Hi - I answer from the OpenSmartRoute documentation: routing, the API, plans and quotas, self-hosting. Ask away, or open a support ticket if you need a person.
Grounded in the docs - follow a source before acting on it.
IBAN Validator - Tool - OpenSmartRoute
Toolv1.0.0
IBAN Validator
Validate IBAN bank account numbers (format + mod-97 checksum). Returns whether the IBAN is valid.