curl --request GET \
  --url https://api.particle.pro/v1/topics \
  --header 'X-API-Key: <api-key>'

{
  "data": [
    {
      "id": "<string>",
      "name": "<string>",
      "slug": "<string>",
      "ancestry": "<string>",
      "ancestry_path": "<string>",
      "episode_count": 123
    }
  ],
  "has_more": true,
  "cursor": "<string>"
}