diff --git a/README.md b/README.md
index a2922c8..375fa12 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,8 @@
 `b2-sdk-php` is a client library for working with Backblaze's B2 storage service. It aims to make using the service as
 easy as possible by exposing a clear API and taking influence from other SDKs that you may be familiar with.
 
+This package will **cache authorization request** for 1 hour so that you won't receive API Limit from B2.
+
 ### Credits
 
 Forked from [RunCloudIO](https://github.com/RunCloudIO/b2-sdk-php), based on the original by [Chris White](https://github.com/cwhite92/b2-sdk-php).
diff --git a/composer.json b/composer.json
index 795ee73..e055222 100644
--- a/composer.json
+++ b/composer.json
@@ -26,7 +26,10 @@
     ],
     "require": {
         "php": ">=5.6.0",
-        "guzzlehttp/guzzle": "^6.1"
+        "guzzlehttp/guzzle": "^6.1",
+        "illuminate/cache": ">=5.1.0",
+        "illuminate/container": ">=5.1.0",
+        "illuminate/filesystem": ">=5.1.0"
     },
     "require-dev": {
         "phpunit/phpunit": "4.8.*"
diff --git a/src/Cache/.gitignore b/src/Cache/.gitignore
new file mode 100644
index 0000000..d6b7ef3
--- /dev/null
+++ b/src/Cache/.gitignore
@@ -0,0 +1,2 @@
+*
+!.gitignore
diff --git a/src/Client.php b/src/Client.php
index d0a3e51..d1cba81 100644
--- a/src/Client.php
+++ b/src/Client.php
@@ -2,14 +2,19 @@
 
 namespace ChrisWhite\B2;
 
+use ChrisWhite\B2\Exceptions\CacheException;
 use ChrisWhite\B2\Exceptions\NotFoundException;
 use ChrisWhite\B2\Exceptions\ValidationException;
 use ChrisWhite\B2\Http\Client as HttpClient;
+use Illuminate\Cache\CacheManager;
+use Illuminate\Container\Container;
+use Illuminate\Filesystem\Filesystem;
 
 class Client
 {
     protected $accountId;
     protected $applicationKey;
+    protected $cache;
 
     protected $authToken;
     protected $apiUrl;
@@ -45,9 +50,34 @@ public function __construct($accountId, $applicationKey, array $options = [])
             $this->client = new HttpClient(['exceptions' => false]);
         }
 
+        // Initialize cache
+        $this->createCacheContainer();
+
         $this->authorizeAccount();
     }
 
+    private function createCacheContainer()
+    {
+        $container           = new Container;
+        $container['config'] = array(
+            'cache.default'     => 'file',
+            'cache.stores.file' => array(
+                'driver' => 'file',
+                'path'   => __DIR__ . '/Cache',
+            ),
+        );
+        $container['files'] = new Filesystem;
+
+        try {
+            $cacheManager = new CacheManager($container);
+            $this->cache  = $cacheManager->store();
+        } catch (\Exception $e) {
+            throw new CacheException(
+                $e->getMessage()
+            );
+        }
+    }
+
     /**
      * Create a bucket with the given name and type.
      *
@@ -452,14 +482,22 @@ public function listFileVersions(array $options)
      */
     protected function authorizeAccount()
     {
-        $response = $this->client->request('GET', 'https://api.backblazeb2.com/b2api/v1/b2_authorize_account', [
-            'auth' => [$this->accountId, $this->applicationKey],
-        ]);
+
+        $client         = $this->client;
+        $accountId      = $this->accountId;
+        $applicationKey = $this->applicationKey;
+
+        $response = $this->cache->remember( 'RunCloud-B2-SDK-Authorization', 60, function () use ($client, $accountId, $applicationKey ) {
+            return $client->request( 'GET', 'https://api.backblazeb2.com/b2api/v1/b2_authorize_account', array(
+                'auth' => [ $accountId, $applicationKey ],
+            ));
+        });
 
         $this->authToken           = $response['authorizationToken'];
         $this->apiUrl              = $response['apiUrl'] . '/b2api/v1';
         $this->downloadUrl         = $response['downloadUrl'];
         $this->recommendedPartSize = $response['recommendedPartSize'];
+
     }
 
     /**
diff --git a/src/Exceptions/CacheException.php b/src/Exceptions/CacheException.php
new file mode 100644
index 0000000..83b4545
--- /dev/null
+++ b/src/Exceptions/CacheException.php
@@ -0,0 +1,5 @@
+<?php
+namespace ChrisWhite\B2\Exceptions;
+
+class CacheException extends \Exception {
+}