I need to add endpoint for wordpress categories

Hello dear stackexchange team or user i want to state that I have a wordpress website like example.com and i has category like example.com/category/uncategorized.

Now i want to add a endpoint named new-post after the category without creating any page or child category.

Not even just for this category but also for every category.

It means i want to add endpoint for all categories available on my wordpress website.

Like after adding the endpoint my website category should be redirect a that particular category page.

For example for uncategorized category the permalink should be example.com/category/uncategorized/new-apps.

I have try ep_categories to add endpoint for categories but this not work.

Kindly help me this and thanks in advance for your help.