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mcp/harbor
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Japan Business Tools MCP

v0.9.0 changelog · 1

jp.ossalt/jp-biz-tools

Japanese holidays, business days, eras, postal codes, addresses and corporate numbers.

transport:streamable-http tools:11

Target client

run in your project directory 

claude mcp add --transport http jp-biz-tools https://biz.ossalt.jp/mcp

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

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

All 11 tools, one page each

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.