io.github.atushi1841/japan-business-calendar-mcp
Japan business day & holiday calculator MCP. Official holidays + business-day arithmetic, 6 tools.
MCP server · by atushi1841
About
io.github.atushi1841/japan-business-calendar-mcp is an MCP server published by atushi1841. Marketplaces we read that list it: 1 (Official MCP Registry). We first saw it on 2026-10-27 and have recorded no change since. As of our marketplace pass on 2026-11-06.
What it asks for
- Runs on your machine
None of the marketplaces we read publishes its tools or the settings it asks for.
What it declares, asks for and runs, in full
Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.
Works with
- Claude Code
- Codex
- Cursor
- VS Code
- Copilot CLI
From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.
Connect
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
Where it is published
| Marketplace | Status | Version | Figures | Verified | First seen |
|---|---|---|---|---|---|
| Official MCP Registry (Open the registry record) | Listed | 0.1.0 | Forks (GitHub): 0 Stars (GitHub): 0 |
Not marked |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
What changed
- Became a product we track
- Official MCP Registry: appeared
Similar plugins
Products whose own names, descriptions, tools and skills are closest in meaning to this one, on every marketplace we read. Closeness is ranked within this list only.
-
Japanese business days, holiday checks and invoice due dates for your AI agent.
-
mcp-jp-calendar io.github.skypier-jp-works/mcp-jp-calendar
MCP server for Japanese business days, holidays, and fiscal-period calculations.
-
Japanese holiday and business-day calculations using official Japan Cabinet Office data.
-
Australia Business Calendar MCP
Australian business days and holiday-aware due dates for your AI agent.
-
bizdays io.github.qinisolabs/bizdays
Verified business-day math for AI agents: holidays + per-country weekends, not guesses.
-
Public holidays and business-day math (T+N, counts) for many countries; pay per call via x402
-
Public holidays and working-day math for 200+ countries and regions, local weekends. No keys.
-
Canadian federal and provincial holidays, business-day maths and invoice due dates.
-
openworkdays io.github.SolvoHQ/openworkdays
Zero-signup business-day date-math API: add days, count days between dates, is-business-day.
-
Public holidays, business days and long weekends for about 250 countries, in each local time zone.
Similar plugins by marketplace
The same question asked of one marketplace at a time: is there an analog of this plugin there?
Has a listing on Claude Code: claude-plugins-community (5)
-
Connect Claude and other AI agents to Merit Aktiva — Estonia's most-used accounting software — and let them handle real bookkeeping safely. Six Claude Code skills that teach…
-
AI-native UK accounting for limited companies and sole traders. Track transactions, manage VAT, monitor HMRC deadlines, log expenses, and handle invoices through natural language…
-
Give Claude deep UK accounting knowledge. This plugin replaces the generic finance responses with regulation-aware workflows built specifically for British businesses. It covers…
-
Give Claude deep German accounting knowledge for GmbH, GbR, Einzelunternehmen, and Freiberufler. This plugin replaces the generic finance responses with regulation-aware workflows…
-
global-entry-appointment-scanner
Find open Global Entry and NEXUS appointment slots and get notified. Includes a skill that helps you search for slots, set up continuous background monitoring, configure…
Has a listing on Claude Code: claude-plugins-official (5)
-
QuickBooks business insights and actions: financial health briefings across P&L, cash flow, balance sheet and A/R, industry benchmarking, payroll cost analysis, overdue-invoice…
-
Bring Airwallex's global financial infrastructure to Claude. Orchestrate actions across your account in plain language, e.g., set up invoices from a PO, onboard suppliers from…
-
Guides AI assistants that use the NetSuite AI Connector: tool-selection order, output formatting, NetSuite domain knowledge, multi-subsidiary and currency handling, and SuiteQL…
-
Circleback conversational context integration. Search and access meetings, emails, calendar events, and more.
-
Ask Claude about the contractors you pay through Wingspan, what you owe them, and what is holding up a payment, then onboard contractors and log payments as drafts, with a preview…
Has a listing on Claude: knowledge-work-plugins (5)
-
Streamline finance and accounting workflows, from journal entries and reconciliation to financial statements and variance analysis. Speed up audit prep, month-end close, and…
-
QuickBooks business insights and actions: financial health briefings across P&L, cash flow, balance sheet and A/R, industry benchmarking, payroll cost analysis, overdue-invoice…
-
Bring Airwallex's global financial infrastructure to Claude. Orchestrate actions across your account in plain language, e.g., set up invoices from a PO, onboard suppliers from…
-
Guides AI assistants that use the NetSuite AI Connector: tool-selection order, output formatting, NetSuite domain knowledge, multi-subsidiary and currency handling, and SuiteQL…
-
Ask Claude about the contractors you pay through Wingspan, what you owe them, and what is holding up a payment, then onboard contractors and log payments as drafts, with a preview…
Has a listing on Codex: openai-curated (openai/plugins) (5)
-
Connect Google Calendar for scheduling, availability, daily briefs, and event management.
-
Connect Microsoft Outlook Calendar for scheduling, daily briefs, event prep, and safe meeting changes.
-
Turn Codex into your ClickUp command center.
