diff --git a/actionpack/lib/abstract_controller/rendering.rb b/actionpack/lib/abstract_controller/rendering.rb
index 6bfe0a361f562..93ded404d6224 100644
--- a/actionpack/lib/abstract_controller/rendering.rb
+++ b/actionpack/lib/abstract_controller/rendering.rb
@@ -41,6 +41,9 @@ def render_to_string(*args, &block)
     def render_to_body(options = {})
     end
 
+    # Normalize arguments, options and then delegates render_to_body and
+    # sticks the result in self.response_body.
+    # :api: public
     def render(*args, &block)
     end
 
diff --git a/actionview/lib/action_view/rendering.rb b/actionview/lib/action_view/rendering.rb
index ee7cc4e470191..9d8f316a1170a 100644
--- a/actionview/lib/action_view/rendering.rb
+++ b/actionview/lib/action_view/rendering.rb
@@ -71,24 +71,28 @@ def view_context
     end
 
     # Returns an object that is able to render templates.
+    # :api: private
     def view_renderer
       @_view_renderer ||= ActionView::Renderer.new(lookup_context)
     end
 
-    # Normalize arguments, options and then delegates render_to_body and
-    # sticks the result in self.response_body.
+    # Render template to response_body
+    # :api: public
     def render(*args, &block)
       super
       options = _normalize_render(*args, &block)
       self.response_body = render_to_body(options)
     end
 
+    # Raw rendering of a template to a string.
+    # :api: public
     def render_to_string(*args, &block)
       options = _normalize_render(*args, &block)
       render_to_body(options)
     end
 
     # Raw rendering of a template.
+    # :api: public
     def render_to_body(options = {})
       _process_options(options)
       _render_template(options)
@@ -117,6 +121,7 @@ def _normalize_render(*args, &block)
 
       # Normalize args by converting render "foo" to render :action => "foo" and
       # render "foo/bar" to render :file => "foo/bar".
+      # :api: private
       def _normalize_args(action=nil, options={})
         options = super(action, options)
         case action
@@ -135,6 +140,7 @@ def _normalize_args(action=nil, options={})
       end
 
       # Normalize options.
+      # :api: private
       def _normalize_options(options)
         options = super(options)
         if options[:partial] == true