curl --request GET \
  --url https://parea-ai-backend-us-9ac16cdbc7a7b006.onporter.run/api/parea/v1/api/parea/v1/experiment/{experiment_uuid}/stats \
  --header 'x-user-id: <api-key>'

{
  "parent_trace_stats": [
    {
      "trace_id": "<string>",
      "latency": 0,
      "input_tokens": 0,
      "output_tokens": 0,
      "total_tokens": 0,
      "cost": 123,
      "scores": [
        {
          "name": "<string>",
          "score": 123,
          "evaluation_metric_id": 123,
          "reason": "<string>"
        }
      ]
    }
  ]
}