The Metropolis Calendar API supplies an accurate and reliable information about holidays all over the world. Metropolis also provides an useful date calculator and a week day indicator in the idiom of your choice. Plain and simple.
This API provides a list of holidays observed throughout year 2014, including the date, weekname and description of the holiday. Also, you can use this API to add or subtract any number of days given a specific date, or you can add or subtract days to a date to calculate a past or future date. Usage example: What date will it be in 30 workdays ?
During every step of the implementation process, Metropolis team will be glad to answer any question or technical concern.
You can use the Calendar API for free (up to 50 calls per day) during the roll-out phase.
Metropolis API is hosted at Python Anywhere (Amazon's EC2 datacenter). All the APIs are tested every minute, through a number of processes, checking the speed performance and all the features supported.
Metropolis API Offices: São Paulo, Brazil and Virginia, USA