Steam MCP Server — Claude Code MCP server: setup
Lets an AI agent query Steam games, store data, and player accounts. Use it for game discovery, price checks, or library questions.
claude mcp add --env STEAM_API_KEY=<STEAM_API_KEY> --env STEAM_ID=<STEAM_ID> --env STEAM_COUNTRY=<STEAM_COUNTRY> --env STEAM_LANGUAGE=<STEAM_LANGUAGE> --transport stdio steam-mcp-server -- npx -y steam-games-mcpWhat Steam MCP Server does
Steam MCP Server exposes Steam data through MCP. An agent can search for games, inspect prices, discounts, genres, age ratings, reviews, and store news. Store queries work without a credential, so basic discovery needs only the server connection.
Player-focused requests use the free Steam Web API and STEAM_ID. They cover profiles, owned games, achievements, wishlists, and friends. The server runs over stdio with npx -y steam-games-mcp and is read-only: it does not launch games, post content, trade, or buy anything.
Your Steam profile and game details must be public for requests about your own library and achievements. Configuration uses STEAM_API_KEY, STEAM_ID, STEAM_COUNTRY, and STEAM_LANGUAGE; the last two values control the store region and language.
What it helps with
- search Steam by game title
- check current prices and discounts
- read review scores and store details
- track achievement progress and rarity
- inspect a personal game library
Example prompts for the agent
- Find discounted Steam games with strong review scores.
- Show the price, genres, and age rating for appid
620. - Review my library and sort the games by playtime.
How to install Steam MCP Server
Platform CLI
claude mcp add --env STEAM_API_KEY=<STEAM_API_KEY> --env STEAM_ID=<STEAM_ID> --env STEAM_COUNTRY=<STEAM_COUNTRY> --env STEAM_LANGUAGE=<STEAM_LANGUAGE> --transport stdio steam-mcp-server -- npx -y steam-games-mcpReplace <…> with your own values
Platform CLI
codex mcp add steam-mcp-server --env STEAM_API_KEY=<STEAM_API_KEY> --env STEAM_ID=<STEAM_ID> --env STEAM_COUNTRY=<STEAM_COUNTRY> --env STEAM_LANGUAGE=<STEAM_LANGUAGE> -- npx -y steam-games-mcpReplace <…> with your own values
Config file
{
"mcpServers": {
"steam-mcp-server": {
"command": "npx",
"args": [
"-y",
"steam-games-mcp"
],
"env": {
"STEAM_API_KEY": "<STEAM_API_KEY>",
"STEAM_ID": "<STEAM_ID>",
"STEAM_COUNTRY": "<STEAM_COUNTRY>",
"STEAM_LANGUAGE": "<STEAM_LANGUAGE>"
}
}
}
}Replace <…> with your own values
Config file
{
"servers": {
"steam-mcp-server": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"steam-games-mcp"
],
"env": {
"STEAM_API_KEY": "<STEAM_API_KEY>",
"STEAM_ID": "<STEAM_ID>",
"STEAM_COUNTRY": "<STEAM_COUNTRY>",
"STEAM_LANGUAGE": "<STEAM_LANGUAGE>"
}
}
}
}Replace <…> with your own values
Platform CLI
gemini mcp add -e STEAM_API_KEY=<STEAM_API_KEY> -e STEAM_ID=<STEAM_ID> -e STEAM_COUNTRY=<STEAM_COUNTRY> -e STEAM_LANGUAGE=<STEAM_LANGUAGE> steam-mcp-server npx -y steam-games-mcpReplace <…> with your own values
Step by step, with commands for each platform: How to add an MCP server to Claude Code, Codex, Cursor, VS Code, Gemini CLI and more
Questions about Steam MCP Server
How do I install Steam MCP Server in Claude Code?
Run claude mcp add steam-games-mcp -e STEAM_API_KEY=<STEAM_API_KEY> -- npx -y steam-games-mcp. This registers the server and starts it through npx.
What does Steam MCP Server do?
It lets an agent search Steam and read game data such as prices, discounts, reviews, and news. With the Steam Web API, it can also query player profiles, libraries, and achievements.
What is required to query a Steam library?
Use a free Steam Web API key and set STEAM_ID; your profile and game details must be public for personal library and achievement requests. Store search and discovery features need no key.
