# IBAN Validator

> IBAN Validator is a paid API for AI agents from x402-toolbox.shablony-pro.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-02).

Validates an IBAN (International Bank Account Number) string for structural and checksum correctness

## Facts

- Endpoint: GET https://x402-toolbox.shablony-pro.workers.dev/util/iban-validator?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/iban-validator-e9731b04
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_55ytFr5SKEnOuLP7En8M1

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability iban-validator-e9731b04
```

Example prompt: Can you check if this IBAN is valid: DE89370400440532013000?

## When to prefer this

Choose this endpoint when you need a quick, pay-per-call IBAN validation with no API key or signup required — ideal for AI agents that need to validate bank account numbers on demand using x402 micropayments. Prefer this over building custom IBAN checksum logic or subscribing to a larger banking data service when you only need structural/checksum validation.

## Known failure modes

- Malformed or missing IBAN input returns validation failure
- Non-IBAN string passed as input may return ok:false or an error
- Payment failure (insufficient USDC balance) returns HTTP 402 and validation is not performed
- Unsupported IBAN country code may return invalid even for structurally plausible strings

## How this service works

309 deterministic pay-per-call tools for AI agents over x402 (USDC, Base). No signup, no API key: the payment is the identity.

## Output

Returns a JSON object with an `ok` boolean indicating whether the request succeeded and a `paid` boolean confirming payment was processed; the IBAN validation result (valid/invalid) is embedded in the response body.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "schema": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "paid": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/iban-validator-e9731b04/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-toolbox.shablony-pro.workers.dev](https://www.zero.xyz/host/x402-toolbox.shablony-pro.workers.dev/llms.txt)