Games & Comics — entry 066 of 77
Steam
The official Steam Web API (api.steampowered.com) covers app/player data such as owned games, achievements, friends lists, and server directories; xPaw's community reference is the most complete documentation Valve's own scattered partner docs don't fully replace. Most methods need a free per-account Web API key passed as a query parameter or header, though a handful of public methods (news, current-player counts) work keyless; responses default to JSON but can also be returned as XML, VDF, or protobuf.
AuthenticationAPI KeySign up with the provider to obtain credentials.
HTTPSSupportedTraffic is encrypted in transit.
CORSDisabledBrowser calls need a server-side proxy.
PricingFreeNo paid tier — free for the documented use case.
FormatsJSON, XML, VDF, ProtobufResponses can be requested as JSON or XML or VDF or Protobuf.
GreatAPIs Score
Score70
Authentication15/25API key required
Pricing20/20Free to use
Docs0/20No docs or spec available
Formats15/15Supports 4 response formats
Freshness20/20Verified within 6 months
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<a href="https://greatapis.com/api/steam/"><img src="https://greatapis.com/badge/steam.svg" alt="Scored 70 on greatapis.com"></a>Auth quickstart
- Sign up with the provider to get an API key.
- Send it on every request as a header
Authorization: <key> - The exact header isn't documented — Authorization is a common default; confirm in the provider's docs.
Stored keyNo key stored
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.