Japan Business Tools MCP Tools

• list_holidays Read-only

  list holidays

• check_business_day Read-only

  check business day

• add_business_days Mutating

  add business days

• count_business_days Read-only

  count business days

• adjust_to_business_day

  adjust to business day

• last_business_day_of_month

  last business day of month

• lookup_postal_code Read-only

  lookup postal code

• search_postal_code Read-only

  search postal code

• normalize_address

  normalize address

• lookup_corporate_number Read-only

  lookup corporate number

• search_corporation_by_name Read-only

  search corporation by name

This list was read from the server itself, by connecting to it and calling tools/list on 7 October 2026. It is what the server actually exposes, not what its listing claims.

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.