title: Directions and API key
body: <p>I want to use direction between two point (routing on map) with using google map api v2. I should write a URL and send to server like this : "<a href="http://maps.googleapis.com/maps/api/directions/json" rel="nofollow">http://maps.googleapis.com/maps/api/directions/json</a>"+origin+destination+apiKey.</p>
  
  <p>In android site, said should to send apiKey and in some questions in stackoverflow or some tutorial not add  apiKey to URL. Now i am confused, i don't know should send api key or not. when i add debug api key(that writes in manifest file) , result sent, had error--</p>
  
  <blockquote>
    <p>This IP, site or mobile application is not authorized to use this API key.</p>
  </blockquote>
  
  <p>and when i did not add api key,i had another error.</p>
  
  <p>Please explain for me, i should add api key or not? And should i add <code>Google maps Geolocation API</code> to my console for using directions?</p>
  
  <p>Thanks for your answers ;)</p>