diff --git a/composer.json b/composer.json
index baea060..8e7fef3 100644
--- a/composer.json
+++ b/composer.json
@@ -11,11 +11,7 @@
   ],
   "require": {
     "php": ">=5.4.0",
-    "guzzlehttp/guzzle": "6.0.*"
-  },
-  "require-dev": {
-    "phpunit/phpunit": "~4.0",
-    "phpspec/phpspec": "~2.1"
+    "guzzlehttp/guzzle": "^6.0"
   },
   "autoload": {
     "psr-0": {
diff --git a/src/Prettus/Moip/Subscription/Contracts/Renderable.php b/src/Prettus/Moip/Subscription/Contracts/Renderable.php
new file mode 100644
index 0000000..2800d5a
--- /dev/null
+++ b/src/Prettus/Moip/Subscription/Contracts/Renderable.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace Prettus\Moip\Subscription\Contracts;
+
+/**
+ * Interface Renderable
+ * @package Prettus\Moip\Subscription\Contracts
+ */
+interface Renderable
+{
+    /**
+     * Collection to be formatted
+     *
+     * @return mixed
+     */
+    public function format();
+}
\ No newline at end of file
diff --git a/src/Prettus/Moip/Subscription/MoipClient.php b/src/Prettus/Moip/Subscription/MoipClient.php
index e00d9d3..9169c2e 100644
--- a/src/Prettus/Moip/Subscription/MoipClient.php
+++ b/src/Prettus/Moip/Subscription/MoipClient.php
@@ -2,8 +2,12 @@
 
 use GuzzleHttp\Client;
 use GuzzleHttp\Exception\ClientException;
-use Psr\Http\Message\ResponseInterface;
+use Prettus\Moip\Subscription\Webservice\RenderToJson;
+use Prettus\Moip\Subscription\Webservice\ResourceUtils as Utils;
+use Prettus\Moip\Subscription\Webservice\Webservice;
 use Prettus\Moip\Subscription\Contracts\MoipHttpClient;
+use GuzzleHttp\Exception\RequestException;
+use Psr\Http\Message\ResponseInterface;
 
 /**
  * Class MoipClient
@@ -11,6 +15,8 @@
  */
 class MoipClient implements MoipHttpClient {
 
+    use Utils;
+
     /**
      * @var Client
      */
@@ -49,6 +55,9 @@ class MoipClient implements MoipHttpClient {
      */
     protected $apiUrl   = "https://{environment}.moip.com.br";
 
+    /**
+     * @var array
+     */
     protected $requestOptions = [];
 
     /**
@@ -58,7 +67,7 @@ class MoipClient implements MoipHttpClient {
      * @param $apiKey
      * @param string $environment
      */
-    public function __construct( $apiToken, $apiKey, $environment = MoipHttpClient::PRODUCTION ){
+    public function __construct($apiToken, $apiKey, $environment = MoipHttpClient::PRODUCTION){
 
         $this->setCredential(['token'=>$apiToken,'key'=>$apiKey]);
         $this->setEnvironment($environment);
@@ -84,6 +93,7 @@ public function __construct( $apiToken, $apiKey, $environment = MoipHttpClient::
     public function setCredential($credentials = []){
         $this->apiKey   = $credentials['key'];
         $this->apiToken = $credentials['token'];
+
         return $this;
     }
 
@@ -121,13 +131,23 @@ public function getApiVersion(){
      *
      * @param null $url
      * @param array $options
+     *
      * @throws ClientException
-     * @return string
+     * @return array
      */
     public function get($url = null, $options = [])
     {
-        $response = $this->client->get($url, $this->getOptions($options));
-        return $response->getBody()->getContents();
+        try {
+            $response = $this->client->get($url, $this->getOptions($options));
+
+            return Utils::formatInJson( $response );
+        } catch(RequestException $e) {
+            if ($e->hasResponse()) {
+                return $this->composeError($e->getResponse());
+            }
+
+            throw $e;
+        }
     }
 
     /**
@@ -135,13 +155,23 @@ public function get($url = null, $options = [])
      *
      * @param null $url
      * @param array $options
+     *
      * @throws ClientException
-     * @return string
+     * @return string|array
      */
     public function post($url = null, $options = [])
     {
-        $response = $this->client->post($url, $this->getOptions($options));
-        return $response->getBody()->getContents();
+        try {
+            $response = $this->client->post($url, $this->getOptions($options));
+
+            return $response->getBody()->getContents();
+        } catch(RequestException $e) {
+            if ($e->hasResponse()) {
+                return $this->composeError($e->getResponse());
+            }
+
+            throw $e;
+        }
     }
 
