diff --git a/web/yaamp/commands/CheckupCommand.php b/web/yaamp/commands/CheckupCommand.php
index 0a7c8ad..aae5cea 100644
--- a/web/yaamp/commands/CheckupCommand.php
+++ b/web/yaamp/commands/CheckupCommand.php
@@ -6,7 +6,7 @@
  *
  * To use this command, enter the following on the command line:
  * <pre>
- * php protected/yiic.php checkup
+ * php web/yaamp/yiic.php checkup
  * </pre>
  *
  * @property string $help The command description.
@@ -31,8 +31,8 @@ class CheckupCommand extends CConsoleCommand
 
 		if (isset($args[0])) {
 
-			echo "Yii checkup command\n";
-			echo "Usage: yiic checkup\n";
+			echo "Yiimp checkup command\n";
+			echo "Usage: yiimp checkup\n";
 			return 1;
 
 		} else {
@@ -44,7 +44,7 @@ class CheckupCommand extends CConsoleCommand
 
 			self::autolinkCoinsImages();
 
-			if (YAAMP_ALLOW_EXCHANGE == false)
+			if (!YAAMP_ALLOW_EXCHANGE)
 				self::cleanUserBalancesBTC();
 
 			echo "ok\n";
diff --git a/web/yaamp/commands/ExchangeCommand.php b/web/yaamp/commands/ExchangeCommand.php
new file mode 100644
index 0000000..7fdffc1
--- /dev/null
+++ b/web/yaamp/commands/ExchangeCommand.php
@@ -0,0 +1,100 @@
+<?php
+/**
+ * ExchangeCommand is a console command, to check private apis keys
+ *
+ * To use this command, enter the following on the command line:
+ * <pre>
+ * php web/yaamp/yiic.php exchange test
+ * </pre>
+ *
+ * @property string $help The command description.
+ *
+ */
+class ExchangeCommand extends CConsoleCommand
+{
+	protected $basePath;
+
+	/**
+	 * Execute the action.
+	 * @param array $args command line parameters specific for this command
+	 * @return integer non zero application exit code after printing help
+	 */
+	public function run($args)
+	{
+		$runner=$this->getCommandRunner();
+		$commands=$runner->commands;
+
+		$root = realpath(Yii::app()->getBasePath().DIRECTORY_SEPARATOR.'..');
+		$this->basePath = str_replace(DIRECTORY_SEPARATOR, '/', $root);
+
+		if (!isset($args[0])) {
+
+			echo "Yiimp exchange command\n";
+			echo "Usage: yiimp exchange test\n";
+			return 1;
+
+		} else if ($args[0] == 'test') {
+
+			$this->testApiKeys();
+
+			echo "ok\n";
+			return 0;
+		}
+	}
+
+	/**
+	 * Provides the command description.
+	 * @return string the command description.
+	 */
+	public function getHelp()
+	{
+		return parent::getHelp().'exchange';
+	}
+
+	public function testApiKeys()
+	{
+		require_once($this->basePath.'/yaamp/core/core.php');
+
+		if (!empty(EXCH_BITTREX_KEY)) {
+			$balance = bittrex_api_query('account/getbalance','&currency=BTC');
+			echo("bittrex btc: ".json_encode($balance->result)."\n");
+		}
+		if (!empty(EXCH_BLEUTRADE_KEY)) {
+			$balance = bleutrade_api_query('account/getbalances','&currencies=BTC');
+			echo("bleutrade btc: ".json_encode($balance->result)."\n");
+		}
+		if (!empty(EXCH_CCEX_KEY)) {
+			$ccex = new CcexAPI;
+			$balances = $ccex->getBalance();
+			if(!$balances || !isset($balances['return'])) echo "error\n";
+			else echo("c-cex btc: ".json_encode($balances['return'][1])."\n");
+		}
+		if (!empty(EXCH_CRYPTOPIA_KEY)) {
+			$balance = cryptopia_api_user('GetBalance',array("Currency"=>"BTC"));
+			echo("cryptopia btc: ".json_encode($balance->Data)."\n");
+		}
+		if (!empty(EXCH_CRYPTSY_KEY)) {
+			$info = cryptsy_api_query('getinfo');
+			if (!arraySafeVal($info,'success',0) || !is_array($info['return'])) echo "error\n";
+			else echo("cryptsy btc: ".json_encode($info['return']['balances_available']['BTC'])."\n");
+		}
+		if(!empty(EXCH_POLONIEX_KEY)) {
+			$poloniex = new poloniex;
+			$balance = $poloniex->get_available_balances();
+			echo("poloniex available : ".json_encode($balance)."\n");
+		}
+		if (!empty(EXCH_SAFECEX_KEY)) {
+			$balance = safecex_api_user('getbalance', "&symbol=BTC");
+			echo("safecex btc: ".json_encode($balance)."\n");
+		}
+		if (!empty(EXCH_YOBIT_KEY)) {
+			$info = yobit_api_query2('getInfo');
+			if (!arraySafeVal($info,'success',0) || !is_array($info['return'])) echo "error\n";
+			else echo("yobit btc: ".json_encode($info['return']['funds']['btc'])."\n");
+		}
+
+		// only one secret key
+		$balance = empoex_api_user('account/balance','BTC');
+		if ($balance) echo("empoex btc: ".json_encode($balance['available'])."\n");
+	}
+}
diff --git a/web/yaamp/core/trading/empoex_trading.php b/web/yaamp/core/trading/empoex_trading.php
index 4daf9cf..802a22b 100644
--- a/web/yaamp/core/trading/empoex_trading.php
+++ b/web/yaamp/core/trading/empoex_trading.php
@@ -8,7 +8,7 @@ function doEmpoexTrading($quick=false)
 	$balances = empoex_api_user('account/balance','BTC');
 	// {"available":[{"Coin":"BTC","Amount":"0.00102293"}],"pending":[],"held":[]}
 
-        if(!$balances || !isset($balances->available) || empty($balances->available)) return;
+	if(!$balances || !isset($balances->available) || empty($balances->available)) return;
 
 	$savebalance = getdbosql('db_balances', "name='empoex'");
 	$savebalance->balance = 0;