The Holiday API is a simple web service aiming to provide free programmatic information about holidays worldwide. The API is operational, but is currently building its catalog of country lists. The Holiday API accepts GET requests specifying a country and year, with the option to specify a month or day.
Everybody loves a holiday, and there are hundreds of them around the world every day. Developers looking to create or enhance applications with holiday information can look to ProgrammableWeb for the best APIs to keep their calendars in check. Here, we highlight the eight most popular ones.