google-workspace

Use when server-side code reads or writes Gmail, Drive, Calendar, or Sheets with a GCP service account and no human in the OAuth loop: picking the auth mode (app-owned vs domain-wide delegation vs keyless), scoping to least privilege, building the authed Node/Python client, staying under per-user quota, and debugging unauthorized_client / 403 / 429. NOT SMTP providers or deliverability (that is email-connector), NOT…