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Marketplace Price API Unified prices from Buff, CSFloat, Skinport & 8 more Steam Price API Live Steam Community Market prices, sales volume & history Steam Inventory API Non-blocking inventory fetch, 429-free Steam Profile API Resolve SteamIDs, vanity URLs, profile metadata Steam Trading API Trade eligibility, lock state, Steam Guard checks CS2 Float API Float values, paint seeds & screenshots for CS2 skins Steam Sales History API Per-item Steam sales history, day-by-day CS2 Collection API Cases, capsules, collections — every CS2 set Currency API Live exchange rates for price conversion Steam Friendlist API Resolve any Steam user's friend list CS2 Marketindex API Aggregate CS2 market index, history & cross-market compare

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