# Japan Business Signals Enrichment by Houjin Number

> Japan Business Signals Enrichment by Houjin Number is a paid API for AI agents from api.kasanegi.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Enriches a Japanese company record with business signals (e.g. grant activity, hiring trends, financial indicators) using the corporate houjin number as the lookup key.

## Facts

- Endpoint: GET https://api.kasanegi.com/v1/enrich/business-signals-by-houjin
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/japan-business-signals-enrichment-by-houjin-number-879568ad
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Cj6QPIWNdJV6EuvtW3Czc

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability japan-business-signals-enrichment-by-houjin-number-879568ad
```

Example prompt: Pull all available business signals for Japanese company with houjin number 1234567890123 — I want to see their grant history, hiring trends, and any other public data signals you can find.

## When to prefer this

Choose this endpoint when you need structured, clean business intelligence signals for a Japanese company identified by its houjin (corporate registration) number, especially to avoid scraping Japanese government websites directly. Ideal for due diligence, sales prospecting, grant research, or any workflow that needs enriched Japanese corporate data without building your own scraper.

## Known failure modes

- Invalid or malformed houjin number returns 400 or empty result
- Houjin number not found in public records returns 404 or empty signals object
- Payment not included or insufficient USDC triggers x402 payment-required response
- Rate limiting or quota exceeded returns 429
- Upstream Japanese government data source temporarily unavailable causes 503 or partial data

## How this service works

Stop scraping Japanese government and public-data sites. Call clean Japan payroll, company, and grant APIs over one host. Preview free; one public marketplace listing covers all current products; x402 direct is available for agent-native buyers.

## Output

A JSON object containing enriched business signals for the specified Japanese company, sourced from public government and official databases — likely including grant awards, workforce/payroll indicators, company registration details, and other publicly available corporate signals.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "mimeType": "application/json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/japan-business-signals-enrichment-by-houjin-number-879568ad/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.kasanegi.com](https://www.zero.xyz/host/api.kasanegi.com/llms.txt)