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Japan & World Public Holidays

Public holidays, business days and long weekends for Japan (Cabinet Office) and 245 other countries.

Connector by omikuji.dev · Domain verified by the MCP Registry

IndexedLicense unknownRemote (HTTP)
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Install

Works with Claude Code, VS Code, Cursor, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install connector/omikuji-dev-holiday

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

Remote endpoint

  • https://holiday.omikuji.dev/mcp Remote (HTTP)

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About

Public holidays, business days and long weekends for Japan (Cabinet Office) and 245 other countries.

Reviews

Write a review

No reviews yet. Installed it? Reviews come from verified installers only. How reviews work

Permissions

What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.

Tools
4 read · 0 write · 0 deleteRead-only
Secrets
None asked for
Install scripts
Nothing to install (hosted)
Runs as
Hosted (remote endpoint)

Tools by what they do 4

From the running server's own tool list (tools/list) on Oct 25, 2026.

Read 4 · Look things up without changing anything.

  • business_days
  • check_dates
  • find_long_weekends
  • list_holidays

Network hosts it talks to 1

  • holiday.omikuji.dev · found in remote endpoint, install command

Tools (4)

As the server listed them on Oct 25, 2026. Descriptions are the server’s own words; hidden characters are shown as [U+…].

  • business_daysBusiness daysread-only

    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). Business day = weekday that is not a national holiday. Set year_end_closed to also skip 12/29-1/3. With country, uses that country's weekend days, holidays and make-up workdays.

  • check_datesCheck datesread-only

    For each date, tell whether it is a Japanese national holiday (with name and kind: 祝日 / 振替休日 / 国民の休日), a weekend, and a business day. Also returns today in Japan time. With country, the same for that country (holiday names, status, make-up workdays such as China's 调休).

  • find_long_weekendsFind long weekendsread-only

    Find 連休 (3+ consecutive days off made of weekends and national holidays), e.g. Golden Week, Silver Week. Give a year, or from (default today) to list upcoming ones. With country, the same for that country.

  • list_holidaysList holidaysread-only

    List Japanese national holidays for a year, or between from and to. With no arguments, lists the next 10 holidays from today (Japan time). With country, lists that country's public holidays (and make-up workdays, if any).

Signals

Last release
Oct 15, 2026 (14 days ago)

Details

Registry name
dev.omikuji/holiday
Version
1.1.0
Auth
Auth not stated
License
License unknown
Website
holiday.omikuji.dev/ai/
First seen
Oct 24, 2026
Last checked
Oct 24, 2026
Source
Official MCP Registry

More from omikuji.dev

Cite this page

Japan & World Public Holidays MCP server. Agent Mart. https://agentmart.dev/connectors/omikuji-dev-holiday (last updated 2026-10-24)