iban?iban=DE89370400440532013000

Validate an International Bank Account Number (IBAN) with full ISO 13616 checks: country-specific length and the ISO 7064 mod-97 checksum (not just a regex).

Validate an International Bank Account Number (IBAN) with full ISO 13616 checks: country-specific length and the ISO 7064 mod-97 checksum (not just a regex). Returns {valid, iban (normalized), formatted (4-char groups), countryCode, checkDigits, bban, reason}. Catches transposed digits and wrong-length accounts that a format check misses, and returns the canonical form so a glue/ETL pipeline can validate AND normalize bank details in one deterministic call. ~85 countries. No bank directory lookup — structure + checksum only.

UNRATEDListed

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.0025 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0x2b6d4988…51fc32c5

URL

https://2s.io/api/validate/iban?iban=DE89370400440532013000

Seen

first 29 days ago · last 1 day ago

54 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

0.730 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held down by latency p95 · gap to 1.000 is 0.270: 0.074 uncertain ? + 0.196 short ? · 0.070 to B

How the composite of 0.730 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	0.02	0.000		0.000	−0.196	−0.004
liveness it answered at all	0.60	1.00	0.884		0.530	0	−0.070
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.730	gap to 1.000 = 0.270 · 0.196 short · 0.074 uncertain	0.730	−0.196	−0.074

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

The multiplication, written out

  0.200 × 0.000   latency p95    
+ 0.600 × 0.884   liveness       
+ 0.200 × 1.000   price stability
= 0.730           → UNRATED: 53 of 30 paid calls      weights 2026.09.6 · 53 samples · seed cap_01M1RDABAXERTA8BNXGFG09HE3|2026-09-03T10:11:11.115Z|2026.09.6

Verify it yourselfnpx teppi-check https://2s.io/api/validate/iban?iban=DE89370400440532013000curl -s https://api.teppi.xyz/v1/trust/cap_01M1RDABAXERTA8BNXGFG09HE3