curl --request GET \
  --url 'https://api.stateset.com/api/v1/ar/aging/customers' \
  --header 'Authorization: Bearer YOUR_API_KEY'

{
  "customers": [
    {
      "current": "string",
      "customer_id": "string",
      "customer_name": null,
      "days_1_30": "string",
      "days_31_60": "string",
      "days_61_90": "string",
      "days_over_90": "string",
      "invoice_count": 1,
      "total_outstanding": "string"
    }
  ],
  "total": 1
}