Calendar — entry 014 of 17
Public Holidays
AbstractAPI's Holidays API returns official national, regional, and religious holidays for 200+ countries and states/provinces going back over 100 years, queried with a country code, year, and API key against a JSON REST endpoint shared with Abstract's broader API suite. The free key is explicitly non-commercial/testing-only — shipping it in a production app requires upgrading to a paid plan starting around $17/month per API — and Abstract bundles the same account/key management across all of its other data APIs (email, phone, IP, company enrichment).
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<a href="https://greatapis.com/api/public-holidays/"><img src="https://greatapis.com/badge/public-holidays.svg" alt="Scored 61 on greatapis.com"></a>Auth quickstart
- Sign up with the provider to get an API key.
- Send it on every request as a header
Authorization: <key> - The exact header isn't documented — Authorization is a common default; confirm in the provider's docs.
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.
Developer reference
Free plan: 1,000 requests/month, 1 request/second; Standard plan ($99/mo): ~60,000 requests/year, 3 requests/second -- per abstractapi.com/api/holidays-api