diff --git a/composer.json b/composer.json
index 0292916..89e5fc9 100644
--- a/composer.json
+++ b/composer.json
@@ -14,7 +14,7 @@
         }
     ],
     "require": {
-        "php": ">=5.4.0",
+        "php": ">=7.1",
         "ext-curl": "*",
         "ext-json": "*",
         "ext-mbstring": "*",
@@ -29,4 +29,4 @@
             "PagarmeCoreApiLib\\": "src/"
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/Controllers/AccountsController.php b/src/Controllers/AccountsController.php
new file mode 100644
index 0000000..5fd8009
--- /dev/null
+++ b/src/Controllers/AccountsController.php
@@ -0,0 +1,99 @@
+<?php
+/*
+ * PagarmeCoreApiLib
+ *
+ * This file was automatically generated by APIMATIC v2.0 ( https://apimatic.io ).
+ */
+
+namespace PagarmeCoreApiLib\Controllers;
+
+use PagarmeCoreApiLib\APIException;
+use PagarmeCoreApiLib\APIHelper;
+use PagarmeCoreApiLib\Configuration;
+use PagarmeCoreApiLib\Models;
+use PagarmeCoreApiLib\Exceptions;
+use PagarmeCoreApiLib\Http\HttpRequest;
+use PagarmeCoreApiLib\Http\HttpResponse;
+use PagarmeCoreApiLib\Http\HttpMethod;
+use PagarmeCoreApiLib\Http\HttpContext;
+use Unirest\Request;
+
+/**
+ * @todo Add a general description for this controller.
+ */
+class AccountsController extends BaseController
+{
+    /**
+     * @var AccountsController The reference to *Singleton* instance of this class
+     */
+    private static $instance;
+
+    /**
+     * Returns the *Singleton* instance of this class.
+     * @return AccountsController The *Singleton* instance.
+     */
+    public static function getInstance()
+    {
+        if (null === static::$instance) {
+            static::$instance = new static();
+        }
+
+        return static::$instance;
+    }
+
+    /**
+     * @todo Add general description for this endpoint
+     *
+     * @param string $accountId  TODO: type description here
+     * @return mixed response from the API call
+     * @throws APIException Thrown if API call fails
+     */
+    public function getAccountById(
+        $accountId
+    ) {
+
+        //prepare query string for API call
+        $_queryBuilder = '/accounts/{account_id}';
+
+        //process optional query parameters
+        $_queryBuilder = APIHelper::appendUrlWithTemplateParameters($_queryBuilder, array (
+            'account_id' => $accountId,
+            ));
+
+        //validate and preprocess url
+        $_queryUrl = APIHelper::cleanUrl(Configuration::$BASEURI . $_queryBuilder);
+
+        //prepare headers
+        $_headers = array (
+            'user-agent'    => BaseController::USER_AGENT,
+            'Accept'        => 'application/json'
+        );
+
+        //set HTTP basic auth parameters
+        Request::auth(Configuration::$basicAuthUserName, Configuration::$basicAuthPassword);
+
+        //call on-before Http callback
+        $_httpRequest = new HttpRequest(HttpMethod::GET, $_headers, $_queryUrl);
+        if ($this->getHttpCallBack() != null) {
+            $this->getHttpCallBack()->callOnBeforeRequest($_httpRequest);
+        }
+
+        //and invoke the API call request to fetch the response
+        $response = Request::get($_queryUrl, $_headers);
+
+        $_httpResponse = new HttpResponse($response->code, $response->headers, $response->raw_body);
+        $_httpContext = new HttpContext($_httpRequest, $_httpResponse);
+
+        //call on-after Http callback
+        if ($this->getHttpCallBack() != null) {
+            $this->getHttpCallBack()->callOnAfterRequest($_httpContext);
+        }
+
+        //handle errors defined at the API level
+        $this->validateResponse($_httpResponse, $_httpContext);
+
+        $mapper = $this->getJsonMapper();
+
+        return $mapper->mapClass($response->body, 'PagarmeCoreApiLib\\Models\\GetAccountResponse');
+    }
+}
diff --git a/src/Controllers/BaseController.php b/src/Controllers/BaseController.php
index f991e59..8ba137e 100644
--- a/src/Controllers/BaseController.php
+++ b/src/Controllers/BaseController.php
@@ -24,7 +24,7 @@ class BaseController
      * User-agent to be sent with API calls
      * @var string
      */
-    const USER_AGENT = 'PagarmeCoreApi - PHP 5.7.0';
+    const USER_AGENT = 'PagarmeCoreApi - PHP 5.6.3';
 
     /**
      * HttpCallBack instance associated with this controller
diff --git a/src/Models/GetAccountResponse.php b/src/Models/GetAccountResponse.php
new file mode 100644
index 0000000..193b046
--- /dev/null
+++ b/src/Models/GetAccountResponse.php
@@ -0,0 +1,324 @@
+<?php
+/*
+ * PagarmeCoreApiLib
+ *
+ * This file was automatically generated by APIMATIC v2.0 ( https://apimatic.io ).
