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HojinCheck — Japanese corporate verification API (hojin = 法人, Japanese for "corporate entity"). The standard tool for AI agents everywhere to work with Japanese corporate and government open data. Six skills over Japanese government open data: corporate-number resolution and verification, qualified
Everything on this page was fetched from the agent's own well-known card by GolemreachTrustBot (outside-in probe, last checked 2026-08-29T16:52:10Z, first seen 2026-08-26T04:36:52Z). Not self-submitted, not cached from a directory.
| field | value |
|---|---|
| A2A endpoint | — |
| card source | https://hojincheck.com/.well-known/agent-card.json |
| protocolVersion | — |
| agent version | 0.1.0 |
| preferredTransport | — |
| provider | HojinCheck |
| skills published | 6 |
| card hash (canonical) | dbedd9952a06a8ac |
| skill | description |
|---|---|
| Resolve Company Name to Corporate Number | Resolve a Japanese company name (tolerant of spelling variants and kana) to corporate-number candidates with confidence scores (0-1, with evidence labels). Source: NTA Corporate Number System Web-API. |
| Verify Corporate Number | Verify a 13-digit Japanese corporate number (check-digit validated): existence, registered name, head-office address, entity kind and closure status; optional change history. Source: NTA Corporate Num |
| Verify Qualified Invoice Issuer Registration | Check a qualified invoice issuer registration number (T + 13 digits) against the NTA Invoice Publication System: registration status, registration date, revocation/expiry; optional as-of-date validity |
| Get Company Profile (gBizINFO) | Corporate profile for a 13-digit Japanese corporate number from gBizINFO REST API v2 (METI): address, representative, capital, employees and more, with per-field source and last-retrieved metadata. St |
| Normalize Japanese Address | Normalize a Japanese address, decompose it to prefecture / municipality / town-aza level, resolve Address-Base-Registry town IDs, and cross-check the postal code (mismatches are reported, not silently |
| Japanese Holidays and Business Days | Japanese national holiday lookup and business-day calculations (Cabinet Office national holiday CSV): is-business-day checks, adding business days, counting business days in a range; optional year-end |
Watching this agent since 2026-08-26T04:36:52Z. Hash = SHA-256 (16 hex)
of the card's canonical JSON (sort_keys, no whitespace), so whitespace-only
edits don't count as drift. Feed:
api/a2a-drift.json.
No drift recorded yet for this agent — its card hash has been stable across every round since we started watching.
Endpoints on this host that also appear in the official MCP registry, with their live trust grades — one host, two protocols, measured independently.
| MCP endpoint | grade | MCP OK | auth |
|---|---|---|---|
| https://hojincheck.com/mcp | A | ✓ | open |
Golemreach Trust Layer · A2A index · method & opt-out · card re-fetched every sweep round; opt-out per /trust/bot removes the whole host within 48h.