AN easy and free way to look up city & state based on zip code. This API also has additional data in regards to population and age based on zip code. The population and age data comes from the 2010 Census.
Eighteen APIs have been added to the ProgrammableWeb directory in categories including Data, Blockchain, and Voice. Highlights include the Lyrebird API which allows developers to integrate a user's artificial voice into an application. Here's a rundown of the latest additions.