IBAN Validate

x402

IBAN Validate is a paid API for AI agents from anibalb.duckdns.org, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-31).

Validates an IBAN (International Bank Account Number) and returns its validity status and country of origin

Price / call$0.001

Seller volume →—

Success—

StatusUnknown

How this service works

Public data and utility APIs paid per call in USDC on Base (x402). No accounts, no API keys. 174 routes: crypto/equity data, onchain reads, DNS/email/security intel, geo/weather, x402 payment diagnostics, dev utilities and more.

Output

Returns a JSON object containing the original IBAN string, a boolean `valid` field indicating whether the IBAN passes format and checksum validation, and a two-letter ISO country code extracted from the IBAN prefix.

Example use cases

Pre-transfer IBAN verification

“Before I send a wire transfer, can you validate this IBAN to make sure it's correct: GB29NWBK60161331926819?”

E-commerce checkout IBAN check

“A customer entered their IBAN FR7630006000011234567890189 for payment — can you verify it's a valid IBAN and confirm which country it's from?”

Batch onboarding data quality

“We have a new supplier that gave us their bank details. Can you validate their IBAN NL91ABNA0417164300 before we add it to our payment system?”

Technical details

Endpoint

GEThttps://anibalb.duckdns.org/x402/iban-validate?utm_source=zero.xyz

When to prefer

Use this endpoint when you need a lightweight, no-signup IBAN validation that also extracts the country code, paid per-call in USDC. Prefer this over building your own checksum logic or using account-based services when operating in a crypto-native, keyless payment flow via x402.

Side effects

Invalid or malformed IBAN returns valid:false with no country
Missing IBAN parameter may return a 400 or empty response
Non-IBAN strings (e.g. credit card numbers) may return valid:false
Payment failure (402) if USDC balance insufficient for the $0.001 call fee

Input

Schema · Request body

Field	Type	Description
properties	string

Output

Schema · Response

{
  "type": "json",
  "example": {
    "iban": "DE89370400440532013000",
    "valid": true,
    "country": "DE"
  }
}

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