Stormpath provides developers with Identity and Access Management tools to bolster security in any application. There is a free developer's version, as well as these paid versions: pro, premium and enterprise.
The tools do the following:
Hosts and Deploys user directories in the Cloud
Authenticates users and secures their passwords with one click
Manages hierarchies and RBAC with a drag-n-drop interface or API
Drops in code for user workflows like password reset, account verification and locking
Handles all the user security maintenance, so the user is ahead of attackers