Free for fair use (10,000 requests/day). Holidays for 195 countries, real-time, CDN-cached. No API key required for read endpoints.
Returns an array of holidays for one country in one year. Type = "national", "joint", or "regional".
10,000 requests per IP per day. For higher volume: commercial tier $29/month (100k/day) or $199/month (10M/day) with no per-IP rate-limit. No lock-in, cancel anytime.
The caldays holiday dataset is released under Creative Commons Attribution 4.0. You can use it commercially, redistribute it, or build paid products on top of it — we only ask that you credit caldays with a visible link, e.g. "Holiday data: caldays.com" in your footer, about page, or API response.