curl --request GET \
  --url 'https://api.example.com/api/threads/{id}' \
  --header 'x-widget-token: YOUR_API_KEY'

{
  "thread": {},
  "messages": [
    {
      "id": "string",
      "sender": "string",
      "text": "string",
      "timestamp": "2026-07-24T12:00:00Z"
    }
  ]
}