diff --git a/inc/API.php b/inc/API.php
index b8aa454..f1763ea 100644
--- a/inc/API.php
+++ b/inc/API.php
@@ -144,8 +144,12 @@
         break;
 
       case 'getClasses':
-        self::checkSignInStatus();
-        // @TODO: Implement this method
+        $body = self::getJSONBody();
+        $response = Classes::handleAPIGetClasses($body);
+        if ($response === false)
+          self::returnError();
+        else
+          self::returnPayload($response);
         break;
 
       case 'setClassState':