Clients that use the API won't see a difference. They get raw content output and don't rely on skin features at all.

You can simulate that kind of response with the render query parameter:

https://en.wikipedia.org/wiki/59th_Academy_Awards?action=ren...

but clients probably use more specific API endpoints, like fetching the HTML:

https://en.wikipedia.org/w/api.php?format=json&action=query&...

or plain text:

https://en.wikipedia.org/w/api.php?format=json&action=query&...