diff --git a/script/derekovecs-server b/script/derekovecs-server
index ef99ff6..6861f14 100755
--- a/script/derekovecs-server
+++ b/script/derekovecs-server
@@ -278,24 +278,34 @@
   $self->render(data => $calendar, format=>'text');
 };
 
+any '/getVocabSize' => sub {
+  my $self = shift;
+  $self->render(data => getVocabSize(), format=>'json');
+};
+
+any '*/getVocabSize' => sub {
+  my $self = shift;
+  $self->render(data => getVocabSize(), format=>'json');
+};
+
 any '/getVersion' => sub {
   my $self = shift;
-  $self->render(data => $VERSION, format=>'text');
+  $self->render(data => to_json($VERSION), format=>'json');
 };
 
 any '*/getVersion' => sub {
   my $self = shift;
-  $self->render(data => $VERSION, format=>'text');
+  $self->render(data => to_json($VERSION), format=>'json');
 };
 
 any '/getModelName' => sub {
   my $self = shift;
-  $self->render(data => $title, format=>'text');
+  $self->render(data => to_json($title), format=>'json');
 };
 
 any '*/getModelName' => sub {
   my $self = shift;
-  $self->render(data => $title, format=>'text');
+  $self->render(data => to_json($title), format=>'json');
 };
 
 get '*/img/*' => sub {