12 Best APIs with calendar in Nigeria

We've analyzed and compared the top 12 API providers supporting calendar for Nigerian developers and businesses. Find the right infrastructure fit for your startup below.

Written by Editorial Staffs as at 12th June, 2026

All APIs with calendar

Compare	Public Holiday API	Abstract Holidays API	Timeanddate Public Holidays	Open Holidays API	Outlook Calendar API (Microsoft Graph)	Google Calendar API	Liturgical Calendar API	Nager.Date Holidays API	Holidays API by Holidays API	Nigeria Public Holidays API	REST Countries API	Easter Date API
Pricing	Free tier: 1,000 requests/month, Paid available	Free: 1 request/month. Paid from $9/month for higher limits.	Free browser access, API available with subscription	Completely free and open-source	Free with Microsoft account	Free for development, quota-based usage	Completely free. No API key required.	Completely free. Open-source. No API key required.	Free tier available, Paid plans available	Completely free for Nigeria holidays	Completely free, no authentication	Completely free API
API Access	Yes	No	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes
JSON Responses	Yes	No	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes
HTTPS Secure	Yes	No	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes
Documentation	Yes	No	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes
Sandbox	Yes	No	Yes	No	Yes	Yes	No	No	Yes	No	No	No
Free Tier	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes
Nigerian Public Holidays	No	Yes	No	No	No	No	No	Yes	No	No	No	No
200+ Countries	No	Yes	No	No	No	No	No	No	No	No	No	No
JSON Response	No	Yes	No	No	No	No	No	No	No	No	No	No
Historical Dates	No	Yes	No	No	No	No	No	Yes	No	No	No	No
Future Planning	No	Yes	No	No	No	No	No	No	No	No	No	No
250+ Countries	No	No	No	No	No	No	No	Yes	No	No	No	No
No Authentication	No	No	No	No	No	No	No	Yes	No	No	No	No
Future Date Planning	No	No	No	No	No	No	No	Yes	No	No	No	No
Regional Variants	No	No	No	No	No	No	No	Yes	No	No	No	No
Long Weekend Detection	No	No	No	No	No	No	No	Yes	No	No	No	No
Free Forever	No	No	No	No	No	No	No	Yes	No	No	No	No
Open Source	No	No	No	No	No	No	No	Yes	No	No	No	No
JSON & iCal	No	No	No	No	No	No	No	Yes	No	No	No	No
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