HappyCAD is an AI-native CAD environment designed as your AI CAD teammate for mechanical engineering and 3D modeling.
Instead of bolting a chatbot plug-in onto legacy CAD software, HappyCAD puts a full CAD environment inside the AI: hardware engineers describe a mechanical part or assembly in plain words and immediately get editable 3D CAD models, dimensioned 2D engineering drawings, and clean STEP files ready to open in SolidWorks, Autodesk Fusion, or Onshape.
Built on three years of enterprise agent infrastructure by the Energent team (YC), HappyCAD streamlines routine part design, brackets, fixtures, and enclosures with built-in manufacturability checks.
