AntiForgery with ASPX Webmethods

I am implementing AntiForgery into a WebApplication. Whilst I know this works server side using the AntiForgery Library by adding a hidden element and then validating it on a master page event, we have hundreds of ASPX Page WebMethods to consider when it comes to client side implementation with jQuery or reactJs.

Is there a way of creating a filter to tag onto WebMethods that does an AntiForgery check?