The Japan Business Day MCP server,
connected in one click.
Japan business days & holidays (official Cabinet Office data). Free tool + x402 USDC paid tools. Connect the official Japan Business Day MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Add Japan Business Day to your AI in one minute
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http japan-business-day https://japan-business-day-api.matchan962.workers.dev/mcpRun in your terminal, then restart Claude Code.
Japan Business Day · https://japan-business-day-api.matchan962.workers.dev/mcp
What your AI can do with Japan Business Day
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “is_business_day_free”: FREE: check whether a date between today and 90 days ahead (JST) is a business day in Japan. Official Cabinet Office holiday data, supports.”
“Use “is_business_day”: Check whether a date is a business day in Japan (official Cabinet Office holiday data). Returns holiday name (JA/EN) and next/previous busin.”
“Use “add_business_days”: Add or subtract N Japanese business days from a date (settlement T+N, delivery ETA). Price: $0.01 USDC via x402.”
“Use “list_holidays”: List Japanese national holidays for a year with JA/EN names. Price: $0.01 USDC via x402.”
How secure is the Japan Business Day MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Japan Business Day holds up.
Official endpoint
Operated by Japan Business Day (workers.dev) at its documented MCP endpoint — not a third-party mirror or community re-host.
No sign-in needed
This server only exposes public data — no account and no credentials are involved when you connect.
Scanned before it goes live
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
Watched for drift
If Japan Business Day adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Connected in three steps
Connect your gate
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Pick Japan Business Day
Choose Japan Business Day in the gate directory. No sign-in needed.
Use it anywhere
Japan Business Day's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
The actual tools Japan Business Day exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
is_business_day_free — FREE: check whether a date between today and 90 days ahead (JST) is a business day in Japan. Official Cabinet Office holiday data, supports
is_business_day — Check whether a date is a business day in Japan (official Cabinet Office holiday data). Returns holiday name (JA/EN) and next/previous busin
add_business_days — Add or subtract N Japanese business days from a date (settlement T+N, delivery ETA). Price: $0.01 USDC via x402.
list_holidays — List Japanese national holidays for a year with JA/EN names. Price: $0.01 USDC via x402.
payment_due_date — Japanese payment terms (shimebi/shiharaibi) calculator, e.g. month-end close paid end of next month; shifts to the previous/next business da
bank_value_date — When will a Japanese bank transfer be credited? Returns the value date under standard processing (same day before the cutoff, default 15:00
jpx_trading_day — 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
jpx_record_date — Japanese stocks: last cum-rights trading day and ex-rights date for a dividend/benefit record date (T+2 settlement, holiday-aware). Price: $
+ 3 more tools once connected
Who runs the Japan Business Day MCP server?
The Japan Business Day MCP server at a glance
https://japan-business-day-api.matchan962.workers.dev/mcpQuestions, answered
Is there an official Japan Business Day MCP server?
Yes — Japan Business Day operates its own remote MCP server at japan-business-day-api.matchan962.workers.dev. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
How do I connect Japan Business Day to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick Japan Business Day in the directory. No account or sign-in is needed. From then on, Japan Business Day's tools are available in every client you've connected to gate.
Do I need to host anything?
No. Japan Business Day runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the Japan Business Day MCP server safe to connect?
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Is it free?
Yes — you can get started with gate for free and connect Japan Business Day in minutes. No credit card required.
Connect more than just Japan Business Day
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up Japan Business Day in: Claude · Claude Code · ChatGPT · Cursor · VS Code
Give your AI Japan Business Day — safely.
One URL. All MCPs. Full control. Free to start.
Get started free