The Wikipedia portion is reasonably complete for read-only lookup: search, summary, sections, full extract, and random discovery cover common encyclopedic questions without dead ends. The broader Pipeworx surface is also extensive, with query, grounded verification, deep research, entity resolution/profile/comparison, claim validation, memory, and subscription lifecycle tools. Minor gaps remain (no article categories/history, no update for subscriptions, no direct fetch of a citation URI), but they are workable.