Hi @Mohsin ,
Yes, you can access SharePoint Server REST APIs using App-Only authentication in SharePoint Server Subscription Edition. This method allows applications to interact with SharePoint resources without requiring user credentials. Here's how you can implement this approach:
https://learn.microsoft.com/en-us/sharepoint/dev/solution-guidance/security-apponly-azureacs
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.