A few weeks ago we reported on the release of the Kiva API, which provides access to the Kiva.org global microlending database. Not long after the API's release, blog posts from Bill Zimmerman and the Kiva team report that several developers are already working on Kiva mashups:
DataCash, global payments services provider, has announced that its fraud management solution (GateKeeper 2.0) will be the first of its kind to integrate MasterCard's Lost-Stolen Account List API. The MasterCard API cross-references over 30 million lost and stolen cards globally. The integration will empower merchants with greater fraud detection capabilities and lessen the potential to reject legitimate customers.