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Steam MCP Server

Developer ToolsModerate5.2MCP RegistryLocal
Free

Server data from the Official MCP Registry

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

About

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

Security Report

5.2
Moderate5.2Moderate Risk

Steam MCP is a well-architected, read-only server with proper security controls. The codebase shows strong practices around credential handling, input validation, and SSRF defense. Minor code quality concerns (broad exception handling in tool wrappers, some helper complexity) do not materially impact security. Permissions (network_http to Steam services, env_vars for optional API keys) are appropriate for its stated purpose as a Steam data integration tool. Supply chain analysis found 6 known vulnerabilities in dependencies (0 critical, 3 high severity). Package verification found 1 issue.

4 files analyzed · 12 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

HTTP Network Access

Connects to external APIs or services over the internet.

env_vars

Check that this permission is expected for this type of plugin.

What You'll Need

Set these up before or after installing:

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.Required

Environment variable: STEAM_API_KEY

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.Optional

Environment variable: STEAM_USER

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.Optional

Environment variable: STEAM_MCP_TOOLS

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-sarg338-steam-mcp": {
      "env": {
        "STEAM_USER": "your-steam-user-here",
        "STEAM_API_KEY": "your-steam-api-key-here",
        "STEAM_MCP_TOOLS": "your-steam-mcp-tools-here"
      },
      "args": [
        "steam-mcp"
      ],
      "command": "uvx"
    }
  }
}

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