briteverify.js

var mail = "test@test.com";
//username is public API Key
var url = "https://bpi.briteverify.com/emails.json?address="+mail+"&username=";
$.ajax({
    url: url,
    dataType: "jsonp",
    success: function(data){
        var status = data.status;
        if(status === 'valid') {
            console.log('success')
        } else {
            console.log('error')
        }
    }
});