diff --git a/ykval-munin-responses.pl b/ykval-munin-responses.pl
new file mode 100755
index 0000000..dc3f6ce
--- /dev/null
+++ b/ykval-munin-responses.pl
@@ -0,0 +1,48 @@
+#!/usr/bin/perl
+#%# family=auto
+#%# capabilities=autoconf
+
+use strict;
+use warnings;
+
+my @types = qw/OK BAD_OTP MISSING_PARAMETER BACKEND_ERROR BAD_SIGNATURE DELAYED_OTP NO_SUCH_CLIENT NOT_ENOUGH_ANSWERS REPLAYED_REQUEST REPLAYED_OTP OPERATION_NOT_ALLOWED/;
+my $logfile = "/var/log/yubikey-val-server-php.log";
+
+if(@ARGV > 0) {
+  if($ARGV[0] eq "autoconf") {
+    print "yes\n";
+    exit 0;
+  } elsif($ARGV[0] eq "config") {
+    print "multigraph yk_responses\n";
+    print "graph_title YK-VAL response types\n";
+    print "graph_vlabel responses\n";
+    print "graph_category ykval\n";
+
+    foreach my $type (@types) {
+      print "${type}.label ${type}\n";
+      print "${type}.type DERIVE\n";
+      print "${type}.info Responses\n";
+      print "${type}.min 0\n";
+      print "${type}.draw LINE1\n";
+    }
+    exit 0
+  }
+  print "unknown command '${ARGV[0]}'\n";
+  exit 1
+}
+
+my %statuses = map { $_ => 0 } @types;
+
+my $reg = qr/status=([A-Z_]+)/;
+open (LOGFILE, "grep 'ykval-verify.*Response' $logfile |");
+while(<LOGFILE>) {
+  next unless /$reg/;
+  $statuses{$1}++;
+}
+close LOGFILE;
+
+print "multigraph yk_responses\n";
+foreach my $type (@types) {
+  print "${type}.value ${statuses{$type}}\n";
+}
+exit 0