Authentication

A BUX is only as useful as the accounts it can reach. Authentication uses Browser Use Profiles: reusable bundles of cookies and storage attached to your account. You can sync them from your local Chrome (here) or build them by hand from the dashboard (here).

We highly encourage you to either sync your local cookies or create profiles manually from the dashboard ahead of time. If you have not done that, or the agent needs access to a site you have not authorised yet, the live login flow kicks in.

Live login

When the agent hits a login wall, it sends you a live URL from the VM’s remote browser. You sign in once and BUX saves the cookies for next time.

1. Agent hits a login wall

   Claude Code detects the credential prompt and pauses.

2. BUX sends you a live URL

   The URL streams the VM’s actual Chrome to your laptop or phone. Open it in any browser.

3. You sign in

   Type your password, complete 2FA, do whatever the site asks. The site sees a real browser with a real user.

4. BUX captures the session

   Cookies and storage are saved into a profile attached to your account. The agent picks up where it left off, and every later run reuses the profile.