Endpoint · computeGETstaging.402utils.com /v1/iban-check ?iban=FR76+3000+6000+0112+3456+7890+189
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…
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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.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.001 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://staging.402utils.com/v1/iban-check?iban=FR76+3000+6000+0112+3456+7890+189
Seen
first 11 days ago · last 18 hr ago
14 free handshakes
Payment
Pays through
x402
Offered on?
Base Sepolia USDC
Listed on?
Base Sepolia
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.200 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by liveness · gap to 1.000 is 0.800: 0.290 uncertain ? + 0.510 short ? · 0.250 to D
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| livenesscosts the most it answered at all |
0.60 | 0.48 | 0.000 | 0.000 | −0.310 | −0.290 | |
| latency p95 it answered as fast as its class |
0.20 | 0.00 | 0.000 | 0.000 | −0.200 | 0 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.200 | gap to 1.000 = 0.800 · 0.510 short · 0.290 uncertain | 0.200 | −0.510 | −0.290 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.600 × 0.000 liveness
+ 0.200 × 0.000 latency p95
+ 0.200 × 1.000 price stability
= 0.200 → UNRATED: 14 of 30 paid calls weights 2026.09.6 · 14 samples · seed cap_01M36CNNF3NNP3JEGK6ZNJSN4W|2026-09-04T07:41:48.926Z|2026.09.6
Verify it yourself
npx teppi-check https://staging.402utils.com/v1/iban-check?iban=FR76+3000+6000+0112+3456+7890+189curl -s https://api.teppi.xyz/v1/trust/cap_01M36CNNF3NNP3JEGK6ZNJSN4W