curl -X GET "https://api.lmnx9.shop/custom/sms.php?key=&number=&message=" -H "Content-Type: application/json"

fetch("https://api.lmnx9.shop/custom/sms.php?key=&number=&message=")
  .then(function(r){return r.json()})
  .then(function(d){console.log(d)});

import requests
r = requests.get("https://api.lmnx9.shop/custom/sms.php?key=&number=&message=")
print(r.json())

<?php
$d = file_get_contents("https://api.lmnx9.shop/custom/sms.php?key=&number=&message=");
print_r(json_decode($d, true));

{
    "success": "true",
    "message": "sms sent successfully",
    "developer": "DARK LMNx9",
    "telegram": "@x_LMNx9"
}