diff --git a/framework/core/src/Event/AbstractConfigureGambits.php b/framework/core/src/Event/AbstractConfigureGambits.php
index 824e052e2..fd228c490 100644
--- a/framework/core/src/Event/AbstractConfigureGambits.php
+++ b/framework/core/src/Event/AbstractConfigureGambits.php
@@ -17,7 +17,7 @@ abstract class AbstractConfigureGambits
     /**
      * @var GambitManager
      */
-    protected $gambits;
+    public $gambits;
 
     /**
      * @param GambitManager $gambits
diff --git a/framework/core/src/Event/ConfigureApiController.php b/framework/core/src/Event/ConfigureApiController.php
index 0a2a2a4d5..511fa225e 100644
--- a/framework/core/src/Event/ConfigureApiController.php
+++ b/framework/core/src/Event/ConfigureApiController.php
@@ -27,6 +27,15 @@ class ConfigureApiController
         $this->controller = $controller;
     }
 
+    /**
+     * @param string $controller
+     * @return bool
+     */
+    public function isController($controller)
+    {
+        return $this->controller instanceof $controller;
+    }
+
     /**
      * Set the serializer that will serialize data for the endpoint.
      *
@@ -40,11 +49,11 @@ class ConfigureApiController
     /**
      * Include the given relationship by default.
      *
-     * @param string $name
+     * @param string|array $name
      */
     public function addInclude($name)
     {
-        $this->controller->include[] = $name;
+        $this->controller->include = array_merge($this->controller->include, (array) $name);
     }
 
     /**
diff --git a/framework/core/src/Event/ConfigureClientView.php b/framework/core/src/Event/ConfigureClientView.php
index cb2a0d613..d492a7de4 100644
--- a/framework/core/src/Event/ConfigureClientView.php
+++ b/framework/core/src/Event/ConfigureClientView.php
@@ -64,9 +64,9 @@ class ConfigureClientView
         $this->view->addBootstrapper($bootstrapper);
     }
 
-    public function addTranslations(array $keys)
+    public function addTranslations($keys)
     {
-        foreach ($keys as $key) {
+        foreach ((array) $keys as $key) {
             $this->keys[] = $key;
         }
     }
diff --git a/framework/core/src/Event/GetApiRelationship.php b/framework/core/src/Event/GetApiRelationship.php
index 3453907c8..323cf0e63 100644
--- a/framework/core/src/Event/GetApiRelationship.php
+++ b/framework/core/src/Event/GetApiRelationship.php
@@ -44,4 +44,14 @@ class GetApiRelationship
         $this->serializer = $serializer;
         $this->relationship = $relationship;
     }
+
+    /**
+     * @param string $serializer
+     * @param string $relationship
+     * @return bool
+     */
+    public function isRelationship($serializer, $relationship)
+    {
+        return $this->serializer instanceof $serializer && $this->relationship === $relationship;
+    }
 }
diff --git a/framework/core/src/Event/GetModelRelationship.php b/framework/core/src/Event/GetModelRelationship.php
index 6d62c907c..f48cb55ad 100644
--- a/framework/core/src/Event/GetModelRelationship.php
+++ b/framework/core/src/Event/GetModelRelationship.php
@@ -37,4 +37,14 @@ class GetModelRelationship
         $this->model = $model;
         $this->relationship = $relationship;
     }
+
+    /**
+     * @param string $model
+     * @param string $relationship
+     * @return bool
+     */
+    public function isRelationship($model, $relationship)
+    {
+        return $this->model instanceof $model && $this->relationship === $relationship;
+    }
 }
diff --git a/framework/core/src/Event/PrepareApiAttributes.php b/framework/core/src/Event/PrepareApiAttributes.php
index 28d0a8aee..ef45499c1 100644
--- a/framework/core/src/Event/PrepareApiAttributes.php
+++ b/framework/core/src/Event/PrepareApiAttributes.php
@@ -41,6 +41,11 @@ class PrepareApiAttributes
      */
     public $attributes;
 
+    /**
+     * @var \Flarum\Core\User
+     */
+    public $actor;
+
     /**
      * @param AbstractSerializer $serializer The class doing the serializing.
      * @param object|array $model The model being serialized.
@@ -51,5 +56,15 @@ class PrepareApiAttributes
         $this->serializer = $serializer;
         $this->model = $model;
         $this->attributes = &$attributes;
+        $this->actor = $serializer->getActor();
+    }
+
+    /**
+     * @param string $serializer
+     * @return bool
+     */
+    public function isSerializer($serializer)
+    {
+        return $this->serializer instanceof $serializer;
     }
 }
diff --git a/framework/core/src/Event/PrepareApiData.php b/framework/core/src/Event/PrepareApiData.php
index 7dbfb1fe7..26d9b6d84 100644
--- a/framework/core/src/Event/PrepareApiData.php
+++ b/framework/core/src/Event/PrepareApiData.php
@@ -37,9 +37,15 @@ class PrepareApiData
     public $document;
 
     /**
-     * @param AbstractSerializeController $endpoint
+     * @var \Flarum\Core\User
+     */
+    public $actor;
+
+    /**
+     * @param AbstractSerializeController $controller
      * @param mixed $data
      * @param ServerRequestInterface $request
+     * @param Document $document
      */
     public function __construct(
         AbstractSerializeController $controller,
@@ -51,5 +57,15 @@ class PrepareApiData
         $this->data = &$data;
         $this->request = $request;
         $this->document = $document;
+        $this->actor = $request->getAttribute('actor');
+    }
+
+    /**
+     * @param string $controller
+     * @return bool
+     */
+    public function isController($controller)
+    {
+        return $this->controller instanceof $controller;
     }
 }