The current way to detect if a site uses the MediaWiki API is by querying a normal article page (e.g. the one given via the IWM) and search for a meta tag in the head tag of the HTML (e.g. `<meta name="generator" content="MediaWiki 1.25wmf14" />` on the English Wikipedia). The following sites don't have that tag:
* http://www.otterstedt.de/wiki/index.php/Hauptseite
* http://bluwiki.com/go/$1
* http://esperanto.blahus.cz/cxej/vikio/index.php/$1
* http://wiki.rennkuckuck.de/index.php/$1
* http://glossary.reuters.com/index.php?title=Main_Page
* http://www.livepedia.gr
* http://www.thelemapedia.org/index.php/Main_Page
* http://www.werelate.org/wiki/Main_Page
None of those sites have also the information where the api.php can be found, which could've helped and is also necessary to reliably begin using that site via a bot.