Japan Business Tools

Ingested from the official MCP Registry

FastDrop pulled this entry from the official MCP Registry as jp.ossalt/jp-biz-tools and probed the endpoint. The maker did not submit it, so the outbound link is not endorsed and the description is not theirs.

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Tools this endpoint exposes

Read directly from the endpoint on 6 Oct 2026. Not supplied by the maker.

• list_holidays

  List all Japanese national holidays and substitute holidays for a year, based on the National Holidays Act and verified against the Cabinet Office CSV. Each holiday has `name` (descriptive) and `offic

• check_business_day

  Check whether a date is a business day in Japan, and if not, why (weekend, holiday name, bank closure, or a custom closed day). / その日が営業日かどうかと、休みの理由（土日・祝日の名前・銀行の休業日・指定された休日）。

• add_business_days

  Return the date that is N business days after (or before, if N is negative) the given date. The start date itself is not counted; e.g. 1 business day after a Friday is the next Monday unless it is a h

• count_business_days

  Count business days from start to end, inclusive of both ends. Returns 0 if start is after end. The period can be up to 3,660 days (about 10 years). / start から end までの営業日の数（両端を含む）。start が end より後なら 0。

• adjust_to_business_day

  If the date is a business day, return it as is; otherwise move to the next ("next") or previous ("previous") business day. Useful for payment due dates that fall on holidays. / 営業日ならその日、休みなら次（next）または

• last_business_day_of_month

  Return the last business day of the given month. / その月の最終営業日。

• lookup_postal_code

  Look up the address (prefecture, city, town) for a 7-digit Japanese postal code, from Japan Post data. Accepts forms like 1000001, 100-0001 or 〒100-0001. One code can cover several towns; all are retu

• search_postal_code

  Find Japanese postal codes by prefecture, city and (optionally) part of the town name, from Japan Post data. The city must be the full municipality name (e.g. 札幌市中央区, 新宿区); the county name may be omit

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