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

steam-mcp-server