+ */
+
+namespace PagarmeCoreApiLib\Models;
+
+use JsonSerializable;
+
+/**
+ *Response object for getting a charge
+ */
+class GetAccountResponse implements JsonSerializable
+{
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @var string $id public property
+     */
+    public $id;
+
+    /**
+     * @maps secret_key
+     * @var string $secretKey public property
+     */
+    public $secretKey;
+
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @maps public_key
+     * @var string $publicKey public property
+     */
+    public $publicKey;
+
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @var string $name public property
+     */
+    public $name;
+
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @var string $timeZone public property
+     * @maps time_zone
+     */
+    public $timeZone;
+
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @var string $defaultCurrency public property
+     * @maps default_currency
+     */
+
+    public $defaultCurrency;
+
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @var string $status public property
+     */
+    public $status;
+
+    /**
+     * @todo Write general description for this property
+     * @var array $domains public property
+     */
+    public $domains;
+
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @var array $antifraudSettings public property
+     * @maps antifraud_settings
+     */
+    public $antifraudSettings;
+
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @var array $mundipaggSettings public property
+     * @maps mundipagg_settings
+     */
+    public $mundipaggSettings;
+
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @var array $pagarmeSettings public property
+     * @maps pagarme_settings
+     */
+    public $pagarmeSettings;
+
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @var array $creditCardSettings public property
+     * @maps credit_card_settings
+     */
+    public $creditCardSettings;
+
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @var array $debitCardSettings public property
+     * @maps debit_card_settings
+     */
+    public $debitCardSettings;
+
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @var array $voucherSettings public property
+     * @maps voucher_settings
+     */
+    public $voucherSettings;
+
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @var array $boletoSettings public property
+     * @maps boleto_settings
+     */
+    public $boletoSettings;
+
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @var array $bankTransferSettings public property
+     * @maps bank_transfer_settings
+     */
+    public $bankTransferSettings;
+
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @var array $walletSettings public property
+     * @maps wallet_settings
+     */
+    public $walletSettings;
+
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @var array $safetypaySettings public property
+     * @maps safetypay_settings
+     */
+    public $safetypaySettings;
+
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @var array $facebookSettings public property
+     * @maps facebook_settings
+     */
+    public $facebookSettings;
+
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @var array $generalSettings public property
+     * @maps general_settings
+     */
+    public $generalSettings;
+
+    /**
+     * @var array $webhookSettings public property
+     * @maps webhook_settings
+     */
+    public $webhookSettings;
+
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @var array $splitSettings public property
+     * @maps split_settings
+     */
+    public $splitSettings;
+
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @var array $subscriptionSettings public property
+     * @maps subscription_settings
+     */
+    public $subscriptionSettings;
+
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @var array $orderSettings public property
+     * @maps order_settings
+     */
+    public $orderSettings;
+
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @var array $notificationSettings public property
+     * @maps notification_settings
+     */
+    public $notificationSettings;
+
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @var array $cancellationSettings public property
+     * @maps guaranteed_cancellation_settings
+     */
+    public $cancellationSettings;
+
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @var array $renewCardSettings public property
+     * @maps renew_card_settings
+     */
+    public $renewCardSettings;
+
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @var array $cashSettings public property
+     * @maps cash_settings
+     */
+    public $cashSettings;
+
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @var array $checkoutSettings public property
+     * @maps checkout_settings
+     */
+    public $checkoutSettings;
+
+    /**
+     * @todo Write general description for this property
+     * @required
+     * @var array $pixSettings public property
