diff --git a/app/views/notifications/trays/show.json.jbuilder b/app/views/notifications/trays/show.json.jbuilder
new file mode 100644
index 000000000..0c2928cef
--- /dev/null
+++ b/app/views/notifications/trays/show.json.jbuilder
@@ -0,0 +1 @@
+json.array! @notifications, partial: "notifications/notification", as: :notification
diff --git a/test/controllers/notifications/trays_controller_test.rb b/test/controllers/notifications/trays_controller_test.rb
index 07034fff0..d0916e305 100644
--- a/test/controllers/notifications/trays_controller_test.rb
+++ b/test/controllers/notifications/trays_controller_test.rb
@@ -11,4 +11,13 @@ class Notifications::TraysControllerTest < ActionDispatch::IntegrationTest
     assert_response :success
     assert_select "div", text: /Layout is broken/
   end
+
+  test "show as JSON" do
+    expected_ids = users(:kevin).notifications.unread.ordered.limit(100).pluck(:id)
+
+    get tray_notifications_path(format: :json)
+
+    assert_response :success
+    assert_equal expected_ids, @response.parsed_body.map { |notification| notification["id"] }
+  end
 end