action=query & list=watchlist should allow to filter for tags
Open, Needs TriagePublic

Description

list=recentchanges has a rctag parameter, this should be added to list=watchlist to allow filter of tags like the special page already supports

A wltag parameter needs to be added for this

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptMon, Jan 1, 1:34 PM
Anomie added a subscriber: Anomie.Tue, Jan 2, 3:44 PM

Note it's not quite as simple as that, since ApiQueryWatchlist uses WatchedItemQueryService so the functionality would have to be added there.