Calendarific provides a JSON API for all national holidays observed in all countries around the world.
Based on our record, Calendarific seems to be more popular. It has been mentiond 2 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Https://date.nager.at/Api This is the only free one from what I can tell. There are a couple of paid ones https://www.abstractapi.com/holidays-api and https://calendarific.com/ with 1000/month free tiers so it'll depend on your use case. Source: about 2 years ago
Calendarific - Enterprise-grade Public holiday API service for over 200 countries. Free plan includes 1000 calls per month. - Source: dev.to / over 2 years ago
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