title: How to Connect to a Google Public Calendar
body: <p>I am trying to build a script to retrieve all my events using the <em>new</em> Google Calendar API v3 since Google deprecated v1 and v2 on 11/17/2014.</p>
  
  <p>I am receiving this error:</p>
  
  <blockquote>
    <p>Fatal error: Uncaught exception 'Google_Service_Exception' with
    message 'Error calling GET
    <a href="https://www.googleapis.com/calendar/v3/calendars/MY-PUBLIC-CALENDAR/events" rel="nofollow">https://www.googleapis.com/calendar/v3/calendars/MY-PUBLIC-CALENDAR/events</a>:
    (403) Daily Limit for Unauthenticated Use Exceeded. Continued use
    requires signup.' in
    /usr/local/lib/php/google-api-php-client/src/Google/Http/REST.php:76
    Stack trace: #0
    /usr/local/lib/php/google-api-php-client/src/Google/Http/REST.php(41):
    Google_Http_REST::decodeHttpResponse(Object(Google_Http_Request)) #1
    /usr/local/lib/php/google-api-php-client/src/Google/Client.php(548):
    Google_Http_REST::execute(Object(Google_Client),
    Object(Google_Http_Request)) #2
    /usr/local/lib/php/google-api-php-client/src/Google/Service/Resource.php(190):
    Google_Client->execute(Object(Google_Http_Request)) #3
    /usr/local/lib/php/google-api-php-client/src/Google/Service/Calendar.php(1561):
    Google_Service_Resource->call('list', Array, 'Google_Service_...') #4
    /home/sme/public_html/app/mods/googleCalendar_3.0/cache_events.php(71):
    Google_Service_Calendar_Events_Resource->list in
    /usr/local/lib/php/google-api-php-client/src/Google/Http/REST.php on
    line 76</p>
  </blockquote>
  
  <p>Does the <code>(403) Daily Limit for Unauthenticated Use Exceeded</code> mean I can no longer test and troubleshoot my script today? Really?</p>
  
  <p>How long do I need to wait to resume working?
  What's the workaround?
  Why would Google stop us from building a script?</p>