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IBAN IS (Iceland) Validator
x402
IBAN IS (Iceland) Validator is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).
Validates whether a given string is a mod-97-compliant Icelandic (IS) IBAN of length 26
Price / call$0.01
Success—
StatusUnknown
How this service works
Call when an agent needs whether an IBAN is a mod-97-valid IS number of length 26. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/check-iban-is first.
Output
Returns whether the submitted string is a valid Icelandic (IS) IBAN: specifically that it is exactly 26 characters long, starts with the 'IS' country code, and passes the mod-97 checksum algorithm.
Example use cases
Pre-payment IBAN check for Iceland
“Before we wire money to this Icelandic supplier, can you verify that their IBAN IS140159260076545510730339 is actually a valid IS IBAN and passes the mod-97 checksum?”
Payroll validation for Icelandic employees
“I need to add a new employee from Iceland to our payroll system — can you confirm that IS300300003950530285620000 is a properly formatted and mod-97-valid Icelandic IBAN before I save it?”
Customer onboarding bank detail check
“A customer just submitted IS500401260126540136870149 as their bank account for refunds — can you validate it's a correctly structured and mod-97-valid 26-character IS IBAN?”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/check-iban-is?utm_source=zero.xyzWhen to prefer
Use this endpoint when you specifically need to validate an Icelandic (IS) IBAN of exactly 26 characters with a mod-97 checksum. Prefer this over generic IBAN libraries when you need a lightweight, pay-per-use serverless check without bundling a full IBAN library. Note: try the free sandbox endpoint POST /v1/sandbox/check-iban-is before calling this paid endpoint to avoid unnecessary $0.01 charges.
Side effects
- Input string is null or empty — validation fails
- IBAN does not start with 'IS' country code — rejected as wrong country
- IBAN length is not exactly 26 characters — fails length check
- Mod-97 checksum fails — IBAN flagged as invalid
- Non-alphanumeric characters in IBAN — parsing error
- Network timeout or service unavailability — HTTP 5xx error
- Payment not fulfilled (x402 micropayment not sent) — HTTP 402 error
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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