Yes, thats what I've seen before, but, excuse me if I'm not understanding it well. with nodebb's /api
you can easily get data from the forum in the browser (front end), but what I meant is a backend feature, like, when a poll (silly example, I know) is created (post request) store in the database the username, userid, body etc... of the user who is creating it, where the user information was provided directly from the forum and it ensures the authenticity of the session.
ps: sorry for the english level, is also a bit late.