[null,null,["最終更新日 2025-07-25 UTC。"],[],[],null,["# Track usage metrics\n\nThis guide explains how to use the **API diagnostics** add-on to monitor\nMerchant API usage.\n\nWith API diagnostics, you can do the following:\n\n- Monitor the usage of your API calls.\n- Track the success and failure metrics of API calls.\n- View the exact errors that caused API requests to fail.\n\nIt provides insights into the usage metrics, helping you understand how your\ncalls are performing.\n| **Note:** API diagnostics displays metrics for both Content API and Merchant API. You will see a consolidated view if you use both APIs.\n\nHow to monitor usage statistics\n-------------------------------\n\nTo track the usage metrics in Merchant Center, do the following:\n\n1. Go to [Merchant Center](https://merchants.google.com).\n\n2. Select the settings icon settings. A\n menu appears.\n\n3. From the menu, click **Add-ons**.\n\n4. To enable the **API diagnostics** add-on, click **Add**.\n\n5. A dialog appears, click **Add**.\n\n6. Click **Your add-ons**.\n\n7. Click **Go to API diagnostics**.\n\n8. The [API diagnostics page](//merchants.google.com/mc/contentapi/diagnostics) appears, where you can track usage metrics.\n\nFor more information, see [Debug API errors with API diagnostics](https://support.google.com/merchants/answer/14175321)."]]
