Assigning user to groups or create group base on response

Hello,
Really like your plugin, just wondering if it is possible to assign the user to groups on registering? we are using wp_authenticate_user to register the user with jwt auth wp_rest_request to allow users to be able to login if they have a valid token, the token returns a “project_id” let say the project id is “new_york” is it possible to assign a group to the user while login in to that group matching the project_id from the token? how can we implement Groups_User_Group::create( array( 'user_id' => $user_id, 'group_id' => $group_id ) ); and if the group does not exists is there a hook or filter available where it creates a new group based on the project id and assign user to the respective groups?

Thank you