), Shape methods (fillet, sweep, lower, etc), Sketch methods (extrude, revolve, sweep), PathBuilder methods, EdgeQuery/FaceQuery key sets, and featureKindFaceL

• lookup_diagnostics

  Use this when you need the kernelCAD 26-code diagnostic catalogue with hint templates. Tiny one-shot call; useful for an agent that wants to pre-populate retry strategies. Hints are also inline on every emitted diagnostic — this tool just gives you the canonical list up front.

• export

  Use this when you need to export geometry to a file. One exporter, selected by `target`: - target:'model' — export the script geometry to one file. Pass { file | code }, a required { output_path }, and { format }. Supported formats: stl (binary STL mesh), step (BREP CAD interchan

• lookup_cookbook

  Use this when you need a canonical pattern snippet for a CAD task. Search the kernelCAD cookbook for canonical pattern snippets. Returns top-k snippets matching the natural-language query, ranked by BM25 over title/tags/keywords/trigger. Use when you need a canonical pattern for

• find_part

  Search the bundled parts catalog (offline). For a NEMA-17 motor write `await lib.standard.nema17()`; for a 608 bearing write `await lib.standard.bearing608()`. Do not fan out parallel lookups and do not pass partsBaseUrl unless you set source:"remote". Remote lookups fail within

• fetch_part

  Fetch one bundled catalog part. Prefer `await lib.standard.nema17()` and `await lib.standard.bearing608()` — they are offline and do not download remote STEP. A lookup that cannot finish fails within 45s with errorCode parts.lookup.timeout. Do not retry in parallel.

• solve_sketch

  Use this when you need to solve a 2D sketch constraint set. Solve a 2D sketch constraint set. Side-effect-free: pass { entities, constraints } and receive solved entities plus the original constraints. Entities are POINT, LINE, and CIRCLE records; constraints use the kernelCAD co

• add_constraint

  Use this when you need to add a sketch constraint to a list. Append one validated sketch constraint to a constraint list. Side-effect-free: pass { constraints, constraint } and receive the updated list.

• add_part

  Use this when you need to add a part to an assembly. Durably insert `const = .part(partName, shapeExpression, opts?)` before the final top-level return in a kernelCAD source string. Returns modified source plus diagnostics from re-evaluating it. Side-effect-free: caller persists

• add_connector

  Use this when you need to add a mate connector to a part. Durably insert ` .connector(name, { type, origin, axis?, normal? })` before the final top-level return. Use the part binding returned by add_part. Returns modified source plus diagnostics from re-evaluation. Side-effect-fr

• add_mate

  Use this when you need to author a mate-graph relationship into the source, selected by `relation` (default 'mate'): - 'mate' — a typed mate between two connectors ({ name, a, b, type, pose?, limitsDeg?, limitsMm? }). - 'coupling' — couple a driven mate to a source mate by ratio

• add_workspace_target

  Use this when you need to declare a reachability target for a connector. Durably insert ` .workspace(connectorRef, { reachable, toleranceMm? })` before the final top-level return. Workspace targets are checked by solvedModel validation/review pose-envelope gates. Returns modified

• set_scene_return

  Use this when you need to set how the script returns its assembly. Replace the final top-level return statement with `return .model();` or `return .solvedModel(poses, options?);`. Use solvedModel for mate-authored mechanisms so FK and validation run. Returns modified source plus

• solve_mates

  Solve the mate graph and get part poses. Pass code/file for an atomic source-bound solve, or omit both to use the active assembly. Returns { ok, status, poses, iterations?, evaluationEvidence? } where each pose is a serialized Transform ({ translation, rotateAxis, rotateDeg }). O

• review_cad

  Run a deterministic mechanism-fitness review on supplied kernelCAD code or a file. It performs a full evaluation, replaces the active MCP session model on success, and clears that session if evaluation fails. The script may load referenced assets. The review validates the assembl

• design_loop

  Use this when the goal is complex / production / enclosure / gearbox / robot-arm / multi-body, or when you need evaluate→review/verify→revise until green. PREFERRED over one-shot evaluate_script+open_in_studio for Adam-level parts. Runs a CAD design loop over attempt scripts: rev

• flatten_pattern

  Use this when you need the unfolded flat pattern of a bent sheet-metal part. Return the unfolded 2D flat-pattern of a bent sheet-metal Shape as a Region (outer polyline + holes + bend lines + sketch plane). Any number of parallel bends; crossing bends need corner relief. Pass { f

• evaluate_sdf

  Use this when you need to sample a signed-distance field at a point. Sample the signed distance from an in-script sdf.* field at a 3D point. Returns { distance, inside, aabb, kind }. Distance is in mm; negative = inside the surface, 0 = exactly on the surface, positive = outside.

