Drive parametric CAD from agents over MCP

An open-source Rust parametric CAD tool supports MCP so agents can build models.

Difficulty
IntermediateOur rating
Time to build
Not reportedOur estimate
Monthly cost
Not reported
Revenue
Not reportedWe only show revenue the source states
Engagement
141 HN points51 comments · fetched Oct 15, 2026

What they did

bherbruck built SolidCraft with MCP support.

How it went

141 points on HN.

Worth knowing

A tool launch rather than a usage report.

Builder recipe

Our own starting point, written from the source. Adapt it to your setup.

Stack

  • SolidCraft
  • Claude or Codex

Steps

  1. List the devices and data sources.
  2. Have the agent write the integration code.
  3. Test on one device first.
  4. Automate and monitor.

Starter prompt

Model a wall bracket for a 25 mm pipe with two M5 holes, 4 mm thick, then export STL.

Tags

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