Use the Oxxa API in PHP.
composer require ben221199/oxxa-api
$username = 'myUsername'; // Your API username $password = 'myPassword'; // Your API password $useMD5 = true; // When true, password is sent in its MD5 form. $isTesting = false; // When true, payment wil not occur $oxxaApi = new \Ben221199\Oxxa\API\OxxaAPI('https://api.oxxa.com',$username,$password,$useMD5,$isTesting); $xml = $oxxaApi->DOMAIN_CHECK([ 'sld' => 'myDomain', 'tld' => 'com', ]);