Sometimes the API world can get a little meta. Cloudability is a startup focused solely on helping companies determine how much they're spending in the cloud. Now the company is entering public beta, which includes launching its Cloudability API. That makes the service another API for APIs.
Recently we wrote about the wonders of PubSubHubBub and what was possible when services push data, in real time, to external web apps. Twitter's Stream API makes it clear that we're headed towards an exciting and very real-time web. Now YouTube is along for the ride.