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steam-mcp

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


Installation

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:

Restart Claude Code after install to activate.


Prerequisites


Add to Claude Desktop

Edit your Claude Desktop config file:

  • macOS: ~/Library/Application Support/Claude/claude_desktop_config.json

  • Windows: %APPDATA%\Claude\claude_desktop_config.json

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

Restart Claude Desktop after saving.


Add to Gemini CLI

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"
      }
    }
  }
}

Slash Commands (Claude Code)

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 both players own - sorted by combined playtime

/steam:vac

<steamid1> [steamid2] ...

VAC/ban check for one or multiple players at once

Examples

/steam:profile stealthylabs
/steam:game Battlefield 6
/steam:trend Rust
/steam:all 76561199832263296
/steam:library stealthylabs
/steam:achievements stealthylabs Resident Evil Requiem
/steam:coop stealthylabs gabelogannewell
/steam:vac 76561199832263296 76561197960287930

Available MCP Tools

Tool

Description

steam_resolve_vanity_url

Convert a vanity URL (e.g. gabelogannewell) to a SteamID64

steam_get_player_summary

Public profile: name, status, avatar, country, currently playing

steam_get_friend_list

Friend list with names and dates (resolve_names param)

steam_get_player_bans

VAC/game/community ban status for 1-100 accounts

steam_get_owned_games

Game library with playtime, sortable and filterable

steam_get_recently_played

Games played in the last 2 weeks

steam_get_achievements

Player achievement progress - filter by locked/unlocked/all

steam_get_global_achievement_stats

Global unlock rates (easiest/hardest achievements)

steam_get_game_schema

Full list of achievements and stats defined by a game

steam_search_game

Search by name - returns AppID, price, Metacritic score

steam_get_current_players

Number of players currently in-game for any app


Example prompts

Look up the Steam profile for "stealthylabs"

What are my 10 most played games? (SteamID: 76561198XXXXXXXXX)

Show me the global achievement stats for Grand Theft Auto V Legacy

Which games have I bought but never launched?

Is Rust still worth buying in terms of player activity?

Local test (without Claude Code)

# Test the server responds to MCP protocol
echo '{"jsonrpc":"2.0","id":1,"method":"tools/list"}' | STEAM_API_KEY=YOUR_KEY node dist/index.js

# Or with .env file
npm start
# then pipe JSON manually or use MCP Inspector:
npx @modelcontextprotocol/inspector node dist/index.js

Development

npm run dev      # hot reload via tsx
npm run build    # compile TypeScript → dist/
npm run lint     # tsc type-check only
npm test         # unit tests
A
license - permissive license
-
quality - not tested
C
maintenance

Resources

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Looking for Admin?

If you are the server author, to access and configure the admin panel.

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