curl --request POST \
  --url https://www.closient.com/content/api/v1/learn/readiness-check \
  --header 'Content-Type: application/json' \
  --data '
{
  "gtin": "<string>",
  "email": ""
}
'

{
  "valid": true,
  "error": "",
  "gtin14": "",
  "status": "",
  "score": 0,
  "brand_name": "",
  "product_name": "",
  "internal_found": false,
  "data_fields": [],
  "recommendations": []
}