`jp_company_search`

Pack: japan-corporate-number · Connect: https://pipeworx.io/mcp (see Connect below for a single-pack URL)

No MCP client? Call it directly: GET https://gateway.pipeworx.io/v1/tools/jp_company_search for the schema, then POST the same URL with its arguments for the data.

Search Japan’s NTA corporate-number register by Japanese or romanised company name.

Tool description as the model sees it

Search Japan’s National Tax Agency corporate-number register by name — Japanese (kanji/katakana, substring match; 株式会社/(株)/㈱/有限会社/合同会社 accepted as prefix or suffix), the official English name/katakana reading NTA holds for some entities, or the English name GLEIF holds for entities with an LEI (“Sony Group”, “Toyota Motor Corporation”). Optionally filter by prefecture (Japanese name, English name, or 2-digit code). Returns each match’s corporate number, name, kind and address so you can pick the right one, then call jp_corporate_number for full detail. Covers 5.8M registered entities: companies, government bodies, NPOs, foundations.

Parameters

Name	Type	Required	Description
`name`	string	yes	Company/organization name or part of it, in Japanese or (when NTA published one) English — e.g. “トヨタ”, “Toyota”, “株式会社”.
`prefecture`	string	no	Optional prefecture filter: Japanese name (“北海道”), English name (“Hokkaido”), or 2-digit code (“01”).
`limit`	number	no	Maximum results (1-50, default 10).

Example call

Arguments

{
  "name": "釧路",
  "prefecture": "Hokkaido",
  "limit": 5
}

curl

curl -X POST https://gateway.pipeworx.io/japan-corporate-number/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"jp_company_search","arguments":{"name":"釧路","prefecture":"Hokkaido","limit":5}}}'

TypeScript (@pipeworx/sdk)

import { Pipeworx } from '@pipeworx/sdk';
const pipeworx = new Pipeworx();

const result = await pipeworx.call('jp_company_search', {
  "name": "釧路",
  "prefecture": "Hokkaido",
  "limit": 5
});

More examples

{
  "name": "(株)シャープ",
  "limit": 3
}

{
  "name": "シャープ",
  "prefecture": "大阪府",
  "limit": 3
}

{
  "name": "Sony Group",
  "limit": 3
}

{
  "name": "Toyota Motor Corporation",
  "limit": 3
}

Connect

Add this to your MCP client config — every tool in the catalog, including this one — or use one-click install buttons:

{
  "mcpServers": {
    "pipeworx": {
      "url": "https://pipeworx.io/mcp"
    }
  }
}

Connect to just the japan-corporate-number pack

{
  "mcpServers": {
    "japan-corporate-number": {
      "url": "https://gateway.pipeworx.io/japan-corporate-number/mcp"
    }
  }
}

See Getting Started for client-specific install steps.

jp_company_search