• capture_animation

  Use this when you need to render a script's animation timeline to a video, or a 360° turntable of a model for sharing. Capture a kernelCAD script's animationView({...}) timeline to an MP4 (ffmpeg) or a PNG frame sequence, verifying the sampled poses for part interference. FILE ON

• render_preview

  Use this when you need to LOOK at a kernelCAD model — render its script to deterministic PNG views for visual self-check (the visual half of the evaluate → render → inspect → fix loop), with NO studio or dev server required. Pass { code } (inline source) or { file } (a .kcad.ts p

• resolve_assumptions

  Use this when you need to confirm or override the open facts in an assumption ledger from trace_from_image (missing scale, inferred/assumed values) before committing geometry built from a reference photo. Reads the persisted ` .ledger.json` at `ledgerPath`, applies each resolutio

• run_fea

  Use this when you need to know whether a part will hold a load. Runs a linear-static structural study and returns evidence — peak von Mises stress (MPa), peak displacement (mm), the minimum safety factor against the material yield (taken away from the clamp-singular edges of the

• fea_summary

  Use this when you need a structural check's context without paying for a solve. Read-only: returns the stored summary of a previous run_fea (pass the same `output_dir`), whether the CalculiX + gmsh toolchain is available on this machine (with the install command when it is not; r

• send_to_printer

  Use this when you need to upload a .gcode file (e.g. written by export with target: "model", format: "gcode") to a real network printer and, by default, start the print. protocol: 'octoprint' (POST /api/files/local with an X-Api-Key), 'moonraker' (Klipper's POST /server/files/upl

• repair_script

  Use this when evaluate_script reported an error and you want the fix applied rather than described. Takes the candidates why_did_this_fail derives for a diagnostic, applies them one at a time, re-evaluates after each, and keeps the first that clears the diagnostic without introdu

• sweep_tolerance

  Use this when you need to know where and why a design breaks across a tolerance/dimension range, not just whether it builds at one nominal value. Declares one or more param() names with a { values: [...] } list or a { min, max, steps } range (number params are bisected; choice/st

• diff_geometry

  Use this when you need to know WHAT MATERIAL changed between two versions of a model, not just how much. The deeper sibling of diff_scripts: a volume delta alone is ambiguous (a boss that grew and a pocket that deepened report the same magnitude, and a part that only moved report

• drawing_to_cad

  Use this when the reference for a part is a 2D engineering drawing PDF (orthographic views with dimensions), not a photo. Deterministic, no vision model: reads the vector linework (stroke width, dash) and positioned text; classifies visible / hidden / center / dimension / extensi

• mesh_to_features

  Use this when you are handed an STL, OBJ or 3MF of a mostly prismatic mechanical part (plate, bracket, spacer, flange, housing block) and need an EDITABLE kernelCAD model of it rather than a faceted lib.fromSTL import. Deterministic, measured, self-verifying: it welds and checks

• execute_cookbook

  Use this when you need evaluate_script (and optionally open_in_studio) for an industry / cookbook demo in ONE step — after lookup_cookbook for industry demos, prefer execute_cookbook when you need evaluate+Studio together; empty lookup is not a stop (freehand-author instead). Res

Basischecksi

Wir prüfen Informationen, die jeder sehen kann; den Code haben wir nicht gelesen. Checks, die nicht zutreffen, werden nicht mitgezählt. · Geprüft am 8. Nov. 2026

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README vom Entwickler

npx -y kernelcad mcp

npm install --global kernelcad

curl -fsSL https://kernelcad.com/install.sh | sh

irm https://kernelcad.com/install.ps1 | iex