{"item_id":20266,"name":"Black unicorn mask","url":"https://runescapetrader.com/item/20266","unit":"GP","buy_limit":4,"prices":{"instant_buy":{"gp":13920,"observed_at":"2026-09-11T15:44:06Z","age_seconds":8042,"status":"stale"},"instant_sell":{"gp":11150,"observed_at":"2026-09-11T17:52:36Z","age_seconds":332,"status":"fresh"}},"market_data_updated_at":"2026-09-11T17:57:11Z","source":{"name":"OSRS Wiki real-time prices","url":"https://oldschool.runescape.wiki/w/RuneScape:Real-time_Prices"}}