aid: steam
url: https://raw.githubusercontent.com/api-evangelist/steam/refs/heads/main/apis.yml
name: Steam
x-type: company
description: >-
  Steam is Valve's PC gaming platform and digital distribution storefront. Valve exposes the Steamworks Web API at https://api.steampowered.com/ — a constellation of HTTP interfaces for games, players, friends, achievements, items, the economy, leaderboards, remote storage, and the Steam Workshop. A subset of read-only interfaces are public (with a Steam Web API key); the full Steamworks set requires a publisher account and partner-restricted methods. There is no per-call fee for the Steamworks Web API itself; Valve monetizes through a $100 Steam Direct submission fee per product and a revenue share on store sales.
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
  - Gaming
  - Valve
  - Distribution
  - Steamworks
  - Marketplace
  - Web API
created: '2026-05-08'
modified: '2026-05-08'
specificationVersion: '0.19'
apis:
  - aid: steam:steam-news-api
    name: ISteamNews
    tags:
      - News
      - Feeds
      - Public
    properties:
      - url: https://steamcommunity.com/dev
        type: Documentation
      - url: https://partner.steamgames.com/doc/webapi
        type: API Reference
    description: >-
      ISteamNews exposes per-game news feeds via GetNewsForApp. Path pattern http://api.steampowered.com/ISteamNews/<method>/v<version>/.
  - aid: steam:steam-user-stats-api
    name: ISteamUserStats
    tags:
      - Stats
      - Achievements
      - Global Stats
      - Schema
    properties:
      - url: https://partner.steamgames.com/doc/webapi/ISteamUserStats
        type: API Reference
    description: >-
      ISteamUserStats provides global achievement percentages, schema for game stats and achievements, and per-user achievement / stats retrieval (GetGlobalAchievementPercentagesForApp, GetSchemaForGame, GetUserStatsForGame, GetPlayerAchievements, etc.).
  - aid: steam:steam-user-api
    name: ISteamUser
    tags:
      - Users
      - Profiles
      - Friends
      - Bans
    properties:
      - url: https://partner.steamgames.com/doc/webapi/ISteamUser
        type: API Reference
    description: >-
      ISteamUser exposes player profile, friend list, and ban-status endpoints (GetPlayerSummaries, GetFriendList, GetPlayerBans, ResolveVanityURL).
  - aid: steam:steam-user-auth-api
    name: ISteamUserAuth
    tags:
      - Authentication
      - Sessions
      - Tickets
    properties:
      - url: https://partner.steamgames.com/doc/webapi/ISteamUserAuth
        type: API Reference
    description: >-
      ISteamUserAuth issues and validates Steam session tickets (AuthenticateUserTicket, AuthenticateUser) used by partner servers to verify a connecting player's Steam identity.
  - aid: steam:steam-apps-api
    name: ISteamApps
    tags:
      - Apps
      - Catalog
      - Servers
    properties:
      - url: https://partner.steamgames.com/doc/webapi/ISteamApps
        type: API Reference
    description: >-
      ISteamApps exposes catalog and server queries (GetAppList, GetServersAtAddress, UpToDateCheck) used to enumerate Steam applications and validate version state.
  - aid: steam:steam-community-api
    name: ISteamCommunity
    tags:
      - Community
      - Reports
    properties:
      - url: https://partner.steamgames.com/doc/webapi/ISteamCommunity
        type: API Reference
    description: >-
      ISteamCommunity provides restricted access to Steam Community features (e.g., ReportAbuse) for trusted partners.
  - aid: steam:steam-economy-api
    name: ISteamEconomy
    tags:
      - Economy
      - Trades
      - Asset Class
    properties:
      - url: https://partner.steamgames.com/doc/webapi/ISteamEconomy
        type: API Reference
    description: >-
      ISteamEconomy is a secondary economy-system interface (GetAssetClassInfo, GetAssetPrices, FinalizeAssetTransaction) used to look up asset metadata and pricing for in-game items.
  - aid: steam:steam-game-inventory-api
    name: IGameInventory
    tags:
      - Inventory
      - Items
      - Economy
    properties:
      - url: https://partner.steamgames.com/doc/webapi/IGameInventory
        type: API Reference
    description: >-
      IGameInventory is the primary inventory-economy interface used by partner servers to manipulate item ownership (AddItem, ConsumeItem, GetUserInventory, GetItemDefArchive).
  - aid: steam:steam-inventory-service-api
    name: IInventoryService
    tags:
      - Inventory
      - Items
      - Service
    properties:
      - url: https://partner.steamgames.com/doc/webapi/IInventoryService
        type: API Reference
    description: >-
      IInventoryService is the modern Steam Inventory Service interface used to add/remove/exchange items, manage definitions, and query inventories at scale.
  - aid: steam:steam-game-server-api
    name: ISteamGameServer
    tags:
      - Game Servers
      - Sessions
      - Login Tokens
    properties:
      - url: https://partner.steamgames.com/doc/webapi/ISteamGameServer
        type: API Reference
    description: >-
      ISteamGameServer issues and manages persistent Game Server Login Tokens (GSLTs) used by dedicated game servers to authenticate to Steam.
  - aid: steam:steam-remote-storage-api
    name: ISteamRemoteStorage
    tags:
      - Remote Storage
      - Cloud Saves
      - UGC
    properties:
      - url: https://partner.steamgames.com/doc/webapi/ISteamRemoteStorage
        type: API Reference
    description: >-
      ISteamRemoteStorage exposes Steam Cloud and UGC (user-generated content) storage endpoints — fetching files, retrieving UGC details, and listing published files.
