diff --git a/.gitignore b/.gitignore
index bbc3072..e39b05d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 vendor/
 node_modules/
-examples/asaas/credentials.php
\ No newline at end of file
+examples/asaas/credentials.php
+examples/efi/credentials.php
\ No newline at end of file
diff --git a/composer.json b/composer.json
index f599215..35d43dc 100644
--- a/composer.json
+++ b/composer.json
@@ -5,6 +5,7 @@
         "psr-4": {
             "PHPay\\": "src/",
             "Asaas\\": "src/Gateways/Asaas/",
+            "Efi\\": "src/Gateways/Efi/",
             "AsaasCustomer\\": "src/Gateways/Asaas/Resources/Customer/"
         }
     },
@@ -32,4 +33,4 @@
     "scripts": {
         "test": "vendor/bin/pest"
     }
-}
+}
\ No newline at end of file
diff --git a/examples/efi/charges.php b/examples/efi/charges.php
new file mode 100644
index 0000000..665adf8
--- /dev/null
+++ b/examples/efi/charges.php
@@ -0,0 +1,45 @@
+<?php
+
+use PHPay\Gateways\Efi\EfiGateway;
+use PHPay\PHPay;
+
+require_once __DIR__ . '/../../vendor/autoload.php';
+
+require_once __DIR__ . '/credentials.php';
+
+$customer = [
+    'name'    => NAME,
+    'cpfCnpj' => CPF_CNPJ,
+];
+
+$charge = [
+    'billingType' => 'PIX',
+    'value'       => 100.00,
+    'description' => 'Teste de fatura',
+    'dueDate'     => date('Y-m-d', strtotime('+1 day')),
+];
+
+/**
+ * initialize phpay
+ *
+ * @var EfiGateway $phpay
+ */
+$phpay = new PHPay(new EfiGateway());
+
+$token = $phpay
+    ->authorization(CLIENT_ID, CLIENT_SECRET)
+    ->getToken();
+
+print_r($token);
+
+die();
+
+/**
+ * create charge
+ *
+ * @return array charges
+ */
+$chargeCreated = $phpay
+    ->charge($charge)
+    ->setCustomer($customer)
+    ->create();
diff --git a/examples/efi/credentials.example.php b/examples/efi/credentials.example.php
new file mode 100644
index 0000000..ce25cbb
--- /dev/null
+++ b/examples/efi/credentials.example.php
@@ -0,0 +1,6 @@
+<?php
+
+// const TOKEN_ASAAS_SANDBOX = '';
+
+// const NAME     = '';
+// const CPF_CNPJ = '';
diff --git a/src/Gateways/Efi/EfiGateway.php b/src/Gateways/Efi/EfiGateway.php
new file mode 100644
index 0000000..b732ee0
--- /dev/null
+++ b/src/Gateways/Efi/EfiGateway.php
@@ -0,0 +1,74 @@
+<?php
+
+namespace PHPay\Gateways\Efi;
+
+use Efi\Interface\EfiGatewayInterface;
+use Efi\Resources\Authorization\Authorization;
+use Efi\Traits\HasEfiClient;
+use GuzzleHttp\Client;
+use stdClass;
+
+class EfiGateway implements EfiGatewayInterface
+{
+    use HasEfiClient;
+
+    /**
+     * client guzzle
+     */
+    public Client $client;
+
+    /**
+     * construct
+     *
+     * @param bool $sandbox
+     */
+    public function __construct(
+        private bool $sandbox = true
+    ) {
+    }
+
+    /**
+     * autorization
+     *
+     * @param string $clientId
+     * @param string $clientSecret
+     * @return Authorization
+     */
+    public function authorization(string $clientId, string $clientSecret): Authorization
+    {
+        return new Authorization($clientId, $clientSecret, $this->sandbox);
+    }
+
+    /**
+     * create charge
+     *
+     * @param array<string> $charge
+     * @return object charge
+     */
+    public function charge(array $charge = []): object
+    {
+        return new stdClass();
+    }
+
+    /**
+     * create customer
+     *
+     * @param array<string> $customer
+     * @return object customer
+     */
+    public function customer(array $customer = []): object
+    {
+        return new stdClass();
+    }
+
+    /**
+     * create webhook
+     *
+     * @param array<string> $webhook
+     * @return object webhook
+     */
+    public function webhook(array $webhook = []): object
