curl --request GET \
  --url https://app.closerx.ai/api/v2/campaign-stats/ \
  --header 'api_key: <api-key>'

{
  "active_campaign_count": 1,
  "active_quick_campaign_count": 7,
  "total_credit_deducted": 285,
  "total_call_duration": 72,
  "credit": 67.5813
}