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Checkiday - National Holiday API vs OpenHolidays API

If you need a Calendar API that's easy to integrate, go with OpenHolidays API.

Checkiday - National Holiday API

Industry-leading Holiday API. Over 5,000 holidays and thousands of descriptions. Trusted by the World’s leading companies

OpenHolidays API

Public and school holidays for many countries via an open REST API

Checkiday - National Holiday API

  • Simple API key authentication
  • HTTPS supported

OpenHolidays API

  • No authentication required
  • HTTPS supported
  • CORS enabled for frontend use
FeatureCheckiday - National Holiday APIOpenHolidays API
AuthenticationapiKeyNone
HTTPSYesYes
CORSUnknownYes

When to use which?

OpenHolidays API is the better choice for quick prototypes and hackathons since it requires no authentication. OpenHolidays API works directly from the browser with CORS enabled, making it better for frontend-only apps.