{"item_id":20023,"name":"Greater demon mask","url":"https://runescapetrader.com/item/20023","unit":"GP","buy_limit":4,"prices":{"instant_buy":{"gp":3289,"observed_at":"2026-09-09T20:42:31Z","age_seconds":176907,"status":"stale"},"instant_sell":{"gp":3301,"observed_at":"2026-09-11T21:41:57Z","age_seconds":541,"status":"fresh"}},"market_data_updated_at":"2026-09-11T21:50:11Z","source":{"name":"OSRS Wiki real-time prices","url":"https://oldschool.runescape.wiki/w/RuneScape:Real-time_Prices"}}