-
The monday.com AI Connector brings core platform capabilities directly to agents and AI assistants. It supports searching boards, creating and updating items and columns…
-
Develop your payments integration faster with the ability to create products, prices, and payment links directly in ChatGPT. Run your business from ChatGPT with the ability to…
Has a listing on Community GitHub marketplaces (5)
-
Misc Jewish utility skills: shabbat candle-lighting/havdalah, zmanim (GR"A + MG"A), parsha-of-the-week, Hebrew/Gregorian date conversion (sunset-aware), upcoming holidays…
-
Check opening hours for Israeli businesses, including hours stated relative to Shabbat and yom tov. Combines Google Business and easy.co.il for stated hours with Hebcal…
-
Working in Japan: year-end tax adjustment (年末調整), the tax return (確定申告) with e-Tax, resignation procedures from notice to unemployment benefit, and the 稟議書 approval request, in…
-
Turn a natural-language date/time problem into correct, validated Tempo (Elixir) — ISO 8601 / IXDTF representation plus relations, set algebra, recurrence, scheduling, and…
-
Timezone conversion and time queries across IANA timezones
Has a listing on Copilot CLI: github/awesome-copilot (5)
-
Query Anarlog meetings locally, or connect through OAuth to read opted-in Cloud snapshots.
-
Mastercard Developers plugin to help build integrations with Mastercard APIs, including best practices and the Mastercard Developers MCP server.
-
Explore and query TimeBase streams, schemas, QQL, symbols, and server status via MCP.
-
See your local Copilot token usage by day, model, and session, and get tips to use it more efficiently.
-
Self-configuring status briefing generator. Learns your communication style from examples, discovers your data sources, and produces draft updates for any audience on demand.
Has a listing on Copilot CLI: github/copilot-plugins (5)
-
workiq-productivity
WorkIQ productivity skills powered by the local WorkIQ CLI — read-only insights across email, meetings, calendar, Teams, SharePoint, projects, and people.
-
workiq
Query Microsoft 365 data with natural language — emails, meetings, documents, Teams messages, and more.
-
Toolkit for building Microsoft 365 Copilot declarative agents — scaffolding, JSON manifest development, and capability configuration.
-
Build Power Apps Canvas Apps using the Canvas Authoring MCP server.
-
Bring Azure DevOps work-item, repository, and pull-request workflows into GitHub Copilot.
Has a listing on Cursor: cursor/plugins (5)
-
Look up workers, organizations, time off, payroll, and recruiting data in Workday.
-
Work with payroll, employees, contractors, time off, and reports.
-
Look up people, time off, and company policy in Rippling, and file time-off requests and draft hires.
-
Check availability and book, cancel, or reschedule.
-
Query expenses, travel bookings, policies, and cards.
Has a listing on Docker MCP Catalog (5)
-
Time and timezone conversion capabilities.
-
Tools for cross-border payments, taxes, and compliance.
-
Tools to interact with the Camunda 7 Community Edition Engine using the Model Context Protocol (MCP). Whether you're automating workflows, querying process instances, or…
-
HDX MCP Server provides access to humanitarian data through the Humanitarian Data Exchange (HDX) API - https://data.humdata.org/hapi. This server offers 33 specialized tools for…
-
Bridges n8n's workflow automation platform with AI models, providing access to 543 n8n nodes, workflow templates, and AI-capable automation tools.
Has a listing on Official MCP Registry (5)
-
Japanese business days, holiday checks and invoice due dates for your AI agent.
-
mcp-jp-calendar io.github.skypier-jp-works/mcp-jp-calendar
MCP server for Japanese business days, holidays, and fiscal-period calculations.
-
Japanese holiday and business-day calculations using official Japan Cabinet Office data.
-
Australia Business Calendar MCP
Australian business days and holiday-aware due dates for your AI agent.
-
bizdays io.github.qinisolabs/bizdays
Verified business-day math for AI agents: holidays + per-country weekends, not guesses.
Has a listing on PyPI (MCP servers) (5)
-
MCP server for retrieving Japanese stock market data via J-Quants API v2
-
Time and timezone conversion capabilities.
-
panchangam io.github.socraticsurge/panchangam
Telugu Panchangam: tithi, nakshatra, muhurtas, festivals, tarabalam, gochara, daily rasi phalalu
-
kra-mcp io.github.gabrielmahia/kra-mcp
Kenya tax tools: PAYE calculator (2026 rates), VAT, PIN, filing calendar, withholding. Estimates.
-
FinMind MCP server — Taiwan / global financial data for Claude, Gemini CLI, Cursor, Windsurf, and other MCP hosts
Has a listing on npm registry (MCP servers) (5)
-
NannyKeeper Household Payroll & Taxes
Calculate US household employer (nanny) taxes + run payroll via AI agents. All 50 states.
-
Calendar API for AI agents: events, availability, Google/Microsoft setup, scheduling, and iCal.
-
OpenFate Bazi MCP with True Solar Time, Four Pillars, Da Yun, and branch interactions.
-
workday-mcp io.github.chrischall/workday-mcp
Read-only Workday for Claude — fetch tasks, pay, benefits via your signed-in session
-
bls-labor-mcp-server io.github.cyanheads/bls-labor-mcp-server
Fetch US Bureau of Labor Statistics data — CPI, unemployment, wages, JOLTS, and more via MCP.
Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.
Want this mark on your plugin in our catalog?
Prove you maintain it with a file in its repository, a file on your domain or a DNS record, and you can show this mark on the card, with live banners for your site and README. How verification works
You also get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and its remote endpoint goes on monitoring as a web service.
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.