curl --request GET \
  --url https://api.truedy.ai/api/public/v1/batch-calls/{batch_call_id}/analytics \
  --header 'Authorization: Bearer <token>'

{
  "data": {
    "id": "batch_m1n2o3p4",
    "name": "March campaign",
    "status": "active",
    "total_contacts": 500,
    "completed_contacts": 350,
    "successful_contacts": 280,
    "failed_contacts": 70,
    "voicemail_contacts": 45,
    "no_answer_contacts": 25,
    "total_cost_usd": 147.5,
    "average_duration_seconds": 187,
    "first_call_at": "2026-03-05T09:15:00.000000Z",
    "last_call_at": "2026-03-10T16:45:00.000000Z",
    "calls_per_phone": {
      "+15559876543": 175,
      "+15551234567": 175
    }
  },
  "meta": {
    "request_id": "req_32e7531c-8",
    "ts": "2026-03-10T17:00:00.000000Z"
  }
}