diff --git a/kms.php b/kms.php
index b7e9716..9d31135 100755
--- a/kms.php
+++ b/kms.php
@@ -29,7 +29,21 @@ $VLMCSD = array( // vlmcsd process
     'pidFile' => '/run/vlmcsd.pid',
 );
 
+$HELP_MSG = "
+  kms-server ($VERSION)
+
+  Project: https://github.com/dnomd343/kms-server.git
+
+    --debug         Enable debug mode
+    --kms-port      Specify kms listen port
+    --http-port     Specify http listen port
+    --disable-http  Disable http service
+    --version       Show version info
+    --help          Show help message
+\n";
+
 function load_nginx_config(int $kms_port, int $http_port): void {
+    global $VERSION;
     $nginx_config = "server {
     listen $http_port;
     listen [::]:$http_port ipv6only=on;
@@ -44,6 +58,7 @@ function load_nginx_config(int $kms_port, int $http_port): void {
     }
 
     location / {
+        set \$cli_mode false;
         include fastcgi_params;
         fastcgi_pass unix:/run/php-fpm.sock;
         if (\$http_user_agent ~* (curl|wget)) {
@@ -51,6 +66,7 @@ function load_nginx_config(int $kms_port, int $http_port): void {
         }
         fastcgi_param KMS_PORT $kms_port;
         fastcgi_param KMS_CLI \$cli_mode;
+        fastcgi_param KMS_VER $VERSION;
         fastcgi_param SCRIPT_FILENAME /kms-server/src/Route.php;
     }\n}\n";
     logging::debug("Nginx configure ->\n" . $nginx_config);
@@ -169,6 +185,16 @@ pcntl_signal(SIGQUIT, function() { // receive SIGQUIT signal
     exit;
 });
 
+if (in_array('-v', $argv) || in_array('--version', $argv)) {
+    echo "\033[33mkms-server\033[0m => \033[36m$VERSION\033[0m\n"; // show version info
+    exit;
+}
+
+if (in_array('-h', $argv) || in_array('--help', $argv)) {
+    echo $HELP_MSG; // show help message
+    exit;
+}
+
 logging::info('Loading kms-server (' . $VERSION . ')');
 load_params();
 load_vlmcsd_command($KMS_PORT);
diff --git a/src/Route.php b/src/Route.php
index 374142a..4bb8cc3 100644
--- a/src/Route.php
+++ b/src/Route.php
@@ -19,6 +19,18 @@ if ($url == '/json') { // show keys in json format
     return; // skip following process
 }
 
+if ($url == '/version') { // show version info
+    if ($isCli) { // cli mode
+        echo "\033[33mkms-server\033[0m => \033[36m" . getenv('KMS_VER') . "\033[0m\n";
+    } else {
+        mimeJson();
+        echo json_encode(array(
+            'version' => getenv('KMS_VER')
+        ));
+    }
+    return; // skip following process
+}
+
 $isGbk = false; // utf-8 or gbk
 $isJson = false; // json output
 if ($url == '/win/gbk' or $url == '/win-server/gbk') {