     /**
@@ -149,13 +179,23 @@ public function post($url = null, $options = [])
      *
      * @param null $url
      * @param array $options
+     *
      * @throws ClientException
-     * @return string
+     * @return string|array
      */
     public function put($url = null, $options = [])
     {
-        $response = $this->client->put($url, $this->getOptions($options) );
-        return $response->getBody()->getContents();
+        try {
+            $response = $this->client->put($url, $this->getOptions($options) );
+
+            return $response->getBody()->getContents();
+        } catch(RequestException $e) {
+            if ($e->hasResponse()) {
+                return $this->composeError($e->getResponse());
+            }
+
+            throw $e;
+        }
     }
 
     /**
@@ -163,13 +203,23 @@ public function put($url = null, $options = [])
      *
      * @param null $url
      * @param array $options
+     *
      * @throws ClientException
-     * @return string
+     * @return string|array
      */
     public function delete($url = null, $options = [])
     {
-        $response = $this->client->delete($url, $this->getOptions($options));
-        return $response->getBody()->getContents();
+        try {
+            $response = $this->client->delete($url, $this->getOptions($options));
+
+            return $response->getBody()->getContents();
+        } catch(RequestException $e) {
+            if ($e->hasResponse()) {
+                return $this->composeError($e->getResponse());
+            }
+
+            throw $e;
+        }
     }
 
     /**
@@ -179,4 +229,28 @@ public function delete($url = null, $options = [])
     public function getOptions($options = []){
         return array_merge($this->requestOptions, $options);
     }
+
+    /**
+     * Monta um array contendo os erros da requisição
+     *
+     * @param ResponseInterface $response
+     *
+     * @return array
+     */
+    private function composeError(ResponseInterface $response)
+    {
+        $error = array(
+            'error' => true,
+            'http_code' => $response->getStatusCode(),
+            'http_reason' => $response->getReasonPhrase()
+        );
+
+        $message = Utils::formatInJson($response);
+
+        if ($message) {
+            $error = $error + $message;
+        }
+
+        return $error;
+    }
 }
\ No newline at end of file
diff --git a/src/Prettus/Moip/Subscription/Resources/Customers.php b/src/Prettus/Moip/Subscription/Resources/Customers.php
index c58ef47..b824388 100644
--- a/src/Prettus/Moip/Subscription/Resources/Customers.php
+++ b/src/Prettus/Moip/Subscription/Resources/Customers.php
@@ -35,7 +35,7 @@ public function __construct(MoipHttpClient $client){
      * @param bool $new_vault
      * @param array $options
      * @throws ClientException
-     * @return ResponseInterface
+     * @return mixed
      */
     public function create(array $data, $new_vault = false, array $options = []){
 
@@ -55,7 +55,7 @@ public function create(array $data, $new_vault = false, array $options = []){
      *
      * @param array $options
      * @throws ClientException
-     * @return ResponseInterface
+     * @return mixed
      */
     public function all(array $options = []){
 
@@ -73,7 +73,7 @@ public function all(array $options = []){
      * @param $code
      * @param array $options
      * @throws ClientException
-     * @return ResponseInterface
+     * @return mixed
      */
     public function find($code, array $options = []){
 
@@ -93,7 +93,7 @@ public function find($code, array $options = []){
      * @param array $data
      * @param array $options
      * @throws ClientException
-     * @return ResponseInterface
+     * @return mixed
      */
     public function update($code, array $data, array $options = []){
 
@@ -106,7 +106,6 @@ public function update($code, array $data, array $options = []){
         $options = array_merge($options,['body'=>json_encode($data)]);
 
         return $this->client->put($url, $options);
-
     }
 
     /**
@@ -114,7 +113,7 @@ public function update($code, array $data, array $options = []){
      * @param array $data
      * @param array $options
      * @throws ClientException
-     * @return ResponseInterface
+     * @return mixed
      */
     public function updateBillingInfo($code, array $data, array $options = []){
 
diff --git a/src/Prettus/Moip/Subscription/Resources/Invoices.php b/src/Prettus/Moip/Subscription/Resources/Invoices.php
index 72364a1..cdb7d3f 100644
--- a/src/Prettus/Moip/Subscription/Resources/Invoices.php
+++ b/src/Prettus/Moip/Subscription/Resources/Invoices.php
@@ -3,7 +3,6 @@
 use GuzzleHttp\Exception\ClientException;
 use Prettus\Moip\Subscription\Contracts\MoipHttpClient;
 use Prettus\Moip\Subscription\ResourceUtils;
-use Psr\Http\Message\ResponseInterface;
 
