Hi, I'm co-founder and dev at Userbin. We want the integration of Userbin to feel somewhat similar to what you're used to when working with your favorite Ruby, Node or PHP auth library, rather than being a provider of a cloud-based database of user records. To be in the cloud is not the essence of Userbin, more a vehicle for providing a common configuration interface and suite of management tools.

View Userbin as a kind of aggregator of all the boring and tedious things involved in setting up OAuth connections, designing login flows and tweaking transactional emails. For every new user that signs up through your Userbin account, you create your own local copy of its Userbin profile, much like you're used to when integrating an OAuth provider.