api.jpverify.com
| Availability (valid 402 returned) | 87.1% of 62 probes · single vantage |
| Median 402 handshake | 736ms |
| p90 handshake | 799ms |
| Catalog price (advertised) | $0.05 |
| Live price (median demanded) | $0.05 |
| Price status | match |
| Protocol | x402 v2 |
| Category (our classification) | commerce-payments |
| Payment receiver | 0xe4A4…572F · stable since Jul 12 |
| Base USDC inflow to this receiver wallet (30d, all sources — not just x402) | shared receiver wallet — total inflow is not attributable to this domain alone |
| Discovery (.well-known/x402) | present |
| Catalog volume (their metric) | 2 calls/30d |
listed products (catalog path · advertised price · live price we measured)
| /jp-address/normalize | $0.005 | $0.005 (matches) |
| /jp-business-card/extract | $0.03 | $0.03 (matches) |
| /jp-business-card/extract-and-enrich | $0.1 | $0.1 (matches) |
| /jp-company/report | $0.05 | $0.05 (matches) |
| /jp-company/verify | $0.005 | $0.005 (matches) |
| /jp-invoice/check | $0.03 | $0.03 (matches) |
| /jp-invoice/extract-and-verify | $0.05 | $0.05 (matches) |
| /jp-invoice/verify | $0.01 | $0.01 (matches) |
| /jp-receipt/extract | $0.03 | $0.03 (matches) |
| /jp-company/verify-batch | $0.05 | not yet probed |
and 2 more listed paths
grade evidence: hourly probes of /jp-invoice/verify-batch. Availability, latency and protocol measure the operator's shared infrastructure and generalize across its products; the price check applies to the probed product. We now also probe one other product per hour, rotating; "live price we measured" shows what each answered.
event log (from our catalog snapshots and probes)
| 2026-08-17 05:34 | price changed $0.03 → $0.05 |
| 2026-08-16 17:35 | price changed $0.05 → $0.03 |
Batch Japanese qualified-invoice verification / 適格請求書登録番号一括検証: verify up to 10 T+13 digit invoice registration numbers against Japan's NTA registry for accounting and AP workflows. / 最大10件のT+13桁インボイス登録番号を国税庁データと照合し、会計・買掛金処理に利用できます。
<a href="https://x402register.com/s/api.jpverify.com.html"><img src="https://x402register.com/badge/api.jpverify.com.svg" alt="x402 register grade C"></a>
What this grade does and doesn't measure: it scores the paid-request handshake — whether the service returns a spec-valid 402 payment challenge, how fast, and whether its price is honest. We do not pay these endpoints yet, so we do not verify that the paid response returns correct or complete content. Availability is a probe success rate measured hourly, from a single network vantage for this service.
Operator of api.jpverify.com? Dispute this rating. Scores are opinions based on automated measurements at the stated times.