The official Plenigo iOS SDK by Plenigo calls the Plenigo RESTful API which allows developers to integrate an e-commerce platform for digital media. It supports billing, analytics and subscription management.
Do you know what's relevant to your customer? Having 100 customers means you know there are 100 different answers. Futurelytics, whose mission is, "Let's make Data Science available to everyone," has released an API that aims at making sure each of your offerings is of maximum relevance to each customer. The RESTful Futurelytics API brings these predictive analytic features to your applications through JSON responses.
Kooaba offers image recognition through its Kooaba API, allowing you to compile metadata on objects in your photos. This can be used for product recognition and pricing, but could also be used to augment personal photo collections, which can be so large that they are nearly impossible to search by hand. There are tons of use cases for image recognition and this API should really open up the field and bring more applications to market.
If you weren't at the #VegasHack public data hackathon on Saturday, February 23, 2013, you sure missed an “open data” great time. Vegas Hack and Code For America collaborated to bring a civic innovation hackathon for people dedicated to finding new solutions to address real issues in the community.