 /**
  * Class Invoices
@@ -31,7 +30,7 @@ public function __construct(MoipHttpClient $client){
      * @param $code
      * @param array $options
      * @throws ClientException
-     * @return ResponseInterface
+     * @return mixed
      */
     public function find($code, array $options = []){
 
@@ -50,7 +49,7 @@ public function find($code, array $options = []){
      * @param $code
      * @param array $options
      * @throws ClientException
-     * @return ResponseInterface
+     * @return mixed
      */
     public function payments($code, array $options = []){
 
@@ -61,7 +60,6 @@ public function payments($code, array $options = []){
         ]);
 
         return $this->client->get($url, $options);
-
     }
 
     /**
@@ -70,7 +68,7 @@ public function payments($code, array $options = []){
      * @param $code
      * @param array $options
      * @throws ClientException
-     * @return ResponseInterface
+     * @return mixed
      */
     public function retryPayment($code, array $options = []){
 
@@ -81,6 +79,5 @@ public function retryPayment($code, array $options = []){
         ]);
 
         return $this->client->get($url, $options);
-
     }
 }
\ No newline at end of file
diff --git a/src/Prettus/Moip/Subscription/Resources/Payments.php b/src/Prettus/Moip/Subscription/Resources/Payments.php
index ee0ead5..2b72be1 100644
--- a/src/Prettus/Moip/Subscription/Resources/Payments.php
+++ b/src/Prettus/Moip/Subscription/Resources/Payments.php
@@ -3,7 +3,6 @@
 use GuzzleHttp\Exception\ClientException;
 use Prettus\Moip\Subscription\Contracts\MoipHttpClient;
 use Prettus\Moip\Subscription\ResourceUtils;
-use Psr\Http\Message\ResponseInterface;
 
 /**
  * Class Payments
@@ -34,7 +33,7 @@ public function __construct(MoipHttpClient $client){
      * @param $code
      * @param array $options
      * @throws ClientException
-     * @return ResponseInterface
+     * @return mixed
      */
     public function find($code, array $options = []){
 
@@ -46,5 +45,4 @@ public function find($code, array $options = []){
 
         return $this->client->get($url, $options);
     }
-
 }
\ No newline at end of file
diff --git a/src/Prettus/Moip/Subscription/Resources/Plans.php b/src/Prettus/Moip/Subscription/Resources/Plans.php
index 9ade03a..ab2a047 100644
--- a/src/Prettus/Moip/Subscription/Resources/Plans.php
+++ b/src/Prettus/Moip/Subscription/Resources/Plans.php
@@ -3,7 +3,7 @@
 use GuzzleHttp\Exception\ClientException;
 use Prettus\Moip\Subscription\Contracts\MoipHttpClient;
 use Prettus\Moip\Subscription\ResourceUtils;
-use Psr\Http\Message\ResponseInterface;
+use Symfony\Component\HttpFoundation\Response;
 
 /**
  * Class Plans
@@ -31,7 +31,7 @@ public function __construct(MoipHttpClient $client){
      * @param array $data
      * @param array $options
      * @throws ClientException
-     * @return ResponseInterface
+     * @return mixed
      */
     public function create(array $data, array $options = []){
 
@@ -50,7 +50,7 @@ public function create(array $data, array $options = []){
      *
      * @param array $options
      * @throws ClientException
-     * @return ResponseInterface
+     * @return mixed
      */
     public function all(array $options = []){
 
@@ -68,7 +68,7 @@ public function all(array $options = []){
      * @param $code
      * @param array $options
      * @throws ClientException
-     * @return ResponseInterface
+     * @return mixed
      */
     public function find($code, array $options = []){
 
@@ -88,7 +88,7 @@ public function find($code, array $options = []){
      * @param array $data
      * @param array $options
      * @throws ClientException
-     * @return ResponseInterface
+     * @return mixed
      */
     public function update($code, array $data, array $options = []){
 