  - aid: steam:steam-leaderboards-api
    name: ISteamLeaderboards
    tags:
      - Leaderboards
      - Scores
    properties:
      - url: https://partner.steamgames.com/doc/webapi/ISteamLeaderboards
        type: API Reference
    description: >-
      ISteamLeaderboards manages per-app leaderboards — creation, score upload/reset, and entry retrieval.
  - aid: steam:steam-player-service-api
    name: IPlayerService
    tags:
      - Players
      - Owned Games
      - Recently Played
      - Badges
    properties:
      - url: https://partner.steamgames.com/doc/webapi/IPlayerService
        type: API Reference
    description: >-
      IPlayerService exposes player-centric endpoints (GetOwnedGames, GetRecentlyPlayedGames, GetSteamLevel, GetBadges, IsPlayingSharedGame).
  - aid: steam:steam-game-notifications-api
    name: IGameNotificationsService
    tags:
      - Notifications
      - In-Game
    properties:
      - url: https://partner.steamgames.com/doc/webapi/IGameNotificationsService
        type: API Reference
    description: >-
      IGameNotificationsService delivers turn-based and prompt-style in-game notifications to players (UpdateNotificationSettings, UserCreateSession).
  - aid: steam:steam-webapi-util-api
    name: ISteamWebAPIUtil
    tags:
      - Utility
      - Server Info
      - Schema
    properties:
      - url: https://partner.steamgames.com/doc/webapi/ISteamWebAPIUtil
        type: API Reference
    description: >-
      ISteamWebAPIUtil provides helper endpoints — GetServerInfo (Steam server time/version) and GetSupportedAPIList (interfaces and methods callable by the API key).
  - aid: steam:steam-publishedfile-api
    name: IPublishedFileService
    tags:
      - Workshop
      - UGC
      - Published Files
    properties:
      - url: https://partner.steamgames.com/doc/webapi/IPublishedFileService
        type: API Reference
    description: >-
      IPublishedFileService manages Steam Workshop / UGC published files — query, vote, change visibility, manage tags and previews.
  - aid: steam:steam-broadcast-api
    name: IBroadcastService
    tags:
      - Broadcast
      - Streaming
      - Game Live
    properties:
      - url: https://partner.steamgames.com/doc/webapi/IBroadcastService
        type: API Reference
    description: >-
      IBroadcastService exposes Steam game-broadcast metadata and stream-discovery endpoints used for in-app broadcast lookups.
  - aid: steam:steam-storefront-api
    name: Steam Store API
    tags:
      - Store
      - Pricing
      - App Details
    properties:
      - url: https://store.steampowered.com/api/appdetails
        type: API Reference
    description: >-
      An unofficial-but-widely-used set of storefront endpoints (https://store.steampowered.com/api/) returns app details, package details, currency conversion, and feature lists. Used by community sites and third-party catalogs.
  - aid: steam:steam-checkout-api
    name: ISteamCheckout
    tags:
      - Checkout
      - In-Game Purchases
      - Microtransactions
    properties:
      - url: https://partner.steamgames.com/doc/webapi/ISteamCheckout
        type: API Reference
    description: >-
      ISteamCheckout is the partner-only interface used to initiate, authorize, and finalize in-game microtransaction purchases through Steam Checkout.
  - aid: steam:steam-microtxn-api
    name: ISteamMicroTxn
    tags:
      - Microtransactions
      - Payments
      - Refunds
    properties:
      - url: https://partner.steamgames.com/doc/webapi/ISteamMicroTxn
        type: API Reference
    description: >-
      ISteamMicroTxn / ISteamMicroTxnSandbox handle the full microtransaction lifecycle — InitTxn, FinalizeTxn, GetReport, RefundTxn, QueryTxn — used by F2P and live-service titles.
  - aid: steam:steam-deeplinkservice-api
    name: ISteamDeepLinkService
    tags:
      - Deep Links
      - Marketing
    properties:
      - url: https://partner.steamgames.com/doc/webapi/ISteamDeepLinkService
        type: API Reference
    description: >-
      ISteamDeepLinkService creates and resolves time-limited deep links into the Steam client and store, useful for marketing campaigns and partner referrals.
common:
  - type: Website
    url: https://store.steampowered.com/
  - type: Documentation
    url: https://partner.steamgames.com/doc/home
  - type: API Reference
    url: https://partner.steamgames.com/doc/webapi
  - type: Public Web API Docs
    url: https://steamcommunity.com/dev
  - type: Getting Started
    url: https://partner.steamgames.com/doc/gettingstarted
  - type: API Key Registration
    url: https://steamcommunity.com/dev/apikey
  - type: Steam Direct
    url: https://partner.steamgames.com/steamdirect
  - type: Steamworks SDK
    url: https://partner.steamgames.com/doc/sdk
  - type: Steam Workshop Docs
    url: https://partner.steamgames.com/doc/features/workshop
  - type: Sign Up
    url: https://partner.steamgames.com/
  - type: Login
    url: https://store.steampowered.com/login/
  - type: Status
    url: https://steamstat.us/
  - type: Status (Official)
    url: https://store.steampowered.com/stats/
  - type: Steam Store
    url: https://store.steampowered.com/
  - type: Steam Community
    url: https://steamcommunity.com/
  - type: Steamworks Discord
    url: https://discord.gg/steamworks
  - type: Steamworks Documentation
    url: https://partner.steamgames.com/doc
  - type: Privacy Policy
    url: https://store.steampowered.com/privacy_agreement/
  - type: Subscriber Agreement
    url: https://store.steampowered.com/subscriber_agreement/
  - type: Steam Web API Terms of Use
    url: https://steamcommunity.com/dev/apiterms
  - type: Steamworks Forum
    url: https://steamcommunity.com/groups/steamworks
  - type: Plans
    url: plans/steam-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/steam-rate-limits.yml
  - type: FinOps
    url: finops/steam-finops.yml
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com