Steam (read-only) MCP Server

io.github.Sarg338/steam-mcp

Repository Registry

What is the Steam (read-only) MCP server?

Read-only Steam: friends, games, achievements, sales, plus game recommendations and co-op nights.

How to install Steam (read-only)

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

STEAM_API_KEY
secret
Steam Web API key (optional, free at https://steamcommunity.com/dev/apikey). 19 tools work without it — store, games, reviews, prices, deals, player counts, achievement rarity. A key adds the account tools: library, playtime, friends, achievements, wishlist, inventory.
STEAM_USER
Optional. Your own Steam vanity name, SteamID64, or profile URL, so the account tools default to you when you omit a steamid. Public profile name, not a secret.
STEAM_MCP_TOOLS
Optional. Which tools to load: 'all' (default, 41 tools), 'essentials' (15 tools, a much smaller context footprint), or 'essentials,get_inventory' to add tools by name.

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "steam-mcp": {
      "command": "uvx",
      "args": [
        "steam-mcp"
      ],
      "env": {
        "STEAM_API_KEY": "<YOUR_STEAM_API_KEY>",
        "STEAM_USER": "<YOUR_STEAM_USER>",
        "STEAM_MCP_TOOLS": "<YOUR_STEAM_MCP_TOOLS>"
      }
    }
  }
}

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