curl --request GET \
  --url https://api.example.com/v1/voiceai/knowledge-base \
  --header 'x-api-key: <api-key>'

{
  "documents": [
    {
      "id": "<string>",
      "name": "<string>",
      "type": "<string>",
      "metadata": {
        "created_at_unix_secs": 123,
        "last_updated_at_unix_secs": 123,
        "size_bytes": 123
      },
      "url": "<string>",
      "dependent_agents": []
    }
  ],
  "has_more": true,
  "next_cursor": "<string>"
}