Translations:Extension:CirrusSearch/53/en

Searching happens via the normal search API, $apisearch; you can use CirrusSearch-specific features, such as the  special prefix to find pages related to Marie Curie and radium: [$urlquery api.php?action=query&list=search&srsearch=morelike:Marie_Curie%7Cradium&srlimit=10&srprop=size&formatversion=2]