IBAN Validation
Validate International Bank Account Numbers with format and checksum verification for 50+ countries.
Bank Validation API
Validate international bank accounts (IBAN) and BIC codes with comprehensive format checking. Perfect for payment systems, financial applications, and bank account verification.
API endpoint
GET https://bankvalidation.cleariflow.com/v1/iban/?api_key=YOUR_API_KEY&iban=DE89370400440532013000
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Test the API with live data
API benefits
BIC Support
Validate Business Identifier Codes with detailed bank and institution information and structure validation.
Global Coverage
Support for bank validation across Europe, Asia, Africa, and the Americas with country-specific rules.
Format Verification
Comprehensive format checking including country-specific structure validation and length verification.
Checksum Validation
Advanced checksum algorithms ensure data integrity and prevent errors with detailed validation results.
Lightning Fast
Sub-100ms response times with 99.9% uptime guarantee and global infrastructure.
Key features
- IBAN format validation
- BIC code validation
- 50+ countries supported
- Checksum verification
- Country-specific validation
- Account type detection
- Currency identification
- Structure validation
- Example generation
- Error detection
- Bulk validation
- JSON response format
Quick start guide
1. Get your API key
Sign up for free and get instant access to your API key.
2. Make your first request
cURL
curl -X GET \ "https://bankvalidation.cleariflow.com/v1/iban/" \ ?api_key=YOUR_API_KEY \ &iban=DE89370400440532013000
3. Handle the response
JSON
{
"account_number": "0532013000",
"bank_code": "37040044",
"checksum_valid": true,
"country_code": "DE",
"country_name": "Germany",
"details": {
"account_type": "Bank Account",
"bank_bic": "BIC not available",
"bank_name": "Bank information not available",
"currency": "EUR",
"example": "DE89 3704 0044 0532 0130 00",
"structure": "BBBB BBBB BBBB BBBB BB"
},
"expected_length": 22,
"format_valid": true,
"iban": "DE89370400440532013000",
"is_valid": true,
"length": 22
}
Free
Monthly
$0
100 requests/month
- REST API access
- Up to 1 requests/sec
- Core documentation
Standard
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$23
5,000 requests/month
- Everything in Free
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- Billed as shown in your account
Professional
Monthly
$66
20,000 requests/month
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- Up to 100 requests/sec
- Billed as shown in your account
Standard
Annually
$253
60,000 requests/year
- Everything in Free
- Up to 25 requests/sec
- Billed annually as shown in your account
Professional
Annually
$729
240,000 requests/year
- Everything in Free
- Up to 100 requests/sec
- Billed annually as shown in your account