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Free Calendar & Events APIs
Free calendar & events APIs collected from the open public-apis dataset (MIT) and link-checked by AKCLNT. Listings marked 📋 are link-checked; listings marked ✅ have passed our full endpoint test.
✅ Verified = endpoint-tested by us · 📋 Listed = link-checked, endpoint test pending
17 APIs · 0 live-verified · 9 need no key
Data on national, regional, and religious holidays via API
Listed · link checked 22 Oct 2026📁 Calendar & Events · Free tier — confirm exact limits in the official docs
Booking API for small businesses in Japan: event types, open slots, bookings, invite links and webhooks, with API keys on the free plan
Listed · link checked 22 Oct 2026📁 Calendar & Events · Free tier — confirm exact limits in the official docs
Worldwide Holidays
Listed · link checked 22 Oct 2026📁 Calendar & Events · Free tier — confirm exact limits in the official docs
Dates and timezone-correct live countdowns for 150+ holidays and observances in 18 countries
Listed · link checked 22 Oct 2026📁 Calendar & Events · Free tier — confirm exact limits in the official docs
Various date and time calculations
Listed · link checked 22 Oct 2026📁 Calendar & Events · Free tier — confirm exact limits in the official docs
Generates iCal calendar events that can be used across calendar applications
Listed · link checked 22 Oct 2026📁 Calendar & Events · Free tier — confirm exact limits in the official docs
Display, create and modify Google calendar events
Listed · link checked 22 Oct 2026📁 Calendar & Events · Free tier — confirm exact limits in the official docs
Convert between Gregorian and Hebrew, fetch Shabbat and Holiday times, etc
Listed · link checked 22 Oct 2026📁 Calendar & Events · Free tier — confirm exact limits in the official docs
Historical data regarding holidays
Listed · link checked 22 Oct 2026📁 Calendar & Events · Free tier — confirm exact limits in the official docs
Provides namedays for multiple countries
Listed · link checked 22 Oct 2026📁 Calendar & Events · Free tier — confirm exact limits in the official docs
Database of ICS files for non working days
Listed · link checked 22 Oct 2026📁 Calendar & Events · Free tier — confirm exact limits in the official docs
Public and school holidays for many countries via an open REST API
Listed · link checked 22 Oct 2026📁 Calendar & Events · Free tier — confirm exact limits in the official docs
Check if a date is a Russian holiday or not
Listed · link checked 22 Oct 2026📁 Calendar & Events · Free tier — confirm exact limits in the official docs
Bank holidays in England and Wales, Scotland and Northern Ireland
Listed · link checked 22 Oct 2026📁 Calendar & Events · Free tier — confirm exact limits in the official docs
Search events, venues and performers
Listed · link checked 22 Oct 2026📁 Calendar & Events · Free tier — confirm exact limits in the official docs
Search local events in plain words: concerts, comedy, pop-ups, markets and classes, with times, venues and prices
Listed · link checked 22 Oct 2026📁 Calendar & Events · Free tier — confirm exact limits in the official docs
Search events, attractions, or venues
Listed · link checked 22 Oct 2026📁 Calendar & Events · Free tier — confirm exact limits in the official docs