The official Stormpath Ruby SDK by Stormpath calls the Stormpath REST API which provides developers with a user management infrastructure. Features include authentication, schema-less user data and social media login with Facebook and Google OAuth. It requires Ruby 1.9.3+.
The company tracking cloud spending will now let you spend money on its service. Cloudability believes that with more businesses are moving to the cloud, monitoring the costs is becoming important. Now it's put a price on that importance, including a free plan that will track up to $2,500 per month on more than 80 services, including AWS platforms like Amazon EC2. Of course, there's a Cloudability API so you can get at your data however you want.