curl --request GET \
  --url https://api.paycrest.io/v1/sender/stats \
  --header 'API-Key: <api-key>'

{
  "status": "success",
  "message": "Operation successful",
  "data": {
    "totalOrders": 123,
    "totalOrderVolume": "<string>",
    "totalFeeEarnings": "<string>"
  }
}