Validation · API

IBAN Validation

Validate an IBAN and return the bank, BIC and branch.

POST /v1/validate/iban

200 OK

{
  "iban": "DE89370400440532013000",
  "valid": true,
  "bank": "Commerzbank",
  "bic": "COBADEFFXXX"
}

Capabilities

Why teams use it

Structure & checksum

Validate format and the IBAN check digits.

Bank & BIC

Resolve the bank and BIC from the IBAN.

70+ countries

IBAN coverage across supported regions.

Payout-ready

Catch typos before you send money.

Request

Call it in your language

curl -X POST https://api.locanium.com/v1/validate/iban \
  -H "Authorization: Bearer sk_live_..." \
  -H "Content-Type: application/json" \
  -d '{"iban":"DE89370400440532013000"}'

Response

What you get back

validboolean
Whether the IBAN is valid
country_codestring
ISO country code
bankstring
Bank name
bicstring
BIC / SWIFT code
branchstring
Branch

Use cases

What you can build

Payouts

Validate bank details before you send money.

Onboarding

Catch account-number typos instantly.

Reconciliation

Resolve bank and BIC from an IBAN.

Validation family

Email Validation Phone Validation VAT Validation

Full parameters, errors and code samples are in the API reference.