diff --git a/composer.json b/composer.json
index 29bd444..a8efe81 100644
--- a/composer.json
+++ b/composer.json
@@ -12,6 +12,7 @@
         "php": "^7.0",
         "api-clients/client-services": "^1.3",
         "api-clients/foundation": "^1.0",
+        "api-clients/middleware-basic-authorization": "^3.0",
         "api-clients/middleware-http-exceptions": "^2.0",
         "api-clients/middleware-user-agent": "^2.0",
         "api-clients/middleware-xml": "^1.0",
diff --git a/composer.lock b/composer.lock
index ccefd11..55f4041 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "content-hash": "e415955e028950638786a59e245d1157",
+    "content-hash": "f01f7dfaa287b6cf842a5fae7a4147d2",
     "packages": [
         {
             "name": "api-clients/client-services",
@@ -254,6 +254,51 @@
             "description": "Request middleware",
             "time": "2017-06-28T19:24:19+00:00"
         },
+        {
+            "name": "api-clients/middleware-basic-authorization",
+            "version": "3.0.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/php-api-clients/middleware-basic-authorization.git",
+                "reference": "2b874321b7eb55783d6b772b9d29f4a18c7af87c"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/php-api-clients/middleware-basic-authorization/zipball/2b874321b7eb55783d6b772b9d29f4a18c7af87c",
+                "reference": "2b874321b7eb55783d6b772b9d29f4a18c7af87c",
+                "shasum": ""
+            },
+            "require": {
+                "api-clients/middleware": "^4.0",
+                "php": "^7.0"
+            },
+            "require-dev": {
+                "api-clients/test-utilities": "^3.0.1",
+                "ringcentral/psr7": "^1.2"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "ApiClients\\Middleware\\BasicAuthorization\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Cees-Jan Kiewiet",
+                    "email": "ceesjank@gmail.com"
+                },
+                {
+                    "name": "Jaap van Otterdijk"
+                }
+            ],
+            "description": "Basic authorization middleware",
+            "homepage": "https://php-api-clients.org/middlewares/basic-authorization/",
+            "time": "2017-07-02T14:15:20+00:00"
+        },
         {
             "name": "api-clients/middleware-http-exceptions",
             "version": "2.0.1",
diff --git a/examples/authenticated-state-async.php b/examples/authenticated-state-async.php
new file mode 100644
index 0000000..565517a
--- /dev/null
+++ b/examples/authenticated-state-async.php
@@ -0,0 +1,25 @@
+<?php declare(strict_types=1);
+
+use ApiClients\Client\Supervisord\AsyncClient;
+use ApiClients\Client\Supervisord\Options;
+use ApiClients\Client\Supervisord\Resource\StateInterface;
+use React\EventLoop\Factory;
+use function ApiClients\Foundation\resource_pretty_print;
+
+require dirname(__DIR__) . DIRECTORY_SEPARATOR . 'vendor/autoload.php';
+
+$options = [
+    Options::USERNAME => 'username',
+    Options::PASSWORD => 'password',
+];
+
+$loop = Factory::create();
+$client = AsyncClient::create(require __DIR__ . DIRECTORY_SEPARATOR . 'resolve_host.php', $loop, $options);
+
+$client->state()->done(function (StateInterface $state) {
+    resource_pretty_print($state);
+}, function ($et) {
+    echo (string)$et;
+});
+
+$loop->run();
diff --git a/examples/authenticated-state.php b/examples/authenticated-state.php
new file mode 100644
index 0000000..52d770c
--- /dev/null
+++ b/examples/authenticated-state.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+use ApiClients\Client\Supervisord\Client;
+use ApiClients\Client\Supervisord\Options;
+use function ApiClients\Foundation\resource_pretty_print;
+
+require dirname(__DIR__) . DIRECTORY_SEPARATOR . 'vendor/autoload.php';
+
+$options = [
+    Options::USERNAME => 'username',
+    Options::PASSWORD => 'password',
+];
+
+$client = Client::create(require __DIR__ . DIRECTORY_SEPARATOR . 'resolve_host.php', $options);
+
+resource_pretty_print($client->state());
diff --git a/src/ApiSettings.php b/src/ApiSettings.php
index 52507e5..b3ce0f3 100644
--- a/src/ApiSettings.php
+++ b/src/ApiSettings.php
@@ -7,6 +7,8 @@
 use ApiClients\Foundation\Hydrator\Options as HydratorOptions;
 use ApiClients\Foundation\Options as FoundationOptions;
 use ApiClients\Foundation\Transport\Options as TransportOptions;
+use ApiClients\Middleware\BasicAuthorization\BasicAuthorizationHeaderMiddleware;
+use ApiClients\Middleware\BasicAuthorization\Options as BasicAuthorizationHeaderMiddlewareOptions;
 use ApiClients\Middleware\HttpExceptions\HttpExceptionsMiddleware;
 use ApiClients\Middleware\UserAgent\Options as UserAgentMiddlewareOptions;
 use ApiClients\Middleware\UserAgent\UserAgentMiddleware;
@@ -46,10 +48,21 @@ public static function getOptions(string $host, array $suppliedOptions, string $
         $options = options_merge(self::TRANSPORT_OPTIONS, $suppliedOptions);
         $options[FoundationOptions::HYDRATOR_OPTIONS][HydratorOptions::NAMESPACE_SUFFIX] = $suffix;
 
+        $transportOptions = $options[FoundationOptions::TRANSPORT_OPTIONS];
+
         list($ip, $port) = explode(':', $host);
+        $transportOptions[TransportOptions::HOST] = $ip;
+        $transportOptions[TransportOptions::PORT] = $port;
+
+        if (isset($suppliedOptions[Options::USERNAME])) {
+            $transportOptions[TransportOptions::MIDDLEWARE][] = BasicAuthorizationHeaderMiddleware::class;
+            $transportOptions[TransportOptions::DEFAULT_REQUEST_OPTIONS][BasicAuthorizationHeaderMiddleware::class] = [
+                BasicAuthorizationHeaderMiddlewareOptions::USERNAME => $suppliedOptions[Options::USERNAME],
+                BasicAuthorizationHeaderMiddlewareOptions::PASSWORD => $suppliedOptions[Options::PASSWORD] ?? '',
+            ];
+        }
 
-        $options[FoundationOptions::TRANSPORT_OPTIONS][TransportOptions::HOST] = $ip;
-        $options[FoundationOptions::TRANSPORT_OPTIONS][TransportOptions::PORT] = $port;
+        $options[FoundationOptions::TRANSPORT_OPTIONS] = $transportOptions;
 
         return $options;
     }
diff --git a/src/Options.php b/src/Options.php
new file mode 100644
index 0000000..ae01488
--- /dev/null
+++ b/src/Options.php
@@ -0,0 +1,11 @@
+<?php
+
+declare(strict_types=1);
+
+namespace ApiClients\Client\Supervisord;
+
+final class Options
+{
+    const USERNAME = 'username';
+    const PASSWORD = 'password';
+}