curl --request GET \
  --url https://api.spikelabs.com/v1/personalities \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "id": "personality_abc123",
      "object": "personality",
      "name": "Luv",
      "created_at": "2023-11-07T05:31:56Z",
      "updated_at": "2023-11-07T05:31:56Z",
      "description": "<string>",
      "system_prompt": "<string>",
      "voice": {
        "provider": "elevenlabs",
        "voice_id": "<string>",
        "settings": {
          "stability": 0.5,
          "similarity_boost": 0.5,
          "speed": 1.25
        }
      },
      "appearance": {
        "avatar_id": "<string>",
        "style": "realistic",
        "background": "<string>"
      },
      "traits": {
        "warmth": 0.5,
        "humor": 0.5,
        "formality": 0.5,
        "verbosity": 0.5,
        "empathy": 0.5
      },
      "metadata": {}
    }
  ],
  "has_more": true,
  "next_cursor": "<string>"
}