Hit the test Endpoint button: With my fresh API Key.

HTTP/1.1 401 Unauthorized
Connection: keep-alive
Content-Length: 134
Content-Type: application/json
Date: Fri, 06 Nov 2015 18:09:52 GMT
Server: Mashape/5.0.6
X-Mashape-Proxy-Response: true

{
  "message": "Missing Mashape application key. Go to http://docs.mashape.com/api-keys to learn how to get your API application key."
}```