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Hungarian IBAN Validator (HU, length 28)
x402
Hungarian IBAN Validator (HU, length 28) is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.009/call, status unknown (last checked 2026-10-02).
Validates whether a given string is a mod-97-valid Hungarian IBAN of exactly 28 characters.
Price / call$0.009
Success—
StatusUnknown
How this service works
Call when an agent needs whether an IBAN is a mod-97-valid HU number of length 28. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/check-iban-hu first.
Output
Returns a boolean or structured result indicating whether the submitted string is a valid Hungarian IBAN — specifically confirming it is 28 characters long, starts with the 'HU' country code, and passes the mod-97 checksum algorithm.
Example use cases
Validating payout recipient bank account
“Before we transfer funds, can you verify that HU93116000060000000012345676 is a valid Hungarian IBAN so we don't send money to a bad account?”
Onboarding form bank account check
“A new user entered HU42117730161111101800000000 as their bank account — can you confirm it passes the Hungarian IBAN mod-97 validation before we save it?”
Batch payment file pre-screening
“We have a Hungarian supplier invoice with IBAN HU28103000029234100220000004 — please verify it's properly formatted and passes the checksum before we approve the payment.”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/check-iban-hu?utm_source=zero.xyzWhen to prefer
Use this endpoint when you specifically need to validate a Hungarian (HU) IBAN and require the mod-97 checksum to be verified programmatically. Prefer this over generic IBAN validators when you know the account is Hungarian and want a dedicated, low-cost check. Try the sandbox endpoint (POST /v1/sandbox/check-iban-hu) before paying for production calls.
Side effects
- String too short or too long (not 28 characters) — returns invalid
- Wrong country prefix (not HU) — returns invalid
- Mod-97 checksum fails — returns invalid
- Empty or missing input value — returns error
- Non-alphanumeric characters in IBAN — returns invalid
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| data | — | JSON value for schema-check SKUs. Omit it on string checks such as email or IBAN. |
| value | string | Value to check. The route description names the format: email, phone, IBAN, postal code, VAT, national id, or similar. |
| schema | — | JSON Schema document for schema-check SKUs. Omit it on string checks. |
Tags
x402
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