@User yes. Your frontend can query the APIs exposed by our backend SDK. The APIs are here: https://github.com/supertokens/frontend-driver-interface/blob/master/v1.8.0.md
In the above file, APIs are divided by recipe.
This being said, you may still want to use our session management lib (supertokens-website, or the session recipe from supertokens-auth-react)