There actually is some gae specific authentication https://cloud.google.com/appengine/docs/standard/python/config/appref#handlers_login https://cloud.google.co

There actually is some gae specific authentication https://cloud.google.com/appengine/docs/standard/python/config/appref#handlers_login https://cloud.google.com/appengine/docs/standard/python/conf... But it has nowhere near the features of Firebase Auth.