Japanese Company Data

Look up a Japanese company in the National Tax Agency's corporate number system by its 13-digit number or name.

Pay by wallet (x402) AI-generated Japan: all company records japanese-company-data

Example

Input

{
  "corporate_number": "1180301018771"
}

Answer

{
  "status": "active",
  "address": "愛知県豊田市トヨタ町１番地",
  "furigana": "トヨタジドウシャ",
  "industry": null,
  "directors": null,
  "close_date": null,
  "attribution": "このサービスは、国税庁法人番号システムWeb-API 機能を利用して取得した情報をもとに作成しているが、サービスの内容は国税庁によって保証されたものではない\n国税庁法人番号公表サイト（国税庁）（https://www.houjin-bangou.nta.go.jp/）をもとにStraleが加工して作成。",
  "postal_code": "4710826",
  "close_reason": null,
  "company_name": "トヨタ自動車株式会社",
  "english_name": null,
  "last_updated": "2019-04-23",
  "process_code": "71",
  "business_type": "株式会社",
  "assignment_date": "2015-10-05",
  "search_excluded": false,
  "close_reason_code": null,
  "registration_date": null,
  "process_description": "吸収合併",
  "registration_number": "1180301018771",
  "successor_corporate_number": null
}

Inputs

Field	Type	Required	What it is
`task`	string	No	Corporate number or literal registered company name; natural-language requests are not resolved.
`company_name`	string	No	Registered Japanese or English company name. It resolves only when it matches one open, current company's full registered name; otherwise provide the corporate number.
`corporate_number`	string	No	13-digit corporate number with valid NTA check digit, or registered company name

Output fields

How reliably each field appears in a successful answer.

Field	Type	Appears
`status`	one of active, inactive, dissolved, closed, unknown	Always (present in every successful answer)
`address`	string or null	Usually (present for most inputs)
`furigana`	string or null	Usually (present for most inputs)
`industry`	string or null	Sometimes (present only for some inputs)
`directors`	string or null	Sometimes (present only for some inputs)
`close_date`	string or null	Sometimes (present only for some inputs)
`attribution`	string	Always (present in every successful answer)
`postal_code`	string or null	Usually (present for most inputs)
`close_reason`	string or null	Sometimes (present only for some inputs)
`company_name`	string or null	Usually (present for most inputs)
`english_name`	string or null	Usually (present for most inputs)
`last_updated`	string or null	Usually (present for most inputs)
`process_code`	string or null	Usually (present for most inputs)
`business_type`	string or null	Usually (present for most inputs)
`assignment_date`	string or null	Usually (present for most inputs)
`search_excluded`	boolean or null	Usually (present for most inputs)
`close_reason_code`	string or null	Sometimes (present only for some inputs)
`registration_date`	string or null	Sometimes (present only for some inputs)
`process_description`	string or null	Usually (present for most inputs)
`registration_number`	string	Always (present in every successful answer)
`successor_corporate_number`	string or null	Sometimes (present only for some inputs)

How to call it

The same tool through each route. MCP clients reach it through Strale’s server at https://api.strale.io/mcp; the call below is what the agent sends.

# Needs an API key. max_price_cents caps what this call may cost.
curl -X POST https://api.strale.io/v1/do \
  -H "Authorization: Bearer $STRALE_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
    "capability_slug": "japanese-company-data",
    "inputs": {
      "corporate_number": "1180301018771"
    },
    "max_price_cents": 80
  }'

{
  "tool": "strale_execute",
  "arguments": {
    "slug": "japanese-company-data",
    "inputs": {
      "corporate_number": "1180301018771"
    },
    "max_price_cents": 80
  }
}

import { Strale } from "straleio";

const strale = new Strale({ apiKey: process.env.STRALE_API_KEY! });
const result = await strale.do({
  capability_slug: "japanese-company-data",
  inputs: {
    "corporate_number": "1180301018771"
  },
  max_price_cents: 80,
});

import os
from straleio import Strale, DoRequest

strale = Strale(api_key=os.environ["STRALE_API_KEY"])
result = strale.do(DoRequest(
    capability_slug="japanese-company-data",
    inputs={
        "corporate_number": "1180301018771",
    },
    max_price_cents=80,
))

# No account. The first request answers 402 with the price in USDC;
# an x402 client pays it from your wallet and repeats the request.
curl -i 'https://api.strale.io/x402/v2/japanese-company-data?corporate_number=1180301018771'

Limitations

Corporate-number register coverage
Covers all entities assigned a Japanese corporate number, including non-company organisations. Officers, financial statements and industry data are not provided. The number-assignment date is not an incorporation date.
Names and addresses follow the register
Japanese and registered English names are supported. English names are optional. A name resolves only when it matches one open, current company's full registered name; partial names, several matches, and closed or historical companies need the corporate number. Names or address characters supplied only as image references may be incomplete; search-excluded records can contain obsolete addresses. Number withdrawal records can omit the name.
Registry status is not a trading or insolvency assessment
Closure and restoration follow NTA process codes and closure reasons. A registrar closure does not establish dissolution. An open record does not establish trading activity or absence of insolvency.
Official data reuse and attribution
NTA API Article 7 incorporates the content terms and Public Data License 1.0, permitting commercial reuse and redistribution with attribution and processing disclosure. Responses include the Article 6 disclaimer. Terms: https://www.houjin-bangou.nta.go.jp/webapi/riyokiyaku.html and https://www.houjin-bangou.nta.go.jp/riyokiyaku/ (read 2026-10-27). Heavy bursts are prohibited; access restrictions are honoured without retries.
Qualified invoice issuer status is not included
Corporate numbers do not establish T-number invoice registration. That check requires the separate qualified-invoice-system application ID and API.