diff --git a/src/Core/Request/Carts/Command/CartSetAnonymousIdAction.php b/src/Core/Request/Carts/Command/CartSetAnonymousIdAction.php
new file mode 100644
index 0000000000..19c117005e
--- /dev/null
+++ b/src/Core/Request/Carts/Command/CartSetAnonymousIdAction.php
@@ -0,0 +1,38 @@
+<?php
+/**
+ * @author @jayS-de <jens.schulze@commercetools.de>
+ */
+
+namespace Commercetools\Core\Request\Carts\Command;
+
+use Commercetools\Core\Model\Common\Context;
+use Commercetools\Core\Request\AbstractAction;
+
+/**
+ * @package Commercetools\Core\Request\Carts\Command
+ * @link https://dev.commercetools.com/http-api-projects-carts.html#set-anonymous-id
+ * @method string getAction()
+ * @method CartSetAnonymousIdAction setAction(string $action = null)
+ * @method string getAnonymousId()
+ * @method CartSetAnonymousIdAction setAnonymousId(string $anonymousId = null)
+ */
+class CartSetAnonymousIdAction extends AbstractAction
+{
+    public function fieldDefinitions()
+    {
+        return [
+            'action' => [static::TYPE => 'string'],
+            'anonymousId' => [static::TYPE => 'string'],
+        ];
+    }
+
+    /**
+     * @param array $data
+     * @param Context|callable $context
+     */
+    public function __construct(array $data = [], $context = null)
+    {
+        parent::__construct($data, $context);
+        $this->setAction('setAnonymousId');
+    }
+}
diff --git a/tests/integration/Cart/CartUpdateRequestTest.php b/tests/integration/Cart/CartUpdateRequestTest.php
index 68ee8c1aab..73aebe4c5b 100644
--- a/tests/integration/Cart/CartUpdateRequestTest.php
+++ b/tests/integration/Cart/CartUpdateRequestTest.php
@@ -48,6 +48,7 @@
 use Commercetools\Core\Request\Carts\Command\CartRemoveDiscountCodeAction;
 use Commercetools\Core\Request\Carts\Command\CartRemoveLineItemAction;
 use Commercetools\Core\Request\Carts\Command\CartRemovePaymentAction;
+use Commercetools\Core\Request\Carts\Command\CartSetAnonymousIdAction;
 use Commercetools\Core\Request\Carts\Command\CartSetBillingAddressAction;
 use Commercetools\Core\Request\Carts\Command\CartSetCountryAction;
 use Commercetools\Core\Request\Carts\Command\CartSetCustomerEmailAction;
@@ -654,6 +655,36 @@ public function testSetCountry()
         $this->assertSame($country, $cart->getCountry());
     }
 
+    public function testSetAnonymousId()
+    {
+        $anonymousId = uniqid();
+        $draft = $this->getDraft();
+        $draft->setAnonymousId($anonymousId);
+        $cart = $this->createCart($draft);
+        $this->assertSame($anonymousId, $cart->getAnonymousId());
+
+        $newAnonymousId = uniqid();
+
+        $request = CartUpdateRequest::ofIdAndVersion($cart->getId(), $cart->getVersion())
+            ->addAction(CartSetAnonymousIdAction::of()->setAnonymousId($newAnonymousId))
+        ;
+        $response = $request->executeWithClient($this->getClient());
+        $cart = $request->mapResponse($response);
+        $this->deleteRequest->setVersion($cart->getVersion());
+
+        $this->assertSame($newAnonymousId, $cart->getAnonymousId());
+
+        $request = CartUpdateRequest::ofIdAndVersion($cart->getId(), $cart->getVersion())
+            ->addAction(CartSetAnonymousIdAction::of())
+        ;
+        $response = $request->executeWithClient($this->getClient());
+        $cart = $request->mapResponse($response);
+        $this->deleteRequest->setVersion($cart->getVersion());
+
+        $this->assertNull($cart->getAnonymousId());
+
+    }
+
     public function testSetShippingMethod()
     {
         $draft = $this->getDraft();