Instead of a single API, this week we're highlighting Mashery's new API discovery hub. The hub indexes APIs ranging from the The Guardian Open Platform to the Cheezburger Developer Network.

And if you build something cool with one of those APIs, be sure to submit it to the new applications directory showcasing apps built by developers using Mashery-powered APIs.

The company also launched a new API monitoring tool and released some open source Oauth diagnostic tools through its Github account.

Mashery offers tools and services to help companies create and maintain APIs. Over 25,000 developers joined Mashery's network in the past six months, bringing the total membership to approximately 95,000 members.

Mashery competes with Apigee and Programmable Web.

Disclosure: Mashery is a ReadWriteWeb sponsor, as is Programmable Web's parent company Alcatel-Lucent.