Jquery JSON call: Uncaught SyntaxError: Unexpected token :

I want my site to be able to retrieve steam item prices like below:

http://ift.tt/1Iqt2xw

Right now i have this code:

$.ajax({
    type : "Get",
    url : "http://ift.tt/1HEVhds",
    data :"currency=3&appid=730&market_hash_name=" + steaminfo_inventory[3][index][7],
    dataType :"jsonp",
    jsonp: false,
    success : function(data){
        alert(data);},
});

I keep getting an error: Uncaught SyntaxError: Unexpected token :. It seems like i am still receiving the data, but i still get the error. When i click on the error in chrome i am seeing this output: {"success":true,"lowest_price":"0,06€","volume":"107,179","median_price":"0,06€ "}

Any help is appreciated Thanks.