curl --request GET \
  --url https://api.openfunnel.dev/api/v1/verticals \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "id": 1,
      "slug": "ai-observability",
      "name": "AI Observability",
      "description": "AI observability companies with hiring activity.",
      "event_type_count": 12
    }
  ]
}