Validate an IBAN offline: ISO 7064 mod-97 checksum, per-country length and BBAN structure from the SWIFT IBAN registry (100+ countries plus national/experimental ones), national check digits for BE, ES, FR (+territories), IT/SM and NO; returns country, SEPA membership, bank code, branch code and account number, and the expected check digits on a typo. Optional BIC/SWIFT structure check (ISO 9362) and BIC-vs-IBAN country match. No data leaves the server. Price: $0.005 USDC per successful call (x402, Solana). Same tool over HTTPS: GET https://scorptech.it.com/api/x402/v1/iban-validate