Mother's Day Calendar API alternatives

Mother's Day dates, country rules, sources and confidence as static JSON and CSV. If it doesn't fit your project, here are the 10 best free Calendar APIs to use instead in 2026, out of 23 in the directory.

For reference, Mother's Day Calendar API: No API key needed · 100% uptime (30 days) · Callable from the browser (CORS).

1. 1

   caldays API

   Online · 1122 ms

   Public holidays for 195+ countries.

   • No API key needed
   • 100% uptime (30 days)
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
2. 2

   CountdownsHQ API

   Online · 1344 ms

   Dates and timezone-correct countdowns for 150+ holidays and observances in 18 countries.

   • No API key needed
   • 100% uptime (30 days)
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
3. 3

   HolidayExplore API

   Online · 1223 ms

   Global public holidays and bank closures.

   • No API key needed
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
4. 4

   Intellibook API

   Online · 2237 ms

   Appointment booking and availability API for salons and clinics.

   • No API key needed
   • 100% uptime (30 days)
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
5. 5

   The Calendar API

   Online · 3247 ms

   Public holidays for US states and 30 countries plus sports and finance calendars as static JSON.

   • No API key needed
   • 100% uptime (30 days)
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
6. 6

   Non-Working Days API

   Online · 6097 ms

   Simple REST API for checking working, non-working or short days for Russia, CIS, USA and other.

   • No API key needed
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
7. 7

   India Public Holidays API

   Online · 1907 ms

   Official Indian public holidays for the Central government and 36 states/UTs.

   • No API key needed
   • 100% uptime (30 days)
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
8. 8N

   Namedays Calendar API

   Online · 3053 ms

   Provides namedays for multiple countries.

   • No API key needed
   • 100% uptime (30 days)
   • Callable from the browser (CORS)
   • HTTPS

   No authHTTPSCORS
9. 9

   UK Bank Holidays API

   Online · 2998 ms

   Bank holidays in England and Wales, Scotland and Northern Ireland.

   • No API key needed
   • 100% uptime (30 days)
   • Returns JSON at its URL
   • HTTPS

   No authHTTPSCORS ?
10. 10

    Non-Working Days API

    Online · 2917 ms

    Database of ICS files for non working days.

    • No API key needed
    • 100% uptime (30 days)
    • HTTPS

    No authHTTPSCORS ?

Mother's Day Calendar API vs alternatives

Mother's Day Calendar API compared with its alternatives

API	API key	HTTPS	CORS	Uptime	Response	Rating
Mother's Day Calendar	No	Yes	Yes	100%	2492 ms	Not rated
caldays	No	Yes	Yes	100%	1122 ms	Not rated
CountdownsHQ	No	Yes	Yes	100%	1344 ms	Not rated
HolidayExplore	No	Yes	Yes	Up	1223 ms	Not rated
Intellibook	No	Yes	Yes	100%	2237 ms	Not rated
The Calendar	No	Yes	Yes	100%	3247 ms	Not rated
Non-Working Days	No	Yes	Yes	91.7%	6097 ms	Not rated
India Public Holidays	No	Yes	Yes	100%	1907 ms	Not rated
NNamedays Calendar	No	Yes	Yes	100%	3053 ms	Not rated

See also: best Calendar APIs · all Calendar APIs