Developers have consumed APIs as a matter of practice for some time now. It's second nature. But the flip side--creating an API--is not performed with the same regularity. To some extent, this is changing as more developers become both consumers and providers of APIs. Below you'll find some tools and services that make the process of creating an API much simpler.
APIs tend to go wherever the data is, so with more data than ever showing up in Hadoop, it stands to reason that APIs would soon follow. At the Strata Conference and Hadoop World 2013 event today, Cloudera announced a Cloudera Connect: Innovators program under which developers are invited to build applications that invoke an API that Cloudera in partnership with DataBricks has created for its distribution of Hadoop.