MediaWiki:Apihelp-query+revisions+base-param-parse
Use action=parse instead. Parse revision content (requires $2prop=content). For performance reasons, if this option is used, $2limit is enforced to $1.
Do not begin to migrate content here, it may be wiped without notice. More info.
Use action=parse instead. Parse revision content (requires $2prop=content). For performance reasons, if this option is used, $2limit is enforced to $1.