List Cardholders

GET /api/v1/business/cardholders

curl -X GET "https://api.usenumero.com/numeroaccount/api/v1/business/cardholders" \
  -H "X-Numero-Api-Key: your_api_key" \
  -H "X-Numero-Signature: $SIGNATURE" \
  -H "X-Numero-Signature-Version: v2"

{
  "data": [
    {
      "customerId": "NCUS9953596C2B7F45",
      "firstName": "Ada",
      "lastName": "Obi",
      "email": "[email protected]",
      "phone": "08012345678",
      "country": "NG",
      "status": "Active",
      "activeCardCount": 1,
      "createdAt": "2026-06-16T12:00:00Z"
    }
  ],
  "error": null,
  "meta": {
    "request_id": "req_365123ebc73323f1482508560ce6400e",
    "pagination": null
  }
}