curl --request GET \
  --url https://api.cartesia.ai/agents/calls \
  --header 'Authorization: Bearer <token>' \
  --header 'Cartesia-Version: <cartesia-version>'

{
  "data": [
    {
      "id": "<string>",
      "agent_id": "<string>",
      "status": "created",
      "agent_name": "<string>",
      "start_time": "2023-11-07T05:31:56Z",
      "end_time": "2023-11-07T05:31:56Z",
      "transcript": [
        {
          "role": "<string>",
          "start_timestamp": 123,
          "end_timestamp": 123,
          "text": "<string>",
          "text_chunks": [
            {
              "text": "<string>",
              "start_timestamp": 123
            }
          ],
          "end_reason": "<string>",
          "tool_calls": [
            {
              "id": "<string>",
              "name": "<string>",
              "arguments": {},
              "result": "<string>"
            }
          ],
          "vad_buffer_ms": 123,
          "stt_ttfb": 123,
          "tts_ttfb": 123,
          "log_event": {
            "event": "<string>",
            "metadata": {},
            "timestamp": 123
          },
          "log_metric": {
            "name": "<string>",
            "value": 123,
            "timestamp": 123
          }
        }
      ],
      "telephony_params": {
        "to": "<string>",
        "from": "<string>",
        "call_sid": "<string>",
        "direction": "<string>",
        "parameters": {},
        "headers": {},
        "connection_type": "websocket"
      },
      "summary": "<string>",
      "error_message": "<string>",
      "end_reason": "agent_hangup",
      "deployment_id": "<string>",
      "deployment_version_id": "<string>",
      "metadata": {}
    }
  ],
  "has_more": true,
  "next_page": "<string>"
}