IBAN check with MOD-97

Check an IBAN before you store it or send a payout instruction: one GET returns the normalised IBAN and its groups of four, whether the two check digits pass MOD-97, whether the length matches the national length for the SEPA countries in the built-in table, the country code and the BBAN - each check reported separately, so a typo is visible instead of a bare false. Everything is computed from the

Open endpoint ↗

Price per call: $0.002
Chain: Base
Method: GET
Paid calls · 30 days: 0

Call it from code

This API is run by its own provider and paid directly through x402. We list it so you can find it; we don't route or hold the payment.

import { x402Client, wrapFetchWithPayment } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";

const client = new x402Client();
registerExactEvmScheme(client, { signer: agentAccount });

const pay = wrapFetchWithPayment(fetch, client);
const res = await pay("https://x402-catalog-history.ai-business-surface.workers.dev/iban", { method: "GET" });
console.log(await res.json());

https://x402-catalog-history.ai-business-surface.workers.dev/iban