x402 census · staging.402utils.com · 8de7d70ac32c · JSON
GET /v1/iban-check
unprobed
Validate an IBAN structurally before you pay or store it: ISO 7064 mod-97 check digits plus the official per-country length and BBAN layout (~90 countries), returning the bank/branch/account breakdown for FR, DE, ES, IT, BE and NL. Structural validation only — no BIC directory lookup (SWIFT's BIC registry is proprietary) and no proof the account exists. Local, instant. ?attest=1 → Ed25519-signed.
Verdict: not verified by an unpaid GET. not probed yet. This says nothing about whether the route works when called as declared.
Facts from the catalogs
| Field | Value |
|---|---|
| URL | https://staging.402utils.com/v1/iban-check |
| Method | GET |
| Price | $0.001 USDC = 1000 atomic units of 0x036CbD53842c5426634e7929541eC2318f3dCF7e |
| Network | eip155:84532 (base-sepolia) — testnet |
| payTo | 0xc55A2D530b53CBaD1001e4AfD4720B7E71f9C291 |
| Seller | staging.402utils.com |
| Catalogs | cdp (row updated 2026-09-22) |
| Listed since (lower bound) | 2026-09-22 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-22 |
| CDP quality counters | 1 calls and 1 unique payers in 30 days, last call 2026-09-22 (catalog-reported, not verified on chain) |
| Category (keyword rule) | identity/trust/kyc |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | none |
Unpaid probe (census of )
| Field | Value |
|---|---|
| Probe | not probed in this build |
No hourly re-probe has reached this resource yet; the cron covers a rotating slice of 150 per hour.
On-chain facts for the payTo (public address)
| Field | Value |
|---|---|
| Distinct payers | 43 |
| Payments | 69 |
| USDC volume | $0.17 |
| Median payment | $0.002 |
| First / last payment | 2026-07-05 / 2026-09-30 |
| Sampler-shaped share of payments | 100.0% |
| Payers that are not samplers | 0 |
| Source | forensics-2026-09-30 |
| Address | 0xc55A2D530b53CBaD1001e4AfD4720B7E71f9C291 (contract: EIP7702Proxy) |
Declared input and output (extensions.bazaar)
{
"input": {
"method": "GET",
"queryParams": {
"iban": "FR76 3000 6000 0112 3456 7890 189"
},
"type": "http"
},
"output": {
"type": "json",
"example": {
"accountNumber": "12345678901",
"bankCode": "30006",
"bban": "30006000011234567890189",
"branchCode": "00001",
"checkDigitsValid": true,
"country": "FR",
"formatValid": true,
"length": 27,
"valid": true
}
}
}
Try it (unpaid: shows the 402)
curl -si -X GET 'https://staging.402utils.com/v1/iban-check' -H 'accept: application/json'
The catalog declares GET. A 402 answer carries the payment requirements in the JSON body and, for x402 v2, base64 in the PAYMENT-REQUIRED header. This page never sends a payment.
Paid checks (x402, USDC on Base)
GET https://bazaar.agentexchange.work/r/8de7d70ac32c/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"8de7d70ac32c"} places this resource at the top of the report and search pages for 30 days for $1.00, labelled. Unpaid requests answer 402 with the terms. Pricing.
Catalog references: agentic.market (CDP Bazaar front end) · this record as JSON · all resources on staging.402utils.com.