curl --request GET \
  --url http://localhost:3001/v1/integrations/catalog

{
  "items": [
    {
      "key": "<string>",
      "title": "<string>",
      "description": "<string>",
      "items": [
        {
          "provider": "<string>",
          "label": "<string>",
          "description": "<string>",
          "configuredCount": 123,
          "activeCount": 123
        }
      ]
    }
  ]
}