Inday - Public Holiday API

io.github.gokhanibrikci/inday-holiday-api

Connects Claude to Inday's public holiday API covering 30+ countries. You get straightforward queries for checking whether a date is a holiday, counting working days between dates, and pulling full calendar data by country and year. Reach for this when you're building scheduling tools, calculating business day intervals, or need to validate dates against regional holidays in user-facing apps. The streamable HTTP transport means you can run it remotely without local setup. Saves you from maintaining your own holiday dataset or wrestling with inconsistent regional calendar rules across different markets.

tools: 5
auth: Secret needed
transport: HTTP
last updated: Apr 13, 2026

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Tools

5 tools

Public tool metadata for what this MCP can expose to an agent.

get_calendarGet the full list of public holidays for a country in a given year. Also returns total working days and weekends.2 params

Get the full list of public holidays for a country in a given year. Also returns total working days and weekends.

Parameters* required

country_codestring

ISO 2-letter country code (e.g. TR, DE, US, AE, GB)

yearinteger

Year (e.g. 2026)

check_holidayCheck if a specific date is a public holiday or working day in a country. Returns holiday name and type if it's a holiday.2 params

Check if a specific date is a public holiday or working day in a country. Returns holiday name and type if it's a holiday.

Parameters* required

country_codestring

ISO 2-letter country code (e.g. TR for Turkey, DE for Germany, US for United States, AE for UAE)

datestring

Date to check in YYYY-MM-DD format (e.g. 2026-04-23)

count_working_daysCount the number of working days between two dates in a country, excluding weekends and public holidays. Useful for project planning, payroll, and deadlines.3 params

Count the number of working days between two dates in a country, excluding weekends and public holidays. Useful for project planning, payroll, and deadlines.

Parameters* required

country_codestring

ISO 2-letter country code (e.g. TR, DE, US)

from_datestring

Start date in YYYY-MM-DD format (inclusive)

to_datestring

End date in YYYY-MM-DD format (inclusive)

list_countriesList all countries supported by Inday. Returns country codes and names.

List all countries supported by Inday. Returns country codes and names.

No parameter schema in public metadata yet.

next_holidayFind the next upcoming public holiday in a country from today (or a given start date).2 params

Find the next upcoming public holiday in a country from today (or a given start date).

Parameters* required

country_codestring

ISO 2-letter country code (e.g. TR, DE, US)

from_datestring

Optional start date in YYYY-MM-DD format. Defaults to today if not provided.

Details

Category: Data & Analytics
Transport: HTTP
Auth: Required
Registry: MCP registry, active

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