http://wikicite.org/access.html contains an input form to lookup and format bibliographic items from Wikidata, implemented with citation.js. This is a hack to be improved:

• async loading
• select CSL template (only "apa" seems to work?)
• disable verbose citation.js logging to console
• filter out or warn on non-bibliographic items
• provide examples to click on
• support switching languages
• typeahead search form