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GR IBAN Mod-97 Validator
x402
GR IBAN Mod-97 Validator is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.007/call, status unknown (last checked 2026-09-29).
Validates whether a given string is a mod-97-valid Greek (GR) IBAN of exactly 27 characters
Price / call$0.007
Success—
StatusUnknown
How this service works
Call when an agent needs whether an IBAN is a mod-97-valid GR number of length 27. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-iban-gr first.
Output
Returns a boolean or structured result indicating whether the provided string is a valid Greek (GR) IBAN — confirming it is exactly 27 characters long and passes the ISO 7064 mod-97-10 checksum algorithm. No external bank registry lookup is performed; this is a purely algorithmic structural check.
Example use cases
Payment form IBAN pre-validation
“Before I send this wire transfer, can you verify that GR9608100010000001234567890 is a valid Greek IBAN with the correct mod-97 checksum and 27-character length?”
Onboarding bank account verification
“A new supplier just submitted their Greek bank account IBAN GR1601101250000000012300695 — can you confirm it's structurally valid before I add it to our payment system?”
Bulk data cleanup flag
“I have this Greek IBAN from our database: GR7201101010000010569014211 — can you tell me if it passes the mod-97 check and is the right length so I know whether to flag it for correction?”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/check-iban-gr?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, cheap algorithmic check that a Greek (GR) IBAN is structurally and mathematically valid via mod-97, with no need for live bank registry lookup. Prefer the free sandbox endpoint POST /v1/sandbox/check-iban-gr first for testing. Choose this paid endpoint when operating in production and certainty about GR IBAN integrity is required before initiating payments or onboarding suppliers.
Side effects
- Non-GR IBAN provided — may return invalid even if checksum is correct for another country
- IBAN of wrong length — returns invalid (GR IBANs must be exactly 27 chars)
- Malformed or non-alphanumeric input — likely returns invalid or error
- Empty string — rejected by minLength constraint in schema
- Payment failure — 402 response if USDC payment not included; use sandbox endpoint first
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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