qcad-mcp

FastMCP server plus web app that opens QCAD Pro drafting to AI agents.

MCP serverOpen sourceMaintainedMCAD
Repository

What it does and how it connects

qcad-mcp is a FastMCP 3.4 server plus web app for AI-driven 2D CAD automation, covering DXF and DWG parsing, 3D extrusion, a persistent file depot, room analysis and full CRUD management. The README presents it as making the AI assistant a QCAD Pro operator, with 12 MCP tools in version 0.5.0, each taking an op discriminator, plus four prefab cards.

The tools are built on ezdxf, a free Python engine, for parsing, rendering, extrusion and analysis. Conversion between DWG and DXF, QCAD Pro scripting, rendering and execution run through QCAD Pro itself. The server also exposes a REST API and a web app with a dashboard, depot file browser, DXF viewer, chat with an LLM, and pages for extrusion, analysis, layers, blocks, scripts and settings, on backend port 11966 and dashboard port 11967.

All CAD files live in a persistent depot that survives server restarts and system reboots, with full CRUD over the REST API. Companion servers in the same author's fleet, blender-mcp and freecad-mcp, are optional and unlock 3D scene extrusion and 2D-draft-to-parametric-3D respectively, with no transitive dependency chains.

What engineers report

  • Hi! I'm preparing a contribution to qcad-mcp focused on a safer live connection between ChatGPT/Codex and the QCAD GUI.
    2026-08-27Read the original

Alternatives

Compare side by side
  • dwg-mcp

    A local MCP gateway that drives AutoCAD 2022 to 2027 through an in-process plugin, rather than a FastMCP server plus web app for QCAD Pro.

    Difference source
  • cad-skills

    A two-module skill pack that teaches an AI agent AutoCAD automation and GB/T design standards, rather than a FastMCP server plus web app for QCAD Pro.

    Difference source
  • kjdraw

    An open-source CAD engine for AI agents that compiles intent into editable DXF drawings, rather than a FastMCP server plus web app for QCAD Pro.

    Difference source

Sources

  1. 1READMEgithub.com
  2. 2GitHub repo statsapi.github.com
  3. 3Latest releasegithub.com
  4. 4User issue 1github.com

Not verified

  • Pricing: none stated on the repo.
  • Related Error Index entries: no matching entry verified (the live error map has no QCAD entries).
  • A named individual builder beyond the repository owner handle sandraschi

Last verified November 6, 2026. Listings are informational. The evidence score measures public, verifiable evidence and is not an endorsement or a compatibility claim.