@@ -101,7 +101,6 @@ public function update($code, array $data, array $options = []){
         $options = array_merge($options,['body'=>json_encode($data)]);
 
         return $this->client->put($url, $options);
-
     }
 
     /**
@@ -110,7 +109,7 @@ public function update($code, array $data, array $options = []){
      * @param $code
      * @param array $options
      * @throws ClientException
-     * @return ResponseInterface
+     * @return mixed
      */
     public function active($code, array $options = []){
         return $this->toogleActive($code, "activate", $options);
@@ -122,7 +121,7 @@ public function active($code, array $options = []){
      * @param $code
      * @param array $options
      * @throws ClientException
-     * @return ResponseInterface
+     * @return mixed
      */
     public function deactivate($code, array $options = []){
         return $this->toogleActive($code, "inactivate", $options);
@@ -135,7 +134,7 @@ public function deactivate($code, array $options = []){
      * @param $status [activate, inactivate]
      * @param array $options
      * @throws ClientException
-     * @return ResponseInterface
+     * @return mixed
      */
     protected function toogleActive($code, $status, array $options = []){
 
diff --git a/src/Prettus/Moip/Subscription/Resources/Preferences.php b/src/Prettus/Moip/Subscription/Resources/Preferences.php
index f9331a5..0d3c63a 100644
--- a/src/Prettus/Moip/Subscription/Resources/Preferences.php
+++ b/src/Prettus/Moip/Subscription/Resources/Preferences.php
@@ -3,7 +3,6 @@
 use GuzzleHttp\Exception\ClientException;
 use Prettus\Moip\Subscription\Contracts\MoipHttpClient;
 use Prettus\Moip\Subscription\ResourceUtils;
-use Psr\Http\Message\ResponseInterface;
 
 /**
  * Class Preferences
@@ -31,7 +30,7 @@ public function __construct(MoipHttpClient $client){
      * @param array $data
      * @param array $options
      * @throws ClientException
-     * @return ResponseInterface
+     * @return mixed
      */
     public function setPreferences(array $data, array $options = []){
 
@@ -52,7 +51,7 @@ public function setPreferences(array $data, array $options = []){
      * @param array $data
      * @param array $options
      * @throws ClientException
-     * @return ResponseInterface
+     * @return mixed
      */
     public function setPreferencesRetry(array $data, array $options = []){
 
diff --git a/src/Prettus/Moip/Subscription/Resources/Subscriptions.php b/src/Prettus/Moip/Subscription/Resources/Subscriptions.php
index fefed36..853761e 100644
--- a/src/Prettus/Moip/Subscription/Resources/Subscriptions.php
+++ b/src/Prettus/Moip/Subscription/Resources/Subscriptions.php
@@ -3,7 +3,6 @@
 use GuzzleHttp\Exception\ClientException;
 use Prettus\Moip\Subscription\Contracts\MoipHttpClient;
 use Prettus\Moip\Subscription\ResourceUtils;
-use Psr\Http\Message\ResponseInterface;
 
 /**
  * Class Subscriptions
@@ -31,7 +30,7 @@ public function __construct(MoipHttpClient $client){
      * @param array $data
      * @param bool $new_customer
      * @param array $options
-     * @return ResponseInterface
+     * @return mixed
      */
     public function create(array $data, $new_customer = false, array $options = []){
 
@@ -51,7 +50,7 @@ public function create(array $data, $new_customer = false, array $options = []){
      *
      * @param array $options
      * @throws ClientException
-     * @return ResponseInterface
+     * @return mixed
      */
     public function all(array $options = []){
 
@@ -69,7 +68,7 @@ public function all(array $options = []){
      * @param $code
      * @param array $options
      * @throws ClientException
-     * @return ResponseInterface
+     * @return mixed
      */
     public function find($code, array $options = []){
 
@@ -89,7 +88,7 @@ public function find($code, array $options = []){
      * @param array $data
      * @param array $options
      * @throws ClientException
-     * @return ResponseInterface
+     * @return mixed
      */
     public function update($code, array $data, array $options = []){
 
@@ -102,7 +101,6 @@ public function update($code, array $data, array $options = []){
         $options = array_merge($options,['body'=>json_encode($data)]);
 
         return $this->client->put($url, $options);
-
     }
 
     /**
@@ -111,7 +109,7 @@ public function update($code, array $data, array $options = []){
      * @param $code
      * @param array $options
      * @throws ClientException
-     * @return ResponseInterface
+     * @return mixed
      */
     public function invoices($code, array $options = []){
 
