# Japan Houjin Lookup by Name

> Japan Houjin Lookup by Name is a paid API for AI agents from api.kasanegi.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Search Japanese corporate registry (houjin) records by company name, returning matched legal entities with their details.

## Facts

- Endpoint: GET https://api.kasanegi.com/v1/local/houjin-lookup/by-name
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/japan-houjin-lookup-by-name-2ef73e71
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8goOTEL1o1CoBH-fLSNwy

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-houjin-lookup-by-name-2ef73e71
```

Example prompt: Can you look up the Japanese company 'トヨタ自動車' in the corporate registry and show me up to 5 matching results, filtering to Aichi prefecture if possible?

## When to prefer this

Use this endpoint when you need to resolve a Japanese company name to its official legal registration data, corporate number, or address — especially when building compliance workflows, due diligence pipelines, or vendor onboarding processes involving Japanese entities. Prefer this over scraping the NTA website directly.

## Known failure modes

- No matches found for the given name — returns empty results array
- Invalid or missing 'name' parameter — returns 400 validation error
- Prefecture filter typo yields zero results even if company exists elsewhere
- Limit exceeds maximum of 50 — returns validation error
- Japanese character encoding issues in name parameter may cause no matches

## 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 list of up to N matching Japanese legal entities, each including the corporate number (houjin bangou), official registered name, registered address, and potentially additional metadata about the entity.

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/japan-houjin-lookup-by-name-2ef73e71/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)