Returns OAuth token metadata and scopes granted by the seller to your application. Use this to verify whether a token is valid, when it expires, and which API categories are allowed (full_access, view_only, no_access). Send the access token in the WM_SEC.ACCESS_TOKEN header.

You can also use this API for troubleshooting access failures and rendering “connected account” permissions in your UI. For more information and usage examples, refer to Retrieve access token details.