Give your coding agent the ability to design real, manufacturable parts. Hand Claude Code or Codex a prompt, a sketch, or image. It writes build123d or CadQuery scripts, then runs agentcad to check its own work, catching broken code, confirming the geometry is watertight and dimensionally correct, and rendering it from every angle so your agent fixes its mistakes before you ever see them. You get back an interactive viewer plus STEP / STL / GLB files — ready to inspect, edit, or print.
Agentcad is a free and open-source CAD design tool that enables coding agents to create manufacturable parts by generating and validating build scripts. It provides an interactive viewer and exports files in STEP, STL, and GLB formats for inspection and 3D printing.