Calendarific is a public holiday and calendar data API covering 230+ countries. See 2026 pricing tiers, request limits, features, pros and cons for developers.
Calendarific is an API that supplies structured public holiday and calendar data for more than 230 countries, covering national holidays, regional and local observances, and religious holidays, returned as JSON that developers can filter by country, year, and holiday type. The underlying problem it solves is less trivial than it sounds: holiday rules differ enormously between countries, change over time as governments add or adjust observances, and for many religious holidays are determined by lunar or lunisolar calendars that shift dates from year to year rather than falling on a fixed date.
Applications that need to know when holidays occur, booking and travel platforms, HR and payroll systems, e-commerce sites adjusting shipping or promotions, and calendar and scheduling tools, would otherwise need to build and continually maintain this data set internally, verifying it against official government sources on an ongoing basis. Calendarific centralizes that maintenance work into a single API so client applications can query up-to-date holiday data instead of hand-maintaining static lists that inevitably go stale.
Calendarific's Free plan allows 500 API calls per month with attribution required, community support only, single-language holiday names, and quarterly data updates, which is enough to prototype an integration but not to run it in production for most applications. The Starter plan removes the attribution requirement, adds email support and complete historical and upcoming holiday data in national languages, and is priced at $12 per month billed monthly or $100 per year billed annually, with a 10,000 call per month limit.
Higher tiers are only available on annual billing: the Business plan costs $500 per year for 50,000 calls per month with priority support, all languages, weekly data updates, and a dedicated account manager, while the Enterprise plan costs $4,000 per year for up to 50,000,000 calls per month with dedicated support and daily updates. All paid tiers include CSV/XLS export, premium API parameters, multiple API keys, and SLA coverage, with billing processed through Stripe.
Calendarific is best suited to development teams building applications where holiday-awareness materially affects the product experience or business logic, such as international booking platforms calculating availability, payroll and HR systems computing time off across multiple countries, or e-commerce platforms adjusting delivery estimates around holidays. The free tier is a reasonable way to validate the integration during development before committing to a paid plan.
Because pricing scales cleanly from a $12-per-month Starter tier up to a $4,000-per-year Enterprise tier supporting tens of millions of monthly calls, Calendarific can fit both small side projects and high-traffic production applications, with the main decision point being how many holiday lookups the application needs per month and whether features like weekly or daily data update frequency and priority support justify the higher-tier pricing.
Calendarific is an API that provides structured public holiday and calendar data covering more than 230 countries, including national, regional, and religious holidays.
Yes, Calendarific offers a free plan limited to 500 API calls per month, with attribution required and quarterly data updates.
Paid plans start at $12 per month (or $100 per year) for the Starter plan with 10,000 calls per month, scaling up to $500 per year for Business (50,000 calls/month) and $4,000 per year for Enterprise (50,000,000 calls/month).
Yes, paid plans return holiday names in national languages, while the free plan is limited to a single language.
Update frequency varies by plan, from quarterly on Free and Starter plans to weekly on Business and daily on Enterprise.
Calendarific uses Stripe to process all premium subscription payments.
No, Business and Enterprise plans are only available on annual billing; monthly billing is limited to the Free and Starter plans.
Common use cases include booking and travel platforms, HR and payroll systems, e-commerce platforms adjusting for holidays, and calendar and scheduling applications.