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IBAN BY Mod-97 Validator
x402
IBAN BY Mod-97 Validator is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.009/call, status unknown (last checked 2026-10-23).
Validates whether a given string is a mod-97-valid Belarusian IBAN (BY) of the required 28-character length
Price / call$0.009
Success—
StatusUnknown
How this service works
Call when an agent needs whether an IBAN is a mod-97-valid BY number of length 28. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/check-iban-by first.
Output
Returns a validation result indicating whether the supplied string is a structurally correct, mod-97-valid Belarusian IBAN (BY) of 28 characters — typically a boolean pass/fail along with any relevant details about the check
Example use cases
Pre-transfer IBAN sanity check
“Before I wire money to this Belarusian supplier, can you verify that their IBAN BY13NBRB3600900000002Z00AB00 is mod-97-valid and the right 28-character length?”
Batch onboarding form validation
“A new vendor filled in their bank details and gave me IBAN BY44ALFA30127500290027410000 — can you confirm it's a properly formatted and mod-97-valid BY account number before I save it?”
Debugging a rejected payment
“Our payment processor rejected this IBAN: BY999PRBC30124100000000000001 — can you run the mod-97 check on it and tell me if the number itself is valid or malformed?”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/check-iban-by?utm_source=zero.xyzWhen to prefer
Use this endpoint when you specifically need to validate a Belarusian BY IBAN (28 characters) using the standard mod-97 algorithm and need a deterministic, non-LLM result. Prefer the free sandbox endpoint /v1/sandbox/check-iban-by for testing before paying. Choose this over general-purpose IBAN validators if you require a paid, auditable, production-grade validation call for BY-country accounts specifically.
Side effects
- Input string missing or empty — returns error
- Value exceeds 20000 character maximum or is under 1 character
- Non-BY IBAN country code submitted — may return invalid or unsupported
- Malformed JSON body — returns 400-level error
- Payment of $0.009 USDC not attached — returns 402 Payment Required
- Network timeout on the endpoint
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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