@@ -122,7 +120,6 @@ public function invoices($code, array $options = []){
         ]);
 
         return $this->client->get($url, $options);
-
     }
 
     /**
@@ -131,7 +128,7 @@ public function invoices($code, array $options = []){
      * @param $code
      * @param array $options
      * @throws ClientException
-     * @return ResponseInterface
+     * @return mixed
      */
     public function suspend($code, array $options = []){
         return $this->toogleStatus($code, "suspend", $options);
@@ -143,7 +140,7 @@ public function suspend($code, array $options = []){
      * @param $code
      * @param array $options
      * @throws ClientException
-     * @return ResponseInterface
+     * @return mixed
      */
     public function activate($code, array $options = []){
         return $this->toogleStatus($code, "activate", $options);
@@ -155,7 +152,7 @@ public function activate($code, array $options = []){
      * @param $code
      * @param array $options
      * @throws ClientException
-     * @return ResponseInterface
+     * @return mixed
      */
     public function cancel($code, array $options = []){
         return $this->toogleStatus($code, "cancel", $options);
@@ -168,7 +165,7 @@ public function cancel($code, array $options = []){
      * @param $status [activate, inactivate]
      * @param array $options
      * @throws ClientException
-     * @return ResponseInterface
+     * @return mixed
      */
     protected function toogleStatus($code, $status, array $options = []){
 
diff --git a/src/Prettus/Moip/Subscription/Webservice/FormatInJson.php b/src/Prettus/Moip/Subscription/Webservice/FormatInJson.php
new file mode 100644
index 0000000..ec95a28
--- /dev/null
+++ b/src/Prettus/Moip/Subscription/Webservice/FormatInJson.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace Prettus\Moip\Subscription\Webservice;
+
+/**
+ * Class FormatInJson
+ * @package Prettus\Moip\Subscription\Webservice
+ */
+class FormatInJson extends Formatter
+{
+    /**
+     * Format json and return collection of data.
+     *
+     * @return mixed
+     */
+    public function format()
+    {
+        return json_decode($this->renderer->format(), true);
+    }
+}
\ No newline at end of file
diff --git a/src/Prettus/Moip/Subscription/Webservice/Formatter.php b/src/Prettus/Moip/Subscription/Webservice/Formatter.php
new file mode 100644
index 0000000..1a9b8ba
--- /dev/null
+++ b/src/Prettus/Moip/Subscription/Webservice/Formatter.php
@@ -0,0 +1,24 @@
+<?php
+
+namespace Prettus\Moip\Subscription\Webservice;
+
+use Prettus\Moip\Subscription\Contracts\Renderable;
+
+/**
+ * Class Formatter
+ * @package Prettus\Moip\Subscription\Webservice
+ */
+abstract class Formatter implements Renderable
+{
+    /** @var  Renderable */
+    protected $renderer;
+
+    /**
+     * ToRender constructor.
+     * @param Renderable $renderer
+     */
+    public function __construct(Renderable $renderer)
+    {
+        $this->renderer = $renderer;
+    }
+}
\ No newline at end of file
diff --git a/src/Prettus/Moip/Subscription/Webservice/ResourceUtils.php b/src/Prettus/Moip/Subscription/Webservice/ResourceUtils.php
new file mode 100644
index 0000000..2cc1985
--- /dev/null
+++ b/src/Prettus/Moip/Subscription/Webservice/ResourceUtils.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace Prettus\Moip\Subscription\Webservice;
+use Psr\Http\Message\ResponseInterface;
+
+/**
+ * Trait ResourceUtils
+ * @package Prettus\Moip\Subscription\Webservice
+ */
+trait ResourceUtils
+{
+    /**
+     * Convert json to objects.
+     *
+     * @param ResponseInterface $response
+     * @return mixed
+     */
+    public static function formatInJson(ResponseInterface $response)
+    {
+       $webservice = new Webservice( $response->getBody()->getContents() );
+       $renderTo = new FormatInJson( $webservice );
+
+       return $renderTo->format();
+    }
+}
\ No newline at end of file
diff --git a/src/Prettus/Moip/Subscription/Webservice/Webservice.php b/src/Prettus/Moip/Subscription/Webservice/Webservice.php
new file mode 100644
index 0000000..7dfe1dc
--- /dev/null
+++ b/src/Prettus/Moip/Subscription/Webservice/Webservice.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace Prettus\Moip\Subscription\Webservice;
+
+use Prettus\Moip\Subscription\Contracts\Renderable;
+
+/**
+ * Class Webservice
+ * @package Prettus\Moip\Subscription\Webservice
+ */
+class Webservice implements Renderable
+{
+    /** @var */
+    protected $data;
+
+    /**
+     * Webservice constructor.
+     * @param $data
+     */
+    public function __construct($data)
+    {
+        $this->data = $data;
+    }
+
+    /**
+     * Collection to be formatted
+     *
+     * @return mixed
+     */
+    public function format()
+    {
+        return $this->data;
+    }
+}
\ No newline at end of file