# Agent IA API – IBAN Validation

> Agent IA API – IBAN Validation is a paid API for AI agents from api.api-agent-ia.ch, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-20).

Validates an IBAN (International Bank Account Number) and returns its validity status, paid per call in USDC on Base via x402.

## Facts

- Endpoint: GET https://api.api-agent-ia.ch/valider-iban?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-ia-api-iban-validation-7a6daa5d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cw_s_L82gp8qKb7LOdskT

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 agent-ia-api-iban-validation-7a6daa5d
```

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

## When to prefer this

Use this endpoint when you need a lightweight, pay-per-call IBAN validation service with no subscription required, billed in USDC on the Base blockchain via x402. Ideal for agents that sporadically validate IBANs without needing a full KYC or banking API integration.

## Known failure modes

- Missing or empty IBAN input returns a validation error
- Malformed IBAN (wrong length, invalid characters) flagged as invalid
- Network timeout or upstream service unavailability
- Payment failure if USDC balance is insufficient on Base
- Invalid country code prefix returns format error

## How this service works

Validate an IBAN

## Output

Returns a validation result indicating whether the supplied IBAN string is valid or invalid, potentially including parsed details such as country code, bank code, and check digit correctness.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "iban"
     ],
     "properties": {
      "iban": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "example": {
   "iban": "CH93...",
   "pays": "CH",
   "valide": true
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-ia-api-iban-validation-7a6daa5d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.api-agent-ia.ch](https://www.zero.xyz/host/api.api-agent-ia.ch/llms.txt)