diff --git a/lib/NGCP/Panel/Controller/API/DomainPreferenceDefs.pm b/lib/NGCP/Panel/Controller/API/DomainPreferenceDefs.pm
new file mode 100644
index 0000000000..5385f4cb89
--- /dev/null
+++ b/lib/NGCP/Panel/Controller/API/DomainPreferenceDefs.pm
@@ -0,0 +1,136 @@
+package NGCP::Panel::Controller::API::DomainPreferenceDefs;
+use Sipwise::Base;
+use namespace::sweep;
+use boolean qw(true);
+use Data::HAL qw();
+use Data::HAL::Link qw();
+use HTTP::Headers qw();
+use HTTP::Status qw(:constants);
+use MooseX::ClassAttribute qw(class_has);
+use NGCP::Panel::Utils::DateTime;
+use Path::Tiny qw(path);
+use Safe::Isa qw($_isa);
+use JSON::Types qw();
+BEGIN { extends 'Catalyst::Controller::ActionRole'; }
+require Catalyst::ActionRole::ACL;
+require Catalyst::ActionRole::CheckTrailingSlash;
+require Catalyst::ActionRole::HTTPMethods;
+require Catalyst::ActionRole::RequireSSL;
+
+with 'NGCP::Panel::Role::API';
+
+class_has('resource_name', is => 'ro', default => 'domainpreferencedefs');
+class_has('dispatch_path', is => 'ro', default => '/api/domainpreferencedefs/');
+class_has('relation', is => 'ro', default => 'http://purl.org/sipwise/ngcp-api/#rel-domainpreferencedefs');
+
+__PACKAGE__->config(
+    action => {
+        map { $_ => {
+            ACLDetachTo => '/api/root/invalid_user',
+            AllowedRole => 'api_admin',
+            Args => 0,
+            Does => [qw(ACL CheckTrailingSlash RequireSSL)],
+            Method => $_,
+            Path => __PACKAGE__->dispatch_path,
+        } } @{ __PACKAGE__->allowed_methods }
+    },
+    action_roles => [qw(HTTPMethods)],
+);
+
+sub auto :Private {
+    my ($self, $c) = @_;
+
+    $self->set_body($c);
+    $self->log_request($c);
+}
+
+sub GET :Allow {
+    my ($self, $c) = @_;
+    {
+        my @links;
+        push @links,
+            Data::HAL::Link->new(
+                relation => 'curies',
+                href => 'http://purl.org/sipwise/ngcp-api/#rel-{rel}',
+                name => 'ngcp',
+                templated => true,
+            ),
+            Data::HAL::Link->new(relation => 'profile', href => 'http://purl.org/sipwise/ngcp-api/'),
+            Data::HAL::Link->new(relation => 'self', href => sprintf('%s', $self->dispatch_path));
+
+        my $hal = Data::HAL->new(
+            links => [@links],
+        );
+
+        my $preferences = $c->model('DB')->resultset('voip_preferences')->search({
+            internal => 0,
+            dom_pref => 1,
+        });
+        my $resource = {};
+        for my $pref($preferences->all) {
+            my $fields = { $pref->get_inflated_columns };
+            # remove internal fields
+            for my $del(qw/type attribute expose_to_customer internal peer_pref usr_pref dom_pref voip_preference_groups_id id modify_timestamp/) {
+                delete $fields->{$del};
+            }
+            $fields->{max_occur} = int($fields->{max_occur});
+            $fields->{read_only} = JSON::Types::bool($fields->{read_only});
+            if($fields->{data_type} eq "enum") {
+                my @enums = $pref->voip_preferences_enums->search({
+                    dom_pref => 1,
+                })->all;
+                $fields->{enum_values} = [];
+                foreach my $enum(@enums) {
+                    my $efields = { $enum->get_inflated_columns };
+                    for my $del(qw/id preference_id usr_pref dom_pref peer_pref/) {
+                        delete $efields->{$del};
+                    }
+                    $efields->{default_val} = JSON::Types::bool($efields->{default_val});
+                    push @{ $fields->{enum_values} }, $efields;
+                }
+            }
+            $resource->{$pref->attribute} = $fields;
+        }
+        $hal->resource($resource);
+
+        my $rname = $self->resource_name;
+        my $response = HTTP::Response->new(HTTP_OK, undef, HTTP::Headers->new(
+            (map { # XXX Data::HAL must be able to generate links with multiple relations
+                s|rel="(http://purl.org/sipwise/ngcp-api/#rel-$rname)"|rel="item $1"|;
+                s/rel=self/rel="collection self"/;
+                $_
+            } $hal->http_headers),
+        ), $hal->as_json);
+        $c->response->headers($response->headers);
+        $c->response->body($response->content);
+        return;
+    }
+    return;
+}
+
+sub HEAD :Allow {
+    my ($self, $c) = @_;
+    $c->forward(qw(GET));
+    $c->response->body(q());
+    return;
+}
+
+sub OPTIONS :Allow {
+    my ($self, $c) = @_;
+    my $allowed_methods = $self->allowed_methods;
+    $c->response->headers(HTTP::Headers->new(
+        Allow => $allowed_methods->join(', '),
+        Accept_Post => 'application/hal+json; profile=http://purl.org/sipwise/ngcp-api/#rel-'.$self->resource_name,
+    ));
+    $c->response->content_type('application/json');
+    $c->response->body(JSON::to_json({ methods => $allowed_methods })."\n");
+    return;
+}
+
+sub end : Private {
+    my ($self, $c) = @_;
+
+    $self->log_response($c);
+}
+
+# vim: set tabstop=4 expandtab: