curl -H "X-API-Key: $PARTICLE_API_KEY" \
  "https://api.particle.pro/v1/podcasts/topics?limit=25"

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