Add Account

On Token, go to Settings → Add Account first. The device only accepts an incoming account while that screen is open and listening. When you click "Add to Token" below, your browser will ask you to pick Token's serial port — it talks to the device directly, so this works no matter where this page itself is hosted.

Review

Name
Issuer
Secret

Digits and period aren't sent — Token always uses its own defaults (6 digits, 30s) for accounts added this way.

Your browser doesn't support Web Serial, so it can't talk to Token directly. Use a recent Chrome, Edge, or Opera on desktop.