curl --request POST \
  --url https://api.wppfy.com/contact/add \
  --header 'Content-Type: application/json' \
  --header 'token: <api-key>' \
  --data '
{
  "phone": "<string>",
  "name": "João Silva"
}
'

{
  "success": true,
  "message": "Contato adicionado com sucesso",
  "contact": {
    "jid": "5511999999999@s.whatsapp.net",
    "name": "João Silva",
    "phone": "5511999999999"
  }
}