The consumables catalog includes everything Blizzard files under the consumable item class: combat potions and flasks, healing potions and bandages, food and drink, augment runes, buff scrolls, throwables, and the reagent-style consumables classes burn during raid nights. Each entry shows the item level, required level, quality tier, and the consumable's primary use category through its subclass.
Consumable pricing is where the weekly raid-reset cycle is most visible in the data. Demand concentrates around reset day, and the price chart shows the resulting sawtooth clearly — the same flask can trade at visibly different prices on different days of the same week. Potions and flasks ride that cycle hardest; food and drink smooth it out because leveling players buy year-round; bandages are largely a classic-edition market, where first aid still competes with potions on a separate cooldown. The classic editions add their own staples on top — vanilla-era protection potions spike before the raids that demand them, and Season of Discovery layers fresh raid-cycle demand onto original-game supply lines, which keeps its buff economy busier than the edition's size suggests.
Because consumables trade continuously, feed freshness matters more here than anywhere else. Retail snapshots land hourly from the Blizzard auction-house API, and TBC Classic matches that hourly pace through TradeSkillMaster — fast enough that the chart reflects a raid evening while it is still happening. Season of Discovery updates about twice a day and MoP Classic weekly, so their consumable charts read as trend lines rather than tickers.
To find one consumable by name, the search box on the item database home page narrows quickly. The "Browse subcategories" links below step from Consumables into Potions, Elixirs, Flasks & Phials, Food & Drink, Bandages, or whichever subclass interests you, and every row in the table links to that item's full price-history page with realm and edition selectors.