List Meta-Topics

curl --request GET \
  --url https://api.upriver.ai/v1/topics/breakout/meta \
  --header 'X-API-Key: <api-key>'

{
  "meta_topics": [
    {
      "meta_topic_id": "<string>",
      "narrative_id": "<string>",
      "display_name": "<string>",
      "vertical": "<string>",
      "status": "<string>",
      "cumulative_score": 123,
      "peak_burst_score": 123,
      "member_count": 123,
      "direct_citation_count": 123,
      "created_at": "2023-11-07T05:31:56Z",
      "updated_at": "2023-11-07T05:31:56Z",
      "scope": "<string>",
      "ranking_score": 123,
      "last_activity_at": "2023-11-07T05:31:56Z",
      "parent_meta_topic_id": "<string>",
      "is_parent": false,
      "child_count": 123
    }
  ],
  "total_count": 123,
  "next_cursor": "<string>"
}