Steam MCP Server

An MCP server for Steam: search games and read store details, prices, reviews, discounts and news (no key), plus player profiles, libraries and achievements via the official Steam Web API (free key).

Read-only · official Steam APIs only · most tools need no key · open source. Nobody logs in; the only credential is a free Steam Web API key you set yourself, and the server never writes, trades, posts, launches games, or makes purchases.

Works with any MCP client (Claude Desktop/Code, Cursor, VS Code, Cline, …) over stdio.

Once it's connected, just ask your agent in natural language.

No credentials needed (store, search & discovery):

"Find Hollow Knight and tell me its price, genres and age rating."
"What are recent reviews saying about Baldur's Gate 3?"
"Have Cyberpunk 2077's reviews recovered since launch?"
"Which games are >80% off right now with 90%+ positive reviews?"
"Find roguelike deckbuilders on sale."
"What discounted games run natively on macOS?"
"Which recent, well-reviewed games run on Steam Deck?"
"What well-reviewed games run on SteamOS?"
"Any games verified for the Steam Machine on sale?"
"Any Steam Frame–Verified VR games on sale?"
"What's discounted on Steam's front page right now?"
"Show me Steam's top sellers and newest releases."
"Any recent patch notes for No Man's Sky?"
"How rare is each achievement in Elden Ring?"
"How many people are playing Counter-Strike 2 right now?"
"Get current prices for appids 620, 413150 and 1145360."
"For appids 1245620 and 1086940, show price, review % and Deck / SteamOS / Machine / Frame status."

With a free API key + your STEAM_ID (your account; see Getting your credentials):

"Show my Steam profile."
"List my games by playtime."
"What have I played in the last two weeks?"
"Recommend something I'd like based on my library, on a good discount."
"Do I already own Hollow Knight and Hades?"
"What's on my wishlist that's discounted and well-reviewed?"
"List Hollow Knight's achievements and how rare each one is."
"How far am I through Elden Ring's achievements?"
"What's the SteamID64 for the profile name 'gabelogannewell'?"
"Which of my friends own Portal 2, and how many hours have they played?"
"What games do my friend and I both own, and who's played them more?"
"Show me my Steam friends list."
"Is SteamID 76561197960287930 VAC banned?"
"What games am I following that aren't on my wishlist?"

Install

Add it to your MCP client's config. Store/search tools work with no credentials; player tools need a free Steam Web API key.

{
  "mcpServers": {
    "steam": {
      "command": "npx",
      "args": ["-y", "steam-games-mcp"],
      "env": {
        "STEAM_API_KEY": "your-steam-web-api-key (optional — enables player tools)",
        "STEAM_ID": "your-steamid64-or-vanity-name (optional — default 'you' for player tools)",
        "STEAM_COUNTRY": "US (optional — store price region)",
        "STEAM_LANGUAGE": "english (optional — store language)"
      }
    }
  }
}

Replace each value with your own; remove the optional lines you don't need. A free key comes from https://steamcommunity.com/dev/apikey. From source: `npm ci && npm run bui

... View full README on GitHub