validate?iban=DE89370400440532013000

Validate any IBAN offline — mod-97 check digits, per-country structure, bank/branch extraction, and pretty formatting for ~80 countries — deterministic, instant, no upstream.

Validate any IBAN offline — mod-97 check digits, per-country structure, bank/branch extraction, and pretty formatting for ~80 countries — deterministic, instant, no upstream. A structurally invalid IBAN is a real answer: valid:false + findings naming exactly what failed. Pass iban as ?iban= (GET) or a JSON body (POST).

UNRATEDListed

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.005 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0xdadc3354…fcbeb9df

URL

https://netintel.dev/iban/validate?iban=DE89370400440532013000

Seen

first 35 days ago · last 17 hr ago

64 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC, Solana

Listed on?

Base, Solana

Score, from free handshakes onlyweights 2026.09.6

UN
RATED

0.735 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held down by latency p95 · gap to 1.000 is 0.265: 0.076 uncertain ? + 0.189 short ? · 0.065 to B

How the composite of 0.735 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
latency p95costs the most it answered as fast as its class	0.20	0.06	0.005		0.001	−0.189	−0.010
liveness it answered at all	0.60	1.00	0.890		0.534	0	−0.066
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.735	gap to 1.000 = 0.265 · 0.189 short · 0.076 uncertain	0.735	−0.189	−0.076

Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check

The multiplication, written out

  0.200 × 0.005   latency p95    
+ 0.600 × 0.890   liveness       
+ 0.200 × 1.000   price stability
= 0.735           → UNRATED: 56 of 30 paid calls      weights 2026.09.6 · 56 samples · seed cap_01M1A59S31Z2J1RD8QAQGZY74A|2026-09-03T19:06:19.953Z|2026.09.6

Verify it yourselfnpx teppi-check https://netintel.dev/iban/validate?iban=DE89370400440532013000curl -s https://api.teppi.xyz/v1/trust/cap_01M1A59S31Z2J1RD8QAQGZY74A