curl --request GET \
  --url https://app.nex.ai/api/developers/v1/notifications/custom \
  --header 'Authorization: <api-key>'

{
  "rules": [
    {
      "id": "<string>",
      "name": "<string>",
      "prompt": "<string>",
      "is_enabled": true,
      "schedule": "<string>",
      "created_at": "2023-11-07T05:31:56Z"
    }
  ]
}