steam-mcp

MCP server exposing Steam Web API tools to Claude Code and Gemini CLI.

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One-liner (no clone needed)

macOS / Linux:

curl -fsSL https://raw.githubusercontent.com/StealthyLabsHQ/steam-mcp/main/install.sh | bash

Windows (PowerShell):

irm https://raw.githubusercontent.com/StealthyLabsHQ/steam-mcp/main/install.ps1 | iex

The installer will:

• Clone the repo and build it
• Ask for your Steam API key (get one free at https://steamcommunity.com/dev/apikey)
• Register the MCP server with Claude Code
• Install all /steam:* slash commands

Restart Claude Code after install to activate.

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• Node.js 18+
• Claude Code CLI
• A Steam Web API key → https://steamcommunity.com/dev/apikey

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Edit ~/.gemini/settings.json:

{
  "mcpServers": {
    "steam-mcp": {
      "command": "node",
      "args": ["C:/absolute/path/to/steam-mcp/dist/index.js"],
      "env": {
        "STEAM_API_KEY": "YOUR_KEY_HERE"
      }
    }
  }
}

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Slash commands are available after adding this project to Claude Code. They chain multiple MCP tools automatically and return formatted results with clickable Steam links.

| Command | Arguments | Description | |---------|-----------|-------------| | /steam:profile | <steamid\|vanity> | Public profile + links to profile, friends, library | | /steam:game | <game name> | Search by name - price, Metacritic, live player count | | /steam:trend | <game name> | Health report - price, Metacritic, player count + verdict | | /steam:all | <steamid\|vanity> | Full overview: profile + top games + recent activity + friends | | /steam:library | <steamid\|vanity> | Deep library analysis: backlog %, total hours, gamer profile | | /steam:achievements | <steamid\|vanity> <game name> | Achievement progress crossed with global rarity stats | | /steam:coop | <steamid1> <steamid2> | Find games b