Connect your server

The workbench drives a local open-lease server in your browser. Start it with this page allowed as a cross-origin caller, then connect below. Your server URL and token stay in this browser and are sent only to your machine.

gpu serve --cors-origin https://<this-page-origin>

On first connect, Chrome asks permission for this page to reach your local network. Allow it: the request only goes to the server on your machine. If a running server still reads as unreachable, that permission is usually why.