+    {
+        return new stdClass();
+    }
+}
diff --git a/src/Gateways/Efi/Interface/EfiGatewayInterface.php b/src/Gateways/Efi/Interface/EfiGatewayInterface.php
new file mode 100644
index 0000000..3e173a1
--- /dev/null
+++ b/src/Gateways/Efi/Interface/EfiGatewayInterface.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace Efi\Interface;
+
+use Efi\Resources\Authorization\Authorization;
+use PHPay\Contracts\GatewayInterface;
+
+interface EfiGatewayInterface extends GatewayInterface
+{
+    public function authorization(string $clientId, string $clientSecrete): Authorization;
+}
diff --git a/src/Gateways/Efi/Resources/Authorization/Authorization.php b/src/Gateways/Efi/Resources/Authorization/Authorization.php
new file mode 100644
index 0000000..c2f9594
--- /dev/null
+++ b/src/Gateways/Efi/Resources/Authorization/Authorization.php
@@ -0,0 +1,45 @@
+<?php
+
+namespace Efi\Resources\Authorization;
+
+use Efi\Resources\Authorization\Interface\AuthorizationInterface;
+use Efi\Traits\HasEfiClient;
+use GuzzleHttp\Client;
+
+class Authorization implements AuthorizationInterface
+{
+    use HasEfiClient;
+
+    /**
+     * client guzzle
+     */
+    public Client $client;
+
+    /**
+     * construct
+     *
+     * @param string $clientId
+     * @param string $clientSecret
+     * @param bool $sandbox
+     */
+    public function __construct(
+        private string $clientId,
+        private string $clientSecret,
+        protected bool $sandbox = true
+    ) {
+    }
+
+    /**
+     * get token
+     *
+     * @return array<mixed>
+     */
+    public function getToken(): array
+    {
+        $this->client = $this->clientEfiAuthorize($this->clientId, $this->clientSecret);
+
+        return $this->post("v1/authorize", [
+            'grant_type' => 'client_credentials',
+        ]);
+    }
+}
diff --git a/src/Gateways/Efi/Resources/Authorization/Interface/AuthorizationInterface.php b/src/Gateways/Efi/Resources/Authorization/Interface/AuthorizationInterface.php
new file mode 100644
index 0000000..bc7e4e4
--- /dev/null
+++ b/src/Gateways/Efi/Resources/Authorization/Interface/AuthorizationInterface.php
@@ -0,0 +1,7 @@
+<?php
+
+namespace Efi\Resources\Authorization\Interface;
+
+interface AuthorizationInterface
+{
+}
diff --git a/src/Gateways/Efi/Resources/Charge/Charge.php b/src/Gateways/Efi/Resources/Charge/Charge.php
new file mode 100644
index 0000000..7a14328
--- /dev/null
+++ b/src/Gateways/Efi/Resources/Charge/Charge.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Efi\Resources\Charge;
+
+use Efi\Resources\Charge\Interface\ChargeInterface;
+
+class Charge implements ChargeInterface
+{
+}
diff --git a/src/Gateways/Efi/Resources/Charge/Interface/ChargeInterface.php b/src/Gateways/Efi/Resources/Charge/Interface/ChargeInterface.php
new file mode 100644
index 0000000..871c149
--- /dev/null
+++ b/src/Gateways/Efi/Resources/Charge/Interface/ChargeInterface.php
@@ -0,0 +1,7 @@
+<?php
+
+namespace Efi\Resources\Charge\Interface;
+
+interface ChargeInterface
+{
+}
diff --git a/src/Gateways/Efi/Traits/HasEfiClient.php b/src/Gateways/Efi/Traits/HasEfiClient.php
new file mode 100644
index 0000000..d461083
--- /dev/null
+++ b/src/Gateways/Efi/Traits/HasEfiClient.php
@@ -0,0 +1,151 @@
+<?php
+
+namespace Efi\Traits;
+
+use GuzzleHttp\Client;
+
+trait HasEfiClient
+{
+    /**
+     * client guzzle
+     *
+     * @param string $clientId
+     * @param string $clientSecret
+     * @return Client
+     */
+    protected function clientEfiAuthorize(
+        string $clientId,
+        string $clientSecret
+    ): Client {
+        $baseUrl = $this->sandbox ?
