Developer Blog
PayeeValidate Engineering & Tutorials
Practical guides on robust IBAN validation, payment error prevention, and European fintech infrastructure.
IBAN Validation API
High-performance global IBAN validation API with MOD-97 checks and German bank data.
Online IBAN Checker
Free online tool to check and validate IBAN numbers instantly.
What is an IBAN?
Comprehensive guide to International Bank Account Numbers and payment routing.
How Validation Works
Technical deep dive into ISO 7064 MOD-97 checksums and format rules.
IBAN Structure
Complete breakdown of country codes, check digits, and BBAN formats.
BIC from IBAN
How to extract and lookup SWIFT/BIC codes for international and SEPA transfers.
SEPA IBAN Validation
Ensure SEPA compliance and eliminate Eurozone payment rejections.
Use Cases
SEPA Payouts
Prevent bounced transfers and return fees.
Marketplace Onboarding
Verify vendor bank details instantly.
ERP Master Data
Secure accounts payable workflows.