BrowserBook allows users to create 'auth profiles' which can be utilized in notebooks for authentication purposes. These profiles currently support username/password and 2FA via TOTP (and we recommend provisioning a service account for your automations).

For captchas, we use Kernel's stealth mode which includes a captcha solver.

Re: CI integration, today we support API-based execution, but if you have a specific CI pipeline or set of tools you'd like to see support for, let us know and we can look into it!