Inday - Public Holiday API

Public holiday data for 30+ countries.

CommunityOnlineAPI key requiredGlobalFreeRead-only

What it can do

  • Get Calendar: Get the full list of public holidays for a country in a given year. Also returns total working days and weekends.
  • Check Holiday: 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.
  • Count Working Days: Count the number of working days between two dates in a country, excluding weekends and public holidays. Useful for project planning, payroll, and deadlines.

What data it sees

Do you need an account

An API key from the service settings is required

Public holiday data for 30+ countries. Check holidays, working days, and full calendars via AI assistants like Claude, Cursor, and VS Code. Powered by Inday.

How to connect

How to connect Inday - Public Holiday API to Claude

The server address to paste into Claude settings:

https://inday-api--gokhanibrikci.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect Inday - Public Holiday API to ChatGPT

The server address to paste into ChatGPT settings:

https://inday-api--gokhanibrikci.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect Inday - Public Holiday API to Cursor

The server address to paste into Cursor settings:

https://inday-api--gokhanibrikci.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (5)

Raw names from tools/list. Only developers need these.

get_calendarGet the full list of public holidays for a country in a given year. Also returns total working days and weekends.
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.
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.
list_countriesList all countries supported by Inday. Returns country codes and names.
next_holidayFind the next upcoming public holiday in a country from today (or a given start date).