Calendarific

Calendarific provides a worldwide holiday data platform and RESTful API for businesses and developers. Its service offers access to public, national, local, and bank holidays, along with religious events and other observances across more than 230 countries and territories, 3,300 states and regions, and over 100 languages. Holiday data is aggregated from multiple sources, verified, and updated regularly.

Through a single API endpoint and key, users can filter results by country, year, month, holiday type, and region, and request translated holiday names and descriptions. The platform includes API documentation, JSON responses, code samples, client libraries, and endpoints for exploring countries and languages. Its data supports workflows in payroll and human resources, scheduling and logistics, regional operations, and localization, helping organizations plan leave, pay dates, and closures. Calendarific also offers a free sign-up, account dashboard for tracking API usage, and an enterprise option with support service-level agreements, invoicing, multiple keys, and a dedicated account manager on request. Public holiday calendars can also be browsed by country.