Ring builder API

Build your own ring builder powered by Pencil's custom CAD platform.

Connect Claude or ChatGPT to our API and let AI build for you.

Build it your way with our API

Set up in minutes, not months. Build your own custom UI or connect Pencil in between your website and your pro

Flexible

Build anything you can imagine,
powered by Pencil's powerful CAD platform

Easy

Set up in minutes

100,000+

Designers using Pencil

5,000,000+

Customization options

5 minutes

Time to create first design

90%

Cheaper than hiring someone