curl --request POST \
  --url https://cloud.onyx.app/api/web-search/open-urls \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "urls": [
    "<string>"
  ]
}
'

{
  "results": [
    {
      "document_citation_number": 123,
      "content": "<string>",
      "unique_identifier_to_strip_away": "<string>",
      "type": "open_url"
    }
  ],
  "provider_type": "onyx_web_crawler"
}