Mmcp.market

Japan Business Day MCP server

by Rira365·io.github.Rira365/japan-business-day·v1.0.0
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Japan business days & holidays (official Cabinet Office data). Free tool + x402 USDC paid tools.

C67/100grade C
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Safety scan
C67/100

full report

Adoption
New

Little public usage data yet

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If you have run it, two minutes of your experience saves the next person an afternoon.

Japan Business Day tools (5)

write = sends, deletes, buys or posts
  • add_business_daysFree

    Add or subtract N Japanese business days from a date (settlement T+N, delivery ETA). Price: $0.01 USDC via x402.

  • is_business_dayFree

    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_freeFree

    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.

  • list_holidaysFree

    List Japanese national holidays for a year with JA/EN names. Price: $0.01 USDC via x402.

  • payment_due_dateFree

    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.

Public scan report

scanner v0.1.9 · 2026-09-26 · same rubric, same numbers if you re-run it

1 low
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 874ms20/20
  • Tool poisoning5 tool descriptions checked15/15
  • Auth qualityopen endpoint, read-only tools10/15
  • Maintenanceno repository listed3/15
  • Maintainer identityno repository or website to verify2/10

Findings (1)

  • lowNo source repository listedmaint.no-repo
Overall 67/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

Install directly

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

Japan Business Day: common questions

Is Japan Business Day MCP server safe?
With care: it is graded C, so read the findings first (67/100). Read the Japan Business Day safety report
How do I install Japan Business Day?
It runs remotely at japan-business-day-api.matchan962.workers.dev. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Japan Business Day need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Japan Business Day maintained?
The latest release is v1.0.0.
Is Japan Business Day up?
100% of our last 5 checks got an answer. We check remote servers about four times a day.

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