Free APIProductivityAPI keyOfficial
Calendarific
Global holiday calendar for 230+ countries with rich typing
Calendarific is a holiday data API covering 230+ countries with national, local, religious, and observance holidays, plus subdivision (state/province) granularity. The free developer tier allows 500 API calls per month and requires a free API key (no credit card), with limited historical and upcoming data.
Free tier
500 calls/month free, no credit cardRate limits
500 requests/month on the free plan; per-second limits not publishedAuth
API keyBase URL
https://calendarific.com/api/v2What you'd build with it
- State/province-level holiday lookups (Calendarific supports subdivisions)
- Building a multi-country holiday calendar widget
- Filtering by holiday type (national vs observance) for scheduling logic
Key endpoints
- GET
/holidaysHolidays for a country and year, filterable by type, month, day, location - GET
/countriesList of supported countries - GET
/languagesSupported languages for localized holiday names
Members
Members get the runnable recipe
Sign in free to copy the example request, see a sample response, and read the gotchas.
Tags
holidayscalendardatesgeo