미디어위키:Apihelp-query+imageinfo-param-urlwidth
If $2prop=url is set, a URL to an image scaled to this width will be returned. For performance reasons if this option is used, no more than $1 scaled images will be returned.
If $2prop=url is set, a URL to an image scaled to this width will be returned. For performance reasons if this option is used, no more than $1 scaled images will be returned.