Steam MCP Server

An MCP (Model Context Protocol) server that provides tools for interacting with the Steam Web API.

Setup

1. Get a Steam API Key

Obtain an API key from Steam's developer portal.

2. Install Dependencies

npm install

3. Build

npm run build

4. Configure Your MCP Client

Claude Code

Add to your Claude Code settings file (~/.claude/settings.json):

{
  "mcpServers": {
    "steam": {
      "command": "node",
      "args": ["/path/to/steam-mcp-server/dist/index.js"],
      "env": {
        "STEAM_API_KEY": "your-api-key-here",
        "STEAM_ID": "your-64-bit-steam-id"
      }
    }
  }
}

Or use npx (no build required):

{
  "mcpServers": {
    "steam": {
      "command": "npx",
      "args": ["-y", "steam-mcp-server"],
      "env": {
        "STEAM_API_KEY": "your-api-key-here",
        "STEAM_ID": "your-64-bit-steam-id"
      }
    }
  }
}

Claude Desktop

Add to your Claude Desktop configuration:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "steam": {
      "command": "npx",
      "args": ["-y", "steam-mcp-server"],
      "env": {
        "STEAM_API_KEY": "your-api-key-here",
        "STEAM_ID": "your-64-bit-steam-id"
      }
    }
  }
}

Cursor

Add to Cursor's MCP settings (.cursor/mcp.json in your project or global config):

{
  "mcpServers": {
    "steam": {
      "command": "npx",
      "args": ["-y", "steam-mcp-server"],
      "env": {
        "STEAM_API_KEY": "your-api-key-here",
        "STEAM_ID": "your-64-bit-steam-id"
      }
    }
  }
}

Windsurf

Add to Windsurf's MCP configuration (~/.windsurf/mcp.json):

{
  "mcpServers": {
    "steam": {
      "command": "npx",
      "args": ["-y", "steam-mcp-server"],
      "env": {
        "STEAM_API_KEY": "your-api-key-here",
        "STEAM_ID": "your-64-bit-steam-id"
      }
    }
  }
}

Environment Variables

Variable	Required	Description
STEAM_API_KEY	Yes	Your Steam Web API key
STEAM_ID	No	Default Steam ID to use when not specified in tool calls

When STEAM_ID is set, you can call tools like get_owned_games without passing a Steam ID - it will use your default profile automatically.

Available Tools

Social & Profile

Tool	Description
get_player_summary	Get player profile info (name, avatar, status, current game)
get_friends_list	Get a player's friends list
get_steam_level	Get player's Steam account level
get_badges	Get player's badges, XP, and level progression
get_badge_progress	Get trading card collection progress
get_player_bans	Check for VAC bans, game bans, or trade bans
get_user_groups	Get Steam groups a player belongs to
resolve_vanity_url	Convert vanity URL to 64-bit Steam ID

Game Library

Tool	Description
get_owned_games	Get all games owned with playtime stats (supports pagination)
get_recently_played	Get games played in last 2 weeks
get_game_details	Get detailed game info (description, price, requirements)
is_playing_shared_game	Check if playing via Steam Family Sharing
search_apps	Search Steam catalog by game name

Achievements & Stats

Tool	Description
get_achievements	Get player's achievements for a game
get_game_stats	Get player's statistics for a game
get_global_achievement_percentages	Get global achievement unlock rates
get_global_game_stats	Get global aggregated stats for a game
get_perfect_games	Get games where player has 100% achievements
get_achievement_summary	Get condensed achievement progress across games
get_game_schema	Get achievement/stat definitions for a game

Game Info

Tool	Description
get_game_news	Get latest news and patch notes for a game
get_player_count	Get current number of players in a game
get_servers_at_address	Get game servers at a specific IP
check_app_update	Check if an app version is up to date

Inventory

Tool	Description
get_inventory	Get inventory for any game (requires public profile)
get_tf2_inventory	Get Team Fortress 2 inventory
get_csgo_inventory	Get CS2/CSGO inventory
get_dota2_inventory	Get Dota 2 inventory

Finding Your Steam ID

Use resolve_vanity_url with your custom profile URL, or find your 64-bit Steam ID at steamid.io.

License

MIT