Set Up the Profile
Name the profile

Name the profile, then click Next.
Choose how to sign in

Choose Open a browser and sign in.
Sign into Google in the captured session

Enter a Google domain, e.g. accounts.google.com, and sign in.

Once signed in, click Save to store the session.
Confirm the profile is ready

Profile saved — google.com shows as Signed in.
Run the Agent With the Profile
This is the same goal as the API example below — a form titled “Event RSVP” with a required short-answer name field and a required multiple-choice attendance question.Attach the profile to a goal in the Playground

Pick the profile, describe the form, then click Run.
Watch it build the form live

Signed in automatically — the agent adds and configures each question.
Get the published form and its link

Run complete — Open Form is the published, shareable link.
Or With the API
profile_id and just send use_profile: true to use the account’s
default profile instead of a specific one.
Common Mistakes
use_profile: true with no default profile
use_profile: true with no default profile
400 if the account has no default Browser Context Profile
yet. Create one and set it as default first, or pass an explicit
profile_id instead. Full error table: Common errors.Session looked captured but the run still hits a login wall
Session looked captured but the run still hits a login wall
use_vault: true) so TinyFish can repair an
expired session instead of failing the run — see Browser Context Profiles + Vault.