A CAD design tool for coding agents (free + open source)
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.
Increasingly I find myself working with coding agents on the first drafts of things. I have a general idea of what I want to build and getting it to 80 or 90% allows me to visualize it and give better feedback.
When doing this, I noticed that sometimes I got something back I liked but often coding agents gave me things that had obvious errors, born from the fact that they had no way to visualize / verify their code before handing it back to me.
Agentcad solves this problem. It gives the coding agent the ability to see + verify what it's making along the way allowing it to test what it's building before you see it.
About agentcad on Product Hunt
“A CAD design tool for coding agents (free + open source)”
agentcad launched on Product Hunt on June 9th, 2026 and earned 112 upvotes and 4 comments, placing #15 on the daily leaderboard. 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.
On the analytics side, agentcad competes within 3D Printer, Artificial Intelligence, GitHub and 3D Modeling — topics that collectively have 523.2k followers on Product Hunt. The dashboard above tracks how agentcad performed against the three products that launched closest to it on the same day.
Who hunted agentcad?
agentcad was hunted by James Dillard. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of agentcad including community comment highlights and product details, visit the product overview.
James Dillard