{"item_id":21298,"name":"Obsidian helmet","url":"https://runescapetrader.com/item/21298","unit":"GP","buy_limit":70,"prices":{"instant_buy":{"gp":747347,"observed_at":"2026-09-11T21:55:32Z","age_seconds":492,"status":"fresh"},"instant_sell":{"gp":725974,"observed_at":"2026-09-11T21:36:57Z","age_seconds":1607,"status":"stale"}},"market_data_updated_at":"2026-09-11T22:03:11Z","source":{"name":"OSRS Wiki real-time prices","url":"https://oldschool.runescape.wiki/w/RuneScape:Real-time_Prices"}}