Steam MCP Server

MCP Server for the Steam Web API — access player profiles, game libraries, achievements, news, friend lists, and store search through Claude.

Overview

This Model Context Protocol (MCP) server connects Claude to the Steam Web API, providing 20 tools across 6 modules:

• Player — profiles, levels, vanity URL resolution, bans, badges
• Library — owned games, recently played, wishlist
• Game Info — store details, news, live player counts, reviews
• Achievements — player progress, global unlock percentages, game schema, per-game stats
• Social — friends list, group memberships
• Discovery — Steam store search, featured games & sales

Requirements

• Node.js 20+
• Steam Web API Key — get one at steamcommunity.com/dev/apikey

Installation

Just ask Claude to install this MCP server using the repo URL:

Install the MCP server from https://github.com/matheusslg/steam-mcp

Claude will handle cloning, building, and configuring it for you.

Quick Start (Manual)

# Clone
git clone https://github.com/matheusslg/steam-mcp.git
cd steam-mcp

# Install & build
npm install
npm run build

# Add to Claude Code
claude mcp add steam -e STEAM_API_KEY=your_key_here -- node /absolute/path/to/steam-mcp/dist/index.js

Or add it manually to your MCP config:

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

Configuration

Variable	Required	Description
STEAM_API_KEY	Yes	Your Steam Web API key
STEAM_ID	No	Default 64-bit Steam ID (used when steam_id parameter is omitted)

Available Tools

Player

Tool	Description
get_player_summary	Profile info — display name, avatar, online status, current game, account age
get_steam_level	Account level for a player
resolve_vanity_url	Convert a custom profile URL to a 64-bit Steam ID
get_player_bans	Check VAC ban, game ban, community ban, and trade ban status
get_badges	Badge collection with XP breakdown, player level, and XP to next level

Library

Tool	Description
get_owned_games	Full game library with playtime — sortable by playtime, name, or recent
get_recently_played_games	Games played in the last two weeks with playtime breakdown
get_wishlist	A player's Steam wishlist (depends on privacy settings)

Game Info

Tool	Description
get_game_details	Store page data — price, genres, Metacritic, platforms, release date
get_game_news	Recent news articles for a game
get_player_count	Current number of online players for a game
get_game_reviews	Reviews with sentiment summary (score, positive/negative) and review text

Achievements

Tool	Description
get_player_achievements	A player's achievement progress for a specific game
get_global_achievement_percentages	Global unlock rates — how rare each achievement is
get_game_schema	Full list of stats and achievements with display names, descriptions, icons
get_user_stats_for_game	A player's per-game stats (kills, wins, etc.) — varies per game

Social

Tool	Description
get_friends_list	A player's friends list with friendship dates
get_user_groups	Steam group IDs a player belongs to

Discovery

Tool	Description
search_apps	Search the Steam store by name — returns App IDs, prices, and Metascores
get_featured_games	Featured store categories: sales, top sellers, new releases, coming soon

Usage Examples

Just ask Claude naturally — it will combine tools as needed.

Game Library Analysis

"How much is my Steam library worth?"
"Show me my shame list — games I own but have 0 hours played"
"What am I actually playing? Show me my last two weeks"

Achievement Hunting

"What are my rarest achievements? Find ones less than 5% of players have"
"Which games am I closest to 100% completion on?"
"Give me an achievement difficulty report for Elden Ring"

Social / Friends

"What are my friends playing right now?"
"Compare my game library with my friend's — what do we both own?"
"Rank my friends by Steam level"
"Who's the OG? Rank my friends by account creation date"

Game Intel

"Is Battlefield 2042 alive? Check the player count"
"Get me a news digest for the games I've played recently"
"Look up Celeste on Steam — price, reviews, the works"

Bans & Trust

"Is this player legit? Check their VAC ban history"
"How many bans does player X have?"

Wishlist & Reviews

"What's on my Steam wishlist?"
"Show me the reviews for Elden Ring — what are people saying?"
"What's the review score for Cyberpunk 2077?"

Store & Sales

"What's on sale on Steam right now?"
"Show me the top sellers and new releases on Steam"

Game Stats

"Show me my Counter-Strike stats — kills, deaths, wins"
"What are all the possible achievements for Hades?"

Fun Stats

"Roast my Steam profile — age, level, games owned vs played, hours wasted"
"What games define my friend group? Most commonly owned games across all my friends"
"Give me my Counter-Strike addiction report"

Project Structure

steam-mcp/
├── src/
│   ├── index.ts              # Server entry point
│   ├── config.ts             # Environment config & Steam ID resolution
│   ├── types.ts              # Steam API response interfaces
│   ├── api/
│   │   ├── client.ts         # HTTP client with retry logic
│   │   └── endpoints.ts      # Steam API endpoint constants
│   └── tools/
│       ├── player.ts         # get_player_summary, get_steam_level, resolve_vanity_url, get_player_bans, get_badges
│       ├── library.ts        # get_owned_games, get_recently_played_games, get_wishlist
│       ├── game-info.ts      # get_game_details, get_game_news, get_player_count, get_game_reviews
│       ├── achievements.ts   # get_player_achievements, get_global_achievement_percentages, get_game_schema, get_user_stats_for_game
│       ├── social.ts         # get_friends_list, get_user_groups
│       └── discovery.ts      # search_apps, get_featured_games
├── package.json
├── tsconfig.json
├── LICENSE
└── README.md

Development

npm run build       # Compile TypeScript
npm run dev         # Watch mode
npm run start       # Run the server
npm run clean       # Remove dist/

License

MIT