# ChainVerdict IBAN Validator

> ChainVerdict IBAN Validator is a paid API for AI agents from chainverdict.xyz, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-12).

Validates an IBAN (International Bank Account Number) and returns its validity status and parsed components

## Facts

- Endpoint: GET https://chainverdict.xyz/v1/validate/iban/%7Biban%7D
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/chainverdict-iban-validator-ab1f51d7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_PZQtDc4asgh6452UWra0U

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 chainverdict-iban-validator-ab1f51d7
```

Example prompt: Can you validate this IBAN for me — GB29NWBK60161331926819 — and tell me if it's correctly formatted and valid?

## When to prefer this

Choose this endpoint when you need a cheap, pay-per-call IBAN validation without a subscription — ideal for low-volume checks or sporadic validation needs in payment pipelines. It is well-suited for agents that need to verify IBANs on-demand before initiating international wire transfers or onboarding banking details from users.

## Known failure modes

- Invalid or malformed IBAN string returns a validation failure with error details
- Missing IBAN path parameter results in a 404 or bad request error
- Unpaid request returns HTTP 402 with x402 payment requirements before processing
- Unsupported or unrecognized country prefix may result in partial validation or error
- Network timeout or service unavailability returns a 5xx error

## How this service works

x402 v2 pay-per-call. Unpaid requests receive HTTP 402 with payment requirements.

## Output

Returns a validation verdict for the provided IBAN, indicating whether it is structurally valid and correctly formatted, along with parsed details such as country code, check digits, and bank identifier where available.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "iban"
     ],
     "properties": {
      "iban": {
       "type": "string",
       "description": "IBAN incl. country prefix"
      }
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "additionalProperties": true
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/chainverdict-iban-validator-ab1f51d7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from chainverdict.xyz](https://www.zero.xyz/host/chainverdict.xyz/llms.txt)