CAD-MCP
MCP server that lets AI agents drive AutoCAD, GstarCAD, and ZWCAD through natural-language drawing commands, with a draw, inspect, and correct feedback loop.
Summary rewritten from the vendor site because the catalog version did not match it.
What it does and how it connects
CAD-MCP is an MCP server that lets users create and modify CAD drawings through natural-language instructions without operating the CAD interface by hand. Version 2.0 is built on the MCP specification with FastMCP, structured output, tool annotations, and progress notifications, and adds 35 tools covering querying, editing, layers, drawing management, blocks, and command passthrough, forming a draw, inspect, and correct feedback loop.
It supports AutoCAD, GstarCAD (GCAD), and ZWCAD on Windows, driving the application through its COM interface. Drawing tools cover lines, circles, arcs, ellipses, rectangles, polylines, text, pattern filling, and dimension annotation, plus erase, move, rotate, scale, copy, mirror, offset, array, and undo/redo. Query tools list layers and model-space entities, return entity properties by handle, and screenshot the CAD window for preview.
The server runs over stdio for a local single client or Streamable HTTP for remote or multiple clients sharing one CAD instance. Query tools are marked read-only and destructive operations are marked for client confirmation, and input validation errors return as tool errors so the model can self-correct. A send_command escape hatch executes any CAD command directly.
Alternatives
Compare side by side- SolidCraft
SolidCraft is a parametric 3D CAD application with a built-in MCP server, while CAD-MCP drives AutoCAD, GstarCAD, and ZWCAD through MCP.
- agentcad
agentcad is a CLI and MCP server over build123d scripts, while CAD-MCP drives AutoCAD, GstarCAD, and ZWCAD through MCP.
- CADAgent
CADAgent is a Fusion 360 add-in driven by a self-hosted backend, while CAD-MCP drives AutoCAD, GstarCAD, and ZWCAD through MCP.
- Serpentine3D
Serpentine3D is a standalone NURBS modeller with an assistant and MCP, while CAD-MCP drives existing AutoCAD-family applications through MCP.
- cad3dify
cad3dify converts 2D CAD images into STEP models with vision-language models, while CAD-MCP drives live AutoCAD-family sessions through MCP.
Sources
Not verified
- Pricing: none stated on the repo
- Real user voices (no real linked post read for this page)
- Related Error Index entries (no matching entry verified)
- A named individual builder beyond the daobataotie repository owner
- A standalone website (repo only)
Last verified November 6, 2026. Listings are informational. The evidence score measures public, verifiable evidence and is not an endorsement or a compatibility claim.