diff --git a/composer.json b/composer.json
index e990f6817..1c4d69521 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
         "ext-openssl": "*",
         "pimple/pimple": "~3.0",
         "monolog/monolog": "^1.22",
-        "overtrue/socialite": ">=1.0.24",
+        "overtrue/socialite": ">=1.0.25",
         "doctrine/cache": "~1.6",
         "guzzlehttp/guzzle": "~6.2.1",
         "symfony/http-foundation": "~2.6|~2.7|~2.8|~3.0",
diff --git a/src/Foundation/Application.php b/src/Foundation/Application.php
index 87b4ebec2..08adf0ed3 100644
--- a/src/Foundation/Application.php
+++ b/src/Foundation/Application.php
@@ -296,4 +296,23 @@ private function initializeLogger()
 
         Log::setLogger($logger);
     }
+
+    /**
+     * Magic call.
+     *
+     * @param string $method
+     * @param array  $args
+     *
+     * @return mixed
+     *
+     * @throws \Exception
+     */
+    public function __call($method, $args)
+    {
+        if (is_callable([$this['fundamental.api'], $method])) {
+            return call_user_func_array([$this['fundamental.api'], $method], $args);
+        }
+
+        throw new \Exception("Call to undefined method {$method}()");
+    }
 }
diff --git a/src/Foundation/ServiceProviders/FundamentalServiceProvider.php b/src/Foundation/ServiceProviders/FundamentalServiceProvider.php
new file mode 100644
index 000000000..a7dc2e34c
--- /dev/null
+++ b/src/Foundation/ServiceProviders/FundamentalServiceProvider.php
@@ -0,0 +1,43 @@
+<?php
+
+/*
+ * This file is part of the overtrue/wechat.
+ *
+ * (c) overtrue <i@overtrue.me>
+ *
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+/**
+ * FundamentalServiceProvider.php.
+ *
+ * This file is part of the wechat.
+ *
+ * (c) overtrue <i@overtrue.me>
+ *
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace EasyWeChat\Foundation\ServiceProviders;
+
+use EasyWeChat\Fundamental\API;
+use Pimple\Container;
+use Pimple\ServiceProviderInterface;
+
+/**
+ * Class FundamentalServiceProvider.
+ */
+class FundamentalServiceProvider implements ServiceProviderInterface
+{
+    /**
+     * {@inheritdoc}.
+     */
+    public function register(Container $pimple)
+    {
+        $pimple['fundamental.api'] = function ($pimple) {
+            return new API($pimple['access_token']);
+        };
+    }
+}
diff --git a/src/Fundamental/API.php b/src/Fundamental/API.php
new file mode 100644
index 000000000..41718e22e
--- /dev/null
+++ b/src/Fundamental/API.php
@@ -0,0 +1,52 @@
+<?php
+
+/*
+ * This file is part of the overtrue/wechat.
+ *
+ * (c) overtrue <i@overtrue.me>
+ *
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+/**
+ * Fundamental API.
+ *
+ * @author    mingyoung <mingyoungcheung@gmail.com>
+ * @copyright 2017
+ *
+ * @see      https://github.com/overtrue
+ * @see      http://overtrue.me
+ */
+
+namespace EasyWeChat\Fundamental;
+
+use EasyWeChat\Core\AbstractAPI;
+
+class API extends AbstractAPI
+{
+    const API_CLEAR_QUOTA = 'https://api.weixin.qq.com/cgi-bin/clear_quota';
+    const API_CALLBACK_IP = 'https://api.weixin.qq.com/cgi-bin/getcallbackip';
+
+    /**
+     * Clear quota.
+     *
+     * @return \EasyWeChat\Support\Collection
+     */
+    public function clearQuota()
+    {
+        $appid = $this->getAccessToken()->getAppId();
+
+        return $this->parseJSON('json', [self::API_CLEAR_QUOTA, compact('appid')]);
+    }
+
+    /**
+     * Get wechat callback ip.
+     *
+     * @return \EasyWeChat\Support\Collection
+     */
+    public function getCallbackIp()
+    {
+        return $this->parseJSON('get', [self::API_CALLBACK_IP]);
+    }
+}
diff --git a/src/OfficialAccount/TemplateMessage/TemplateMessage.php b/src/OfficialAccount/TemplateMessage/TemplateMessage.php
index 9edbeb6d1..46dbf7abd 100644
--- a/src/OfficialAccount/TemplateMessage/TemplateMessage.php
+++ b/src/OfficialAccount/TemplateMessage/TemplateMessage.php
@@ -82,6 +82,20 @@ public function __construct(AccessToken $accessToken)
         $this->messageBackup = $this->message;
     }
 
+    /**
+     * Set default color.
+     *
+     * @param string $color example: #0f0f0f
+     *
+     * @return $this
+     */
+    public function defaultColor($color)
+    {
+        $this->defaultColor = $color;
+
+        return $this;
+    }
+
     /**
      * Set industry.
      *
diff --git a/src/Support/Log.php b/src/Support/Log.php
index fc52a17ec..e77de07c3 100644
--- a/src/Support/Log.php
+++ b/src/Support/Log.php
@@ -113,7 +113,7 @@ private static function createDefaultLogger()
     {
         $log = new Logger('EasyWeChat');
 
-        if (defined('PHPUNIT_RUNNING')) {
+        if (defined('PHPUNIT_RUNNING') || php_sapi_name() === 'cli') {
             $log->pushHandler(new NullHandler());
         } else {
             $log->pushHandler(new ErrorLogHandler());
diff --git a/tests/Fundamental/FundamentalAPITest.php b/tests/Fundamental/FundamentalAPITest.php
new file mode 100644
index 000000000..e94cc9e62
--- /dev/null
+++ b/tests/Fundamental/FundamentalAPITest.php
@@ -0,0 +1,54 @@
+<?php
+
+/*
+ * This file is part of the overtrue/wechat.
+ *
+ * (c) overtrue <i@overtrue.me>
+ *
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+use EasyWeChat\Fundamental\API;
+use EasyWeChat\Tests\TestCase;
+
+class FundamentalAPITest extends TestCase
+{
+    /**
+     * Test clearQuota().
+     */
+    public function testClearQuota()
+    {
+        $result = $this->make()->clearQuota();
+
+        $this->assertEquals('https://api.weixin.qq.com/cgi-bin/clear_quota', $result['api']);
+        $this->assertSame(['appid' => 'i-am-app-id'], $result['params']);
+    }
+
+    /**
+     * Test getCallbackIp().
+     */
+    public function testGetCallbackIp()
+    {
+        $result = $this->make()->getCallbackIp();
+
+        $this->assertEquals('https://api.weixin.qq.com/cgi-bin/getcallbackip', $result['api']);
+    }
+
+    private function make()
+    {
+        $accessToken = \Mockery::mock('EasyWeChat\Core\AccessToken', function ($mock) {
+            $mock->shouldReceive('getAppId')->andReturn('i-am-app-id');
+        });
+        $api = \Mockery::mock('EasyWeChat\Fundamental\API[parseJSON]', [$accessToken]);
+        $api->shouldReceive('parseJSON')->andReturnUsing(function ($api, $params) {
+            if (isset($params[1])) {
+                return ['api' => $params[0], 'params' => $params[1]];
+            }
+
+            return ['api' => $params[0]];
+        });
+
+        return $api;
+    }
+}