Grinv/steam-games-mcp

An MCP server for **Steam**: search games and
read store details, prices, reviews, discounts and news (no key), plus player
profiles, libraries and achievements via the official **Steam Web API** (free key).
**Read-only · official Steam APIs only · most tools need no key · open source.**
Nobody logs in; the only credential is a free Steam Web API key you set yourself,
and the server never writes, trades, posts, launches games, or makes purchases.
Works with any MCP client (Claude Desktop/Code, Cursor, VS Code, Cline, …) over stdio.
Once it's connected, just ask your agent in natural language.
**No credentials needed** (store, search & discovery):
**With a free API key + your STEAM_ID** (your account; see Getting your credentials):
Install
Add it to your MCP client's config. Store/search tools work with **no
credentials**; player tools need a free Steam Web API key.
> Replace each value with your own; remove the optional lines you don't need.
> A free key comes from . **From source:**
> npm ci && npm run build, then use "command": "node",
> "args": ["/ABS/PATH/steam-games-mcp/dist/index.js"].
One-click install (Claude Desktop)
Download **steam-games-mcp.mcpb**
(always the latest release) and open it in Claude Desktop (**Settings → Extensions**), then
fill the optional fields (API key, Steam ID, country, language) in the install form. No JSON editing.
Also listed in the MCP Registry
as io.github.Grinv/steam-games-mcp.
Getting your credentials
Store, search and discovery tools need **nothing**; skip this section if that's
all you want. The **player** tools (profile, library, achievements)
need a free API key, and most also need a public profile — though get_wishlist
and get_followed_games need no key, and profile/ban lookups work on private
profiles. Three short steps:
1. **Get a free Steam Web API key.** Sign in at
, enter any domain (e.g. localhost),
and copy the key into STEAM_API_KEY.
2. **Find your Steam ID.** Set STEAM_ID to either:
- your **vanity name**: the custom part of your profile URL
steamcommunity.com/id/YOUR_NAME → YOUR_NAME (resolved automatically), or
- your **17-digit SteamID64** (steamcommunity.com/profiles/7656…; or look it
up at ).
With STEAM_ID set you can just ask "_my_ wishlist / library"; without it,
give the agent a SteamID64 each time (use resolve_vanity_url to convert a name).
3. **Make your profile public** (for your own library/achievements): Steam →
profile → **Edit Profile** → **Privacy Settings** → set **My profile** and
**Game details** to **Public**.
> The key and Steam ID go in your MCP client config (the env block above). See
> docs/clients.md for per-client examples. Never commit them.
Tools
Key: **–** no credentials · **K** Steam Web API key.
| Tool | Key | Purpose |
| ------------------------- | --- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| search_games | – | Find games by title → appid (with price) |
| get_game | – | Store details by appid **or name**: price, genres, platforms, Metacritic, age rating, DLC, requirements |
| get_items | – | Batch store card (price, review %, **Deck/SteamOS/Machine/Frame** compat, native **platforms**, **tags**) — up to 50 appids |
| discover_games | – | Find games catalog-wide by **discount**, **recency**, **Deck/SteamOS/Machine/Frame**, **platform**, **tags**, rating |
| get_game_reviews | – | Review summary + recent reviews |
| get_review_histogram | – | Review trend over time (history + recent) |