Top Google Calendar Alternatives & Similar APIs (2026)
Looking for alternatives to Google Calendar? Compare 8 verified free and public APIs in the calendar category with rate limits, auth methods, and ready-to-use snippets.
Alternatives Feature Comparison
8 Options| API Service | Auth Type | Rate Limit | CORS | Action |
|---|---|---|---|---|
| Calendarific | Free Key | 1000 istek/ay | HTTPS • CORS | Explore |
| Nager.Date | No Key (Zero-Auth) | Sınırsız | HTTPS • CORS | Explore |
| World Time | No Key (Zero-Auth) | Sınırsız | HTTPS • CORS | Explore |
| Sunrise Sunset | No Key (Zero-Auth) | Sınırsız | HTTPS • CORS | Explore |
| Holiday API | Free Key | 10.000 istek/ay | HTTPS • CORS | Explore |
| Eventbrite | Free Key | 2000 istek/saat | HTTPS • CORS | Explore |
| Ticketmaster | Free Key | 5000 istek/gün | HTTPS • CORS | Explore |
| TimeZoneDB | Free Key | 1 istek/sn | HTTPS • CORS | Explore |
Detailed Breakdown of Google Calendar Alternatives
Calendarific
Global holiday API covering national, regional, religious, and cultural events
Nager.Date
Worldwide public holidays and bank observances across 100+ countries
World Time
Current local time, UTC offsets, and timezone calculations microservice
Sunrise Sunset
Sunrise, sunset, dawn, dusk, and solar noon calculation engine
Holiday API
Historical and current holiday data across 250+ countries and federal territories
Eventbrite
Event ticketing, attendee registration, venue management, and analytics
Ticketmaster
Live concert ticketing, venue discovery, artist tours, and event passes
TimeZoneDB
Precise worldwide timezone data, daylight saving time, and coordinates
Choosing the Best Alternative to Google Calendar
Which alternative is quickest to start?
Alternatives labeled "Zero-Auth" do not require registration or API keys. You can swap your endpoint URL and test in minutes without creating provider accounts.
Are these alternatives free for production?
All listed alternatives offer legitimate free tiers or open data licenses. Review the specific rate limits on each API detail page to ensure your traffic stays within quota.