Forgent3D icon Forgent3D agent sees CAD

AI CAD Previewer / local MCP

From prompt to parametric CAD

Connect Codex, Claude Code, and Cursor to turn prompts into verifiable parametric CAD geometry.

Codex Claude Claude Code Cursor Cursor
Download Forgent3D GitHubView GitHub
runner://workspace/flange rebuild_model ok
agent bridge

clients4 ready

rebuild_modelok

screenshot_modeliso

get_model_infobbox

models/bracket/part.py

prompt = "motor bracket"
result = build_part(params)

agent.verify(
  rebuild=True,
  screenshot="iso",
  bbox=True,
)

bbox

84 x 84 x 18 mm

Agent Loop

Stop editing CAD by guesswork

Make every agent change grounded in geometry evidence returned by tools.

01

Write

Generate CAD code

02

Rebuild

Build real geometry

03

Read

Screenshots / bbox / status

04

Iterate

Tune and iterate

Core Signals

Three evidence signals for agents

Geometry

Agent sees geometry

See real geometry instead of guessing.

Rebuild

Rebuild on save

Save code and rebuild instantly.

Evidence

Evidence for iteration

Readable screenshots, bbox, and status.

Use Cases

Code-first mechanical modeling

Mechanical parts

Brackets / flanges / fixtures

Parametric prototypes

Iterate dimensions and hole patterns

AI modeling

Align outputs with evidence

Open Source

Let agents start seeing models

Download latest release View source code