diff --git a/config/validator.pl b/config/validator.pl
new file mode 100644
index 0000000..6531608
--- /dev/null
+++ b/config/validator.pl
@@ -0,0 +1,9 @@
+use 5.014001;
+use warnings;
+use utf8;
+
+return +{
+    param_message => {
+        email => 'メールアドレス',
+    },
+};
diff --git a/lib/Xpost/Validator.pm b/lib/Xpost/Validator.pm
new file mode 100644
index 0000000..37dd04d
--- /dev/null
+++ b/lib/Xpost/Validator.pm
@@ -0,0 +1,46 @@
+use 5.014001;
+use warnings;
+package Xpost::Validator {
+    use Amon2;
+    use Amon2::Config::Simple;
+    use FormValidator::Lite qw/
+        Date
+        Email
+    /;
+    use parent qw/-norequire FormValidator::Lite/;
+
+
+    sub new {
+        my $class = shift;
+        my $self = $class->SUPER::new(@_);
+        $self->load_function_message('ja');
+        $self->set_param_message(%{Amon2::Config::Simple->load(Amon2->context(), {env => 'validator'})->{param_message}});
+        return $self;
+    }
+
+   sub check {
+        my $self = shift;
+
+        my %args = @_;
+
+        $self->SUPER::check(@_);
+        return if $self->has_error;
+        $self->{valid_params} = {};
+        $self->{valid_params}->{$_} = 1 for (keys %args);
+    }
+
+
+
+    sub valid_data {
+        my $self = shift;
+
+        die "invalid request" if $self->has_error;
+
+        return {
+            map { $_ => $self->query->param($_) }
+              grep { defined $self->query->param($_) }
+                keys %{ $self->{valid_params} }
+        };
+    }
+}
+1;