OAuth-connected accounts
From the Accounts API reference. Requests use the base URL https://app.warmerly.com/api/v1 and an API key, see Authentication.
Outlook.com and Microsoft 365 accounts can also be connected via OAuth instead of raw SMTP/IMAP credentials. That is a browser sign-in flow built for the dashboard's Add mailbox → Microsoft wizard, and it is not part of this reference. Gmail and Google Workspace connect with SMTP/IMAP and a Google app password (smtp.gmail.com:465, imap.gmail.com:993); mailboxes connected with Google OAuth before 2026-09-15 keep working. Once connected (by either method), the resulting account is fully manageable through this API.