curl --request GET \
  --url https://api.openmic.ai/v1/calls \
  --header 'Authorization: Bearer <token>'

{
  "calls": [
    {
      "call_type": "phonecall",
      "from_number": "+1234567890",
      "to_number": "+0987654321",
      "direction": "outbound",
      "call_id": "cmbbvrg8wzi487w02m2bc7dji",
      "agent_id": "bvrg8wzi487w02m2bc7dh0ev",
      "call_status": "ended",
      "customer_id": "customer_001",
      "start_timestamp": 1678886400000,
      "end_timestamp": 1678886700000,
      "duration_ms": 300000,
      "transcript": [
        [
          "assistant",
          "Hello! How can I help you today?"
        ],
        [
          "user",
          "I'd like to schedule an appointment."
        ]
      ],
      "recording_url": "https://recordings.openmic.ai/call_98765.mp3",
      "latency": {
        "e2e_min_latency": 0.5,
        "e2e_median_latency": 1.2,
        "e2e_p90_latency": 2.1,
        "llm_min_latency": 0.3,
        "llm_median_latency": 0.8,
        "llm_p90_latency": 1.5,
        "tts_min_latency": 0.2,
        "tts_median_latency": 0.4,
        "tts_p90_latency": 0.6
      },
      "call_analysis": {
        "summary": "Customer called to schedule an appointment and was successfully assisted.",
        "is_successful": true,
        "success_evaluation": "excellent",
        "extracted_data": null
      },
      "call_cost": {
        "total_cost": 0.0822,
        "llm_cost": 0.0052548,
        "tts_cost": 0.0242269,
        "stt_cost": 0.0527183
      },
      "dynamic_variables": {
        "name": "John"
      }
    }
  ],
  "pagination": {
    "limit": 1,
    "offset": 0,
    "total": 1,
    "has_more": false
  }
}