To use this on{X} Recipe, simply copy the code below and modify if needed.

device.screen.on("unlock", function(){
    device.ajax(
    {
      url: 'https://btc-e.com/api/1/ticker',
      type: 'GET'
    },
    function onSuccess(body, textStatus, response) {
      var parsedBody;
      if(!(body && (parsedBody = JSON.parse(body)))) {
        var error = {};
        error.message = 'invalid body format';
        error.content = body;
        console.error('error: ',error);
      }
      
      var notification = device.notifications.createNotification('Bitcoin value');
      notification.content = parsedBody.ticker.sell + "USD";
      notification.on('click', function(){
        device.browser.launch('https://btc-e.com/exchange/btc_usd');
      });
      notification.show();
      console.info('successfully received http response from btc-e!');
    });
});