magento-test/app/code/Magento/Quote/etc/webapi_rest/di.xml

<?xml version="1.0"?>
<!--
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <type name="Magento\Quote\Model\GuestCart\GuestCartManagement">
        <plugin name="authorization" type="Magento\Quote\Model\GuestCartManagement\Plugin\Authorization" />
    </type>
    <type name="Magento\Quote\Model\QuoteRepository">
        <plugin name="accessControl" type="Magento\Quote\Model\QuoteRepository\Plugin\AccessChangeQuoteControl" />
        <plugin name="authorization" type="Magento\Quote\Model\QuoteRepository\Plugin\Authorization" />
    </type>
    <type name="Magento\Quote\Api\GuestCartItemRepositoryInterface">
        <plugin name="updateCartIdFromRequest" type="Magento\Quote\Plugin\UpdateCartId" />
    </type>
    <type name="Magento\Quote\Model\Quote">
        <plugin name="updateQuoteStoreId" type="Magento\Quote\Model\Quote\Plugin\UpdateQuoteStoreId" />
    </type>
    <type name="Magento\Webapi\Controller\Rest\ParamsOverrider">
        <plugin name="validateQuoteData" type="Magento\Quote\Plugin\Webapi\Controller\Rest\ValidateQuoteData" sortOrder="1" disabled="false" />
    </type>
</config>