Category:Pages with too many expensive parser function calls

From English Wikipedia @ Freddythechick

This category is populated automatically by the MediaWiki software. It lists articles that issue too many expensive parser function calls. As of 14 October 2010, expensive function calls were #ifexist, {{PAGESINCATEGORY}} and {{PAGESIZE}}. These pages should be edited to reduce the number of expensive calls. For a list of MediaWiki-populated tracking categories, see Special:TrackingCategories. Templates and modules which cause pages to fall into this category should use {{expensive}} at the top of their documentation sub-pages.

API calls that return xml formatted lists