File name used for collection pages

I am trying to implement a jQuery plugin that displays an estimated time to read text (link to the plugin). In order for this to work I have to use the remote file option for the blog pages in my site (link that explains the option). Basically this plug needs a remote path for to pull the text from, but each individual post has a different url, so I’m looking for name of the file used to display content on a collection page. Any ideas?