IBAN Validator
Verify and parse International Bank Account Numbers with precision.
A robust tool for validating IBANs across multiple countries. It checks checksums, verifies country-specific formats, and extracts detailed banking information such as bank codes and account numbers.
How it works
Three steps. No complex setup.
Format Normalization
The service removes spaces and special characters from the input string to prepare it for validation.
Checksum Verification
It applies the MOD-97-10 algorithm to verify the check digits and ensure the IBAN is mathematically correct.
Structure Analysis
The tool validates the IBAN against country-specific length and character patterns to extract bank and account details.
Who is it for?
Response example
Real input and output. What you send and what you get back.
// Input
{
"iban": "DE89370400440532013000"
}// Output
{
"iban": "DE89370400440532013000",
"iban_formatted": "DE89 3704 0044 0532 0130 00",
"is_valid": true,
"country_code": "DE",
"country_name": "Germany",
"bank_code": "3704",
"account_number": "0044053201300",
"check_digits": "89",
"length": 22,
"expected_length": 22,
"error": null
}Try it now
// live demo — no account needed to try
Playground
Integrate into your project
Copy and paste. Replace YOUR_API_KEY with your real key.
curl -X POST https://jsnhengine.com/api/trpc/ibanValidator.validate \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_API_KEY" \
-d '{"json": {"iban":"DE89370400440532013000"}}'Why choose JSNH Engine Lab
Low latency
Responses in under 200ms
Secure authentication
API keys with per-plan rate limiting
Usage tracking
Every request logged with metrics
Production ready
Input validation and typed errors
Frequently asked questions
Everything you need to know before integrating.
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// production ready
Start using IBAN Validator
Sign up free and get 1,000 tokens to start. No credit card. No complex setup.