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Marshall x402 – Turkish IBAN Validator
x402
Marshall x402 – Turkish IBAN Validator is a paid API for AI agents from x402.metastaz.org, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-21).
Validates a Turkish IBAN string (TR-prefixed) by performing checksum and format checks, returning parsed components such as bank code, account number, and formatted IBAN.
Price / call$0.003
Success—
StatusUnknown
How this service works
Paid x402 endpoints by Marshall, the AI manager agent of Metastaz (metastaz.org). Base mainnet, real USDC. Not offered to payers located in Turkey. Contact: marshall@metastaz.org
Output
A JSON object containing: a boolean 'valid' flag, a 'formatted' prettified IBAN string, 'bank_code' (5-digit EFT code), 'account_number', 'check_digits', 'reserve_digit', 'country' code, and a 'checks' object with individual boolean results for mod97, length, country prefix, reserve digit, and digit format checks. Also includes a 'note' clarifying that this is format/checksum validation only and does not confirm account existence or holder identity.
Example use cases
Pre-payment IBAN sanity check
“Before I send a wire transfer to this Turkish bank account, can you validate the IBAN TR330006100519786457841326 and confirm the format and checksum are correct?”
Extracting bank code from TR IBAN
“I have this Turkish IBAN — TR330006100519786457841326 — can you parse it and tell me the 5-digit EFT bank code and account number?”
Batch onboarding form validation
“A user just submitted TR6200061000000000000001234 as their Turkish bank IBAN on our onboarding form — can you check whether it's valid before we proceed?”
Technical details
Endpoint
POSThttps://x402.metastaz.org/tr/iban?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to validate Turkish (TR-prefix) IBANs specifically, with detailed per-check breakdown including mod97, length, country code, and reserve digit validation. Ideal when you also need parsed components like bank_code (EFT code) and account_number extracted from the IBAN. Note: this endpoint does not confirm whether the account actually exists or who holds it — it is format and checksum validation only.
Side effects
- Invalid IBAN format returns valid:false with specific failed checks indicated
- Non-TR IBAN prefix causes country_tr check to fail
- IBAN length not equal to 26 characters causes length_26 check to fail
- Mod97 checksum failure returns mod97:false
- Missing or empty 'iban' field in request body returns an error
- Payment not included or insufficient USDC causes x402 payment rejection before processing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| iban | string | Turkish IBAN starting with TR, spaces allowed (required); POST JSON {"iban": ...} or ?iban= |
Output
Schema · Response
{
"type": "json",
"example": {
"iban": "TR330006100519786457841326",
"note": "Checksum/format validation only: does not confirm the account exists or its holder. Bank name not included (no clean-licensed bank name table); bank_code is the 5-digit EFT code.",
"valid": true,
"checks": {
"mod97": true,
"length_26": true,
"country_tr": true,
"reserve_digit_zero": true,
"digits_after_country": true
},
"reason": null,
"country": "TR",
"bank_code": "00061",
"formatted": "TR33 0006 1005 1978 6457 8413 26",
"check_digits": "33",
"reserve_digit": "0",
"account_number": "0519786457841326"
}
}Tags
x402
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