MCP server

Japan Business Day

io.github.Rira365/japan-business-day

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Japan business days & holidays (official Cabinet Office data). Free tool + x402 USDC paid tools.

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

11

Token cost

About 1,927 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http japan-business-day https://japan-business-day-api.matchan962.workers.dev/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.japan-business-day]
url = "https://japan-business-day-api.matchan962.workers.dev/mcp"

Gemini CLI

{"mcpServers":{"japan-business-day":{"httpUrl":"https://japan-business-day-api.matchan962.workers.dev/mcp"}}}

Cursor

{"mcpServers":{"japan-business-day":{"url":"https://japan-business-day-api.matchan962.workers.dev/mcp"}}}

VS Code

{"servers":{"japan-business-day":{"type":"http","url":"https://japan-business-day-api.matchan962.workers.dev/mcp"}}}

Antigravity

agy mcp add japan-business-day https://japan-business-day-api.matchan962.workers.dev/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"japan-business-day","server_url":"https://japan-business-day-api.matchan962.workers.dev/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"japan-business-day","server_url":"https://japan-business-day-api.matchan962.workers.dev/mcp"}

Tools

• add_business_days ~180 tokens
  Add or subtract N Japanese business days from a date (settlement T+N, delivery ETA). Price: $0.01 USDC via x402.
• bank_value_date ~196 tokens
  When will a Japanese bank transfer be credited? Returns the value date under standard processing (same day before the cutoff, default 15:00 JST, on a bank business day; otherwise next bank business day). Price: $0.01 USDC via x402.
• find_lucky_days_japan ~207 tokens
  Find auspicious Japanese dates: days in a range matching rokuyo (e.g. taian) and optional weekdays (e.g. sat,sun) for weddings, moving, contracts. Price: $0.01 USDC via x402.
• is_business_day ~181 tokens
  Check whether a date is a business day in Japan (official Cabinet Office holiday data). Returns holiday name (JA/EN) and next/previous business day. Price: $0.005 USDC via x402.
• is_business_day_free ~203 tokens
  FREE: check whether a date between today and 90 days ahead (JST) is a business day in Japan. Official Cabinet Office holiday data, supports bank calendar (Dec 31 - Jan 3). For other dates, business-day arithmetic or holiday lists use the paid tools.
• japanese_koyomi ~118 tokens
  Japanese traditional calendar for a date: rokuyo (taian/butsumetsu lucky days), Reiwa era date, lunisolar date, 24 solar terms. Price: $0.005 USDC via x402.
• jpx_record_date ~128 tokens
  Japanese stocks: last cum-rights trading day and ex-rights date for a dividend/benefit record date (T+2 settlement, holiday-aware). Price: $0.01 USDC via x402.
• jpx_sq_date ~114 tokens
  Nikkei 225 futures/options SQ day and last trading day for a contract month (2nd Friday, moved earlier on holidays). Price: $0.01 USDC via x402.
• jpx_trading_day ~124 tokens
  Is the Tokyo Stock Exchange (JPX) open on a date? Next/previous trading day, first/last trading day of the year. Price: $0.005 USDC via x402.
• list_holidays ~134 tokens
  List Japanese national holidays for a year with JA/EN names. Price: $0.01 USDC via x402.
• payment_due_date ~342 tokens
  Japanese payment terms (shimebi/shiharaibi) calculator, e.g. month-end close paid end of next month; shifts to the previous/next business day on weekends/holidays. Price: $0.01 USDC via x402.

Browse

• GitHub tools
• Calendars
• Payments
• GitHub and code hosting

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