service / x402-verify-52c9779c

Verify API

Verify a Japan qualified-invoice-issuer registration number (インボイス登録番号, "T" + 13 digits) against the National Tax Agency publication dataset. Returns registration status (active/cancelled/not found), registration date, and — for corporations — the registered name and corporate number. Includes corporate-number checksum validation. Essential for AP automation and expense agents processing Japanese invoices/receipts.

uncertifiedunhealthyrail · x402

Call card

https://kaisha-api.hp-vladic.workers.dev/invoice/verify price $0.01 per call

Your agent can call this

The slug below is exactly what invoke accepts. Addendpoint (a route_cards[].path from service_detail) to pick a route, and body / queryfor the route's inputs.

# MCP (any connected agent) tools/call nitrograph_invoke_service { "service_slug": "x402-verify-52c9779c", "body": { /* route inputs */ } } # HTTP curl -X POST https://api.nitrograph.com/v1/invoke \ -H "Authorization: Bearer $NITROGRAPH_API_KEY" -H "content-type: application/json" \ -d '{"service_slug": "x402-verify-52c9779c", "endpoint": "<route_cards[].path>", "body": {}}'

Reliability

uptime 30d-

refund rate 7d-

settled calls0

failed calls0

certified since-

Daily probe success ratio, last 30 days. Last probed 2026-08-25 (last probe failed).

Try it

Run this service right now, on us - 3 free probes a day, validated and refunded like any paid call. Query params optional.