+            'https://cobrancas-h.api.efipay.com.br/' :
+            'https://cobrancas.api.efipay.com.br/';
+
+        return new Client([
+            'base_uri' => $baseUrl,
+            'headers'  => [
+                'Authorization' => 'Basic ' . base64_encode("{$clientId}:{$clientSecret}"),
+                'content-type'  => 'application/json',
+            ],
+        ]);
+    }
+
+    /**
+     * boot client
+     *
+     * @return Client
+     */
+    protected function clientEfiBoot(): Client
+    {
+        $baseUrl = $this->sandbox ?
+            'https://cobrancas-h.api.efipay.com.br/' :
+            'https://cobrancas.api.efipay.com.br/';
+
+        return new Client([
+            'base_uri' => $baseUrl,
+            'headers'  => [
+                'content-type' => 'application/json',
+                'user-agent'   => 'PHPay',
+                'access_token' => '',
+            ],
+        ]);
+    }
+
+    /**
+     * get data
+     *
+     * @param string $endpoint
+     * @param array<mixed> $filters
+     * @return array<array|mixed>
+     */
+    protected function get(string $endpoint, array $filters = []): array
+    {
+        try {
+            $reposonse = $this->client->get($endpoint, [
+                'query' => $filters,
+            ]);
+
+            $content = $reposonse
+                ->getBody()
+                ->getContents();
+
+            return (array) json_decode($content, true);
+        } catch (\Exception $e) {
+            return [
+                'error'   => $e->getCode(),
+                'message' => $e->getMessage(),
+            ];
+        }
+    }
+
+    /**
+     * post data
+     *
+     * @param string $endpoint
+     * @param array<mixed> $data
+     * @return array<iterable|mixed>
+     */
+    protected function post(string $endpoint, array $data = []): array
+    {
+        try {
+            $reposonse = $this->client->post($endpoint, [
+                'json' => $data,
+            ]);
+
+            $content = $reposonse
+                ->getBody()
+                ->getContents();
+
+            return (array) json_decode($content, true);
+        } catch (\Exception $e) {
+            return [
+                'error'   => $e->getCode(),
+                'message' => $e->getMessage(),
+            ];
+        }
+    }
+
+    /**
+     * put data
+     *
+     * @param string $endpoint
+     * @param array<mixed> $data
+     * @return array<mixed>
+     */
+    protected function put(string $endpoint, array $data): array
+    {
+        try {
+            $response = $this->client->put($endpoint, [
+                'json' => $data,
+            ]);
+
+            $content = $response
+                ->getBody()
+                ->getContents();
+
+            return (array) json_decode($content, true);
+        } catch (\Exception $e) {
+            return [
+                'error'   => $e->getCode(),
+                'message' => $e->getMessage(),
+            ];
+        }
+    }
+
+    /**
+     * delete data
+     *
+     * @param string $endpoint
+     * @return bool
+     */
+    protected function delete(string $endpoint): bool
+    {
+        try {
+            $response = $this->client->delete($endpoint);
+
+            return ($response->getStatusCode() == 200);
+        } catch (\Exception $e) {
+            return false;
+        }
+    }
+}
diff --git a/src/PHPay.php b/src/PHPay.php
index b2cb48c..ac9bcb4 100644
--- a/src/PHPay.php
+++ b/src/PHPay.php
@@ -2,6 +2,7 @@
 
 namespace PHPay;
 
+use Efi\Interface\EfiGatewayInterface;
 use PHPay\Contracts\GatewayInterface;
 
 class PHPay implements GatewayInterface
@@ -17,6 +18,24 @@ public function __construct(
         $this->gateway = $gateway;
     }
 
+    /**
+     * ATTENTION!!! ONLY EFÍ GATEWAY
+     * get resource authorize from gateway.
+     *
+     * @param string $clientId
+     * @param string $clientSecret
+     * @return object
+     */
+    public function authorization(string $clientId, string $clientSecret): object
+    {
+        /**
+         * @var EfiGatewayInterface $gateway
+         */
+        $gateway = $this->gateway;
+
+        return $gateway->authorization($clientId, $clientSecret);
+    }
+
     /**
      * get resource customer from gateway.
      *