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THE BUILDING BLOCKS

Utilities APIs

Browse utilities APIs by access requirements and source. Open a provider guide to compare authentication, documentation, and usage conditions before integrating.

24APIs to explore

Showing 1–24 of 24 APIs

Docs reviewed
Utilities

Nager.Date

Public holiday dates and local names for country-specific calendars.

◇ No keyFree access
Docs reviewed
Utilities

ipify

Retrieve the public IP address seen by a small JSON endpoint.

◇ No keyFree access
Community listing
Utilities

caldays

Public holidays for 195+ countries

◇ Reported: No keyCheck pricing
Community listing
Utilities

Calendarific

Worldwide Holidays

Reported: API keyCheck pricing
Community listing
Utilities

Checkiday - National Holiday

Industry-leading holiday data with over 5,000 holidays and thousands of descriptions

Reported: API keyCheck pricing
Community listing
Utilities

Church Calendar

Catholic liturgical calendar

◇ Reported: No keyCheck pricing
Community listing
Utilities

Festivo Public Holidays

Fastest and most advanced public holiday and observance service on the market

Reported: API keyCheck pricing
Community listing
Utilities

Google Calendar

Display, create and modify Google calendar events

Reported: OAuthCheck pricing
Community listing
Utilities

Hebrew Calendar

Convert between Gregorian and Hebrew, fetch Shabbat and Holiday times, etc

◇ Reported: No keyCheck pricing
Community listing
Utilities

Holidays

Historical data regarding holidays

Reported: API keyCheck pricing
Community listing
Utilities

LectServe

Protestant liturgical calendar

◇ Reported: No keyCheck pricing
Community listing
Utilities

Namedays Calendar

Provides namedays for multiple countries

◇ Reported: No keyCheck pricing
Community listing
Utilities

Non-Working Days

Database of ICS files for non working days

◇ Reported: No keyCheck pricing
Community listing
Utilities

Non-Working Days

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

◇ Reported: No keyCheck pricing
Community listing
Utilities

Public Holidays

Data on national, regional, and religious holidays via API

Reported: API keyCheck pricing
Community listing
Utilities

Russian Calendar

Check if a date is a Russian holiday or not

◇ Reported: No keyCheck pricing
Community listing
Utilities

The Calendar

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

◇ Reported: No keyCheck pricing
Community listing
Utilities

UK Bank Holidays

Bank holidays in England and Wales, Scotland and Northern Ireland

◇ Reported: No keyCheck pricing
Community listing
Utilities

Byabbe

Seach histories from wikipedia for a particular day

◇ Reported: No keyCheck pricing
Community listing
Utilities

Calendar Index

Worldwide Holidays and Working Days

Reported: API keyCheck pricing
Community listing
Utilities

Feriados API

Brazilian holidays API covering national, state, and municipal holidays for 5,570+ municipalities

Reported: API keyCheck pricing
Community listing
Utilities

OpenHolidays API

Public and school holidays for many countries via an open REST API

◇ Reported: No keyCheck pricing
Community listing
Utilities

TimeZones iCal Library

Database of official time zones and corresponding iCal VTIMEZONE blocks

◇ Reported: No keyCheck pricing
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Know what’s been checked. Reviewed guides include provider documentation and examples. Community listings contain reported information that may have changed. Our methodology →