Script API

The kernelCAD script API, grouped by the task you're doing. Every page has an example you can edit and run.

Start a shape The first call in any model: a solid primitive, or a 2D profile to extrude. 46 calls
Add material Turn a profile into a solid, or grow one along a path. 9 calls
Remove material Cut into a solid: bolt holes, pockets, slots, plain subtraction. 6 calls
Combine shapes Merge or intersect solids, or group them without paying for a boolean. 6 calls
Finish edges Break edges, add draft, hollow out a wall, fold sheet metal. 7 calls
Select geometry Pick the edges or faces a feature acts on. Query first, then sort or group what comes back. 13 calls
Place & transform Move a body into position, mirror it, or repeat it. 17 calls
Assemble Build a mechanism from parts: connectors, mates, joints, posed Scenes. 5 calls
Curves & surfaces NURBS curves and surfaces, plus the evaluators for measuring them before they become solids. 30 calls
Measure & verify Ask the kernel what you actually built, and check it before shipping. 9 calls
Parametrize Declare editable dimensions and do arithmetic on them (JS operators throw on a ParamRef). 12 calls
Import & export Bring in vendor geometry, and write models back out. 2 calls
Annotate & present Present a model and declare drawing intent without changing its geometry: text, color, lighting, camera, motion, drawing GD&T, and review requirements. 16 calls

Same tables in one file: docs/cheat-sheet.md. Agents should call lookup_api(query) over the MCP server.