curl --request GET \
  --url https://api.sigmamind.ai/v1/campaigns \
  --header 'X-API-Key: <api-key>'

{
  "data": [
    {
      "campaignId": "XiQEBcj9cc5TFRB4",
      "campaignName": "My Campaign",
      "campaignStatus": "live",
      "scheduledDate": "2023-11-07T05:31:56Z",
      "concurrentCalls": 5,
      "agent": {
        "name": "New AI Agent",
        "agentId": "D5D0p7TUs66TTAEAx",
        "status": "active"
      },
      "phoneNumber": "Object",
      "errors": [
        "<string>"
      ],
      "scheduled": true
    }
  ],
  "page": 123,
  "size": 123,
  "totalCounts": 123,
  "totalPages": 123,
  "hasNext": true,
  "hasPrevious": true
}