# iScan

Use iScan to validate your API requests and responses against Alipay+ standards.

On the **Sandbox** > **Tools** > **iScan** page, follow these steps:

1.  Select an API and the standard version. Enter your request or response in JSON format.

![image.png](https://idocs-assets.marmot-cloud.com/storage/idocs87c36dc8dac653c1/1756265793884-ee3d9899-eaba-4488-a39a-790cc95228b4.png)

2.  Click **Scan**. The validation results are shown on the right.

![image.png](https://idocs-assets.marmot-cloud.com/storage/idocs87c36dc8dac653c1/1756274970016-e2d5ec78-92b5-4a5f-b60f-22d6ffb46849.png)