newsupernova/vendor/magento/module-eav/etc/webapi.xml

<?xml version="1.0"?>
<!--
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<routes xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Webapi:etc/webapi.xsd">
    <route url="/V1/eav/attribute-sets/list" method="GET">
        <service class="Magento\Eav\Api\AttributeSetRepositoryInterface" method="getList"/>
        <resources>
            <resource ref="Magento_Catalog::sets"/>
        </resources>
    </route>
    <route url="/V1/eav/attribute-sets/:attributeSetId" method="GET">
        <service class="Magento\Eav\Api\AttributeSetRepositoryInterface" method="get"/>
        <resources>
            <resource ref="Magento_Catalog::sets"/>
        </resources>
    </route>
    <route url="/V1/eav/attribute-sets/:attributeSetId" method="DELETE">
        <service class="Magento\Eav\Api\AttributeSetRepositoryInterface" method="deleteById"/>
        <resources>
            <resource ref="Magento_Catalog::sets"/>
        </resources>
    </route>
    <route url="/V1/eav/attribute-sets" method="POST">
        <service class="Magento\Eav\Api\AttributeSetManagementInterface" method="create"/>
        <resources>
            <resource ref="Magento_Catalog::sets"/>
        </resources>
    </route>
    <route url="/V1/eav/attribute-sets/:attributeSetId" method="PUT">
        <service class="Magento\Eav\Api\AttributeSetRepositoryInterface" method="save"/>
        <resources>
            <resource ref="Magento_Catalog::sets"/>
        </resources>
    </route>
</routes>