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.
The following is a list of SDKs from our SDK directory that matched your search term. Though your definition of an SDK may differ, in our world, we define SDKs as platform- specific tools for consuming existing APIs of the sort we list in our API directory. For example, the Ruby SDK for consuming the Twitter Ads API. If you think an SDK, API, or other asset is missing from our directory, be sure to check our guidelines for making contributions to ProgrammableWeb.