ThePrototype

theprototype.app is a free, collaborative 3D prototyping app that runs in the browser (desktop, phone or VR). With this connector, Claude builds in the scene: add and arrange shapes and lights, make things move and react (spin, bounce, follow a path, open on a click), add physics, write small game rules, and look at the result through a picture of the scene. Everyone in your session sees each change live, and every step Claude takes appears in Agent activity with its own Undo.

Claude works only through the tab where you pressed Connect Claude, with exactly your rights there: if you are a viewer, it can look but not build; locked objects stay locked. It cannot open or save files, change your settings or see anything outside that tab. Give it a session link and it can ask your tab to join: nothing happens until you press Join on the card in the tab. Disconnect stops it at once; Revoke in Settings ▸ Connected apps removes its access. The connector relays requests to your tab and stores no scene content, prompts or results.

Made for voice: ask "What can you do here?", "Build a campfire with five logs and a warm light" or "Make the box spin slowly", and Claude answers in a sentence.