World Public Holidays

dev.omikuji/holidayVersion 1.2.0

Public holidays, business days and long weekends for about 250 countries, in each local time zone.

Status

Responds397 msNov 14, 2026, 14:26 UTCAnswered our handshake without sign-in.

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Last checked: Nov 14, 2026, 14:26 UTC
Latency: 397 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://holiday.omikuji.dev/mcpResponds397 msNov 14, 2026, 14:26 UTC

No sign-in

Claude Code

claude mcp add --transport http holiday https://holiday.omikuji.dev/mcp

Claude Desktop and claude.ai

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Settings > Connectors > Add custom connector
Name: holiday
Remote MCP server URL: https://holiday.omikuji.dev/mcp

Cursor

{
  "mcpServers": {
    "holiday": {
      "url": "https://holiday.omikuji.dev/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"holiday","type":"http","url":"https://holiday.omikuji.dev/mcp"}'

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Tools

4 tools

Tools of World Public Holidays
	Description		Read-only	Idempotent	Open world
`business_days`Count business days between start and end (inclusive), or find the date that is N business days after start (add=N; negative N goes backward; start itself is not counted). Uses the country's weekend days, public holidays and make-up working days. For Japan, set year_end_closed to also skip 12/29-1/3.	Count business days between start and end (inclusive), or find the date that is N business days after start (add=N; negative N goes backward; start itself is not counted). Uses the country's weekend days, public holidays and make-up working days. For Japan, set year_end_closed to also skip 12/29-1/3.	No	Yes	Yes	No
`check_dates`For each date, tell whether it is a public holiday in the country (with its name and status), a weekend, and a business day, including make-up working days such as China's 调休. Also returns today in that country's time zone. For Japan, the kind is also given: 祝日 (national holiday) / 振替休日 (substitute holiday) / 国民の休日 (citizens' holiday).	For each date, tell whether it is a public holiday in the country (with its name and status), a weekend, and a business day, including make-up working days such as China's 调休. Also returns today in that country's time zone. For Japan, the kind is also given: 祝日 (national holiday) / 振替休日 (substitute holiday) / 国民の休日 (citizens' holiday).	No	Yes	Yes	No
`find_long_weekends`Find long weekends: 3+ consecutive days off made of weekends and public holidays in the country (e.g. Japan's Golden Week, China's National Day Golden Week). Give a year, or from (default today) to list upcoming ones.	Find long weekends: 3+ consecutive days off made of weekends and public holidays in the country (e.g. Japan's Golden Week, China's National Day Golden Week). Give a year, or from (default today) to list upcoming ones.	No	Yes	Yes	No
`list_holidays`List a country's public holidays for a year, or between from and to (and make-up working days, if any). With no year or range, lists the next 10 holidays from today in that country.	List a country's public holidays for a year, or between from and to (and make-up working days, if any). With no year or range, lists the next 10 holidays from today in that country.	No	Yes	Yes	No

Details

Registry status: Active
Published: Oct 30, 2026
Updated: Oct 30, 2026
Website: https://holiday.omikuji.dev/en/ai/⁠ (opens in a new tab)
Repository: Not given
Categories: Uncategorized
GDPR: Not declared

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