Japan Company Search & Corporate Number MCP

Search Japanese companies by English or Japanese name, or look up a 13-digit corporate number (法人番号, houjin bangou).

The MCP connection is provided by The Company Atlas. This repository does not run a separate server.

Connect

https://thecompanyatlas.com/mcp/company/japan

Add this URL as a custom MCP connector in Claude, ChatGPT, Cursor, or any MCP-compatible client. Sign in with Google when prompted.

• Transport: Streamable HTTP
• Auth: Google OAuth (sign in once, stays authorized)
• Free accounts get 50 credits per calendar month

Japan data coverage

• Company ids are JP + the 13-digit corporate number
• English and Japanese company names

Example prompts

• "Look up this Japanese corporate number"
• "Find the corporate number of this Osaka trading company"
• "Search Japanese companies with 'Shoji' in the name"

Tools

Tool	Description
Japan_search_companies	Search companies in the Japan registry by name or id
Japan_get_company	Full company profile by id (the JP prefix is optional)

日本語

AI アシスタントで日本の法人情報を検索できます。商号（日本語・英語）または 13 桁の法人番号で法人を検索できます。

質問の例

• "この法人番号の会社を調べて"
• "大阪のこの商社の法人番号は？"
• "「商事」を含む会社を探して"

Keywords

法人番号, 法人番号検索, 会社検索, houjin bangou, Japan corporate number lookup, Japanese company search