curl --request GET \
  --url https://api.snowseo.com/v3/topic-clusters/ \
  --header 'Authorization: Bearer <token>'

{
  "summary": {
    "totalKeywords": 123,
    "trackedPrompts": 123,
    "avgSearchVisibility": 123,
    "avgAiVisibility": 123
  },
  "items": [
    {
      "id": "<string>",
      "name": "<string>",
      "createdAt": "<string>",
      "keywordCount": 123,
      "promptCount": 123,
      "trackedPromptCount": 123,
      "trackedKeywordCount": 123,
      "aiVisibility": 123,
      "searchVisibility": 123,
      "topicalAuthorityScore": 123,
      "changePct": 123,
      "leaders": [
        {
          "name": "<string>",
          "domain": "<string>"
        }
      ]
    }
  ]
}