diff --git a/controllers/weather.php b/controllers/weather.php
index ca06e76..cb53298 100644
--- a/controllers/weather.php
+++ b/controllers/weather.php
@@ -3,12 +3,13 @@
 $app->get('/api/weather', function() use($app) {
   $params = $app->request()->params();
 
-  if(k($params, 'latitude') !== null && k($params, 'longitude') !== null) {
+  if(k($params, 'latitude') !== null && k($params, 'longitude') !== null && k($params, 'apikey') !== null) {
 
     $lat = (float)$params['latitude'];
     $lng = (float)$params['longitude'];
+    $key = $params['apikey'];
 
-    $weather = \p3k\Weather::weather_for_location($lat, $lng);
+    $weather = \p3k\Weather::weather_for_location($lat, $lng, $key);
 
     if($weather) {
       json_response($app, $weather);
diff --git a/p3k/Weather.php b/p3k/Weather.php
index f46cb03..c0cfc91 100644
--- a/p3k/Weather.php
+++ b/p3k/Weather.php
@@ -5,8 +5,8 @@ use Config;
 use DateTime, DateTimeZone;
 
 class Weather {
-  public static function weather_for_location($lat, $lng) {
-    $data = self::_fetch($lat, $lng);
+  public static function weather_for_location($lat, $lng, $key) {
+    $data = self::_fetch($lat, $lng, $key);
     if(!$data) return null;
 
     $current = $data->current_observation;
@@ -87,9 +87,9 @@ class Weather {
     return $weather;
   }
 
-  private static function _fetch($lat, $lng) {
+  private static function _fetch($lat, $lng, $key) {
     $ch = curl_init();
-    curl_setopt($ch, CURLOPT_URL, 'http://api.wunderground.com/api/'.Config::$wundergroundAPIKey.'/conditions/q/'.$lat.','.$lng.'.json');
+    curl_setopt($ch, CURLOPT_URL, 'http://api.wunderground.com/api/'.$key.'/conditions/q/'.$lat.','.$lng.'.json');
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
     // curl_setopt($ch, CURLOPT_USERAGENT, '');
     curl_setopt($ch, CURLOPT_TIMEOUT, 5);
diff --git a/views/index.php b/views/index.php
index 4a4f131..b7cd03d 100644
--- a/views/index.php
+++ b/views/index.php
@@ -28,10 +28,10 @@
     <h3>Retrieving the current weather for a lat/lng</h3>
 
     <ul>
-      <li><a href="/api/weather?latitude=45.5118&amp;longitude=-122.6433">/api/weather?latitude=45.5118&amp;longitude=-122.6433</a></li>
+      <li><a href="/api/weather?latitude=45.5118&amp;longitude=-122.6433&amp;apikey=XXX">/api/weather?latitude=45.5118&amp;longitude=-122.6433&amp;apikey=XXX</a></li>
     </ul>
 
-    <p>Icon names reference the <a href="https://erikflowers.github.io/weather-icons/">weather-icons</a> icon font.</p>
+    <p>You'll need to pass a Wunderground API key in the request. Icon names reference the <a href="https://erikflowers.github.io/weather-icons/">weather-icons</a> icon font.</p>
 
   <h2><i class="fa fa-map"></i> Static Maps</h2>