Build TF2 item catalogues, marketplace price comparisons and backpack tools through three documented APIs.
Use Steam App ID 440 with the three core Team Fortress 2 API products. Each product has a distinct data purpose and links to its dedicated page.
Retrieve the complete supported TF2 item catalogue, item metadata and current prices through the Items endpoint.
/steam/api/items
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Compare current prices from supported third-party marketplaces through market filters and dedicated market endpoints.
/steam/api/items?markets=…
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Fetch public TF2 inventories by SteamID with asset IDs, class IDs and normalized item metadata.
/steam/api/inventory
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Three core API requests
Use the same game parameter mapped to Steam App ID 440 across the Items and Inventory endpoints. Add a market filter when you only need selected third-party prices.
curl -H 'X-Api-Key: YOUR_API_KEY' 'https://www.steamwebapi.com/steam/api/items?game=tf2'
curl -H 'X-Api-Key: YOUR_API_KEY' 'https://www.steamwebapi.com/steam/api/items?game=tf2&markets=MARKET_IDENT'
curl -H 'X-Api-Key: YOUR_API_KEY' 'https://www.steamwebapi.com/steam/api/inventory?steam_id=STEAM_ID64&game=tf2'
Operational proof
Established in 2018 and trusted by developers, marketplaces and trading platforms.
Team Fortress 2 uses Steam App ID 440. The TF2 Price API returns supported item data and current prices, the TF2 Market API exposes supported third-party prices, and the TF2 Inventory API retrieves public backpack data.
Use these endpoints for a TF2 item catalogue, price tracker, marketplace comparison or inventory checker. Responses are normalized where supported, while coverage and freshness remain explicit for each data source.
Tell the Steamwebapi team what you are building. A short sentence is enough — we will help you identify the right product and the simplest way to integrate it.