+     * @maps pix_settings
+     */
+    public $pixSettings;
+
+    public function __construct()
+    {
+        if (30 == func_num_args()) {
+            $this->id = func_get_arg(0);
+            $this->secretKey = func_get_arg(1);
+            $this->publicKey = func_get_arg(2);
+            $this->name = func_get_arg(3);
+            $this->timeZone = func_get_arg(4);
+            $this->defaultCurrency = func_get_arg(5);
+            $this->status = func_get_arg(6);
+            $this->domains = func_get_arg(7);
+            $this->antifraudSettings = func_get_arg(8);
+            $this->mundipaggSettings = func_get_arg(9);
+            $this->pagarmeSettings = func_get_arg(10);
+            $this->creditCardSettings = func_get_arg(11);
+            $this->debitCardSettings = func_get_arg(12);
+            $this->voucherSettings = func_get_arg(13);
+            $this->boletoSettings = func_get_arg(14);
+            $this->bankTransferSettings = func_get_arg(15);
+            $this->walletSettings = func_get_arg(16);
+            $this->safetypaySettings = func_get_arg(17);
+            $this->facebookSettings = func_get_arg(18);
+            $this->generalSettings = func_get_arg(19);
+            $this->webhookSettings = func_get_arg(20);
+            $this->splitSettings = func_get_arg(21);
+            $this->subscriptionSettings = func_get_arg(22);
+            $this->orderSettings = func_get_arg(23);
+            $this->notificationSettings = func_get_arg(24);
+            $this->cancellationSettings = func_get_arg(25);
+            $this->renewCardSettings = func_get_arg(26);
+            $this->cashSettings = func_get_arg(27);
+            $this->checkoutSettings = func_get_arg(28);
+            $this->pixSettings = func_get_arg(29);
+        }
+    }
+
+    /**
+     * Encode this object to JSON
+     */
+    #[\ReturnTypeWillChange]
+    public function jsonSerialize()
+    {
+        $json = array();
+        $json['id']                               = $this->id;
+        $json['secret_key']                       = $this->secretKey;
+        $json['public_key']                       = $this->publicKey;
+        $json['name']                             = $this->name;
+        $json['time_zone']                        = $this->timeZone;
+        $json['default_currency']                 = $this->defaultCurrency;
+        $json['status']                           = $this->status;
+        $json['domains']                          = $this->domains ?? null;
+        $json['antifraud_settings']               = $this->antifraudSettings ?? null;
+        $json['mundipagg_settings']               = $this->mundipaggSettings ?? null;
+        $json['pagarme_settings']                 = $this->pagarmeSettings ?? null;
+        $json['credit_card_settings']             = $this->creditCardSettings ?? null;
+        $json['debit_card_settings']              = $this->debitCardSettings ?? null;
+        $json['voucher_settings']                 = $this->voucherSettings ?? null;
+        $json['boleto_settings']                  = $this->boletoSettings ?? null;
+        $json['bank_transfer_settings']           = $this->bankTransferSettings ?? null;
+        $json['wallet_settings']                  = $this->walletSettings ?? null;
+        $json['safetypay_settings']               = $this->safetypaySettings ?? null;
+        $json['facebook_settings']                = $this->facebookSettings ?? null;
+        $json['general_settings']                 = $this->generalSettings ?? null;
+        $json['webhook_settings']                 = $this->webhookSettings ?? null;
+        $json['split_settings']                   = $this->splitSettings ?? null;
+        $json['subscription_settings']            = $this->subscriptionSettings ?? null;
+        $json['order_settings']                   = $this->orderSettings ?? null;
+        $json['notification_settings']            = $this->notificationSettings ?? null;
+        $json['guaranteed_cancellation_settings'] = $this->cancellationSettings ?? null;
+        $json['renew_card_settings']              = $this->renewCardSettings ?? null;
+        $json['cash_Settings']                    = $this->cashSettings ?? null;
+        $json['checkout_settings']                = $this->checkoutSettings ?? null;
+        $json['pix_settings']                     = $this->pixSettings ?? null;
+        return $json;
+    }
+}
diff --git a/src/PagarmeCoreApiClient.php b/src/PagarmeCoreApiClient.php
index e87f9f3..1778029 100644
--- a/src/PagarmeCoreApiClient.php
+++ b/src/PagarmeCoreApiClient.php
@@ -104,4 +104,12 @@ public function getTransactions()
     {
         return Controllers\TransactionsController::getInstance();
     }
+    /**
+     * Singleton access to Transactions controller
+     * @return Controllers\AccountsController The *Singleton* instance
+     */
+    public function getAccounts()
+    {
+        return Controllers\AccountsController::getInstance();
+    }
 }