Steam (read-only) — Claude Code MCP server: what it does
Connects your assistant to the Steam storefront and public profile data in read-only mode. Helps plan co-op nights and monitor discounts.
claude mcp add --env STEAM_API_KEY=<STEAM_API_KEY> --env STEAM_USER=<STEAM_USER> --env STEAM_MCP_TOOLS=<STEAM_MCP_TOOLS> --transport stdio steam-read-only -- uvx steam-mcpWhat Steam (read-only) does
This server supplies 41 tools, 5 prompts, and 2 resources for querying Steam data. It remains strictly read-only. It never enters account credentials, launches binaries, initiates trades, or buys items.
You can use 19 tools immediately without any API key. The assistant queries storefront entries, live player counts, recent reviews, and Steam Deck verification tiers. To inspect personal libraries and friend lists, set STEAM_API_KEY.
Account queries fail if the target Steam profile is private. Passing STEAM_USER saves time by defaulting personal lookups to your own profile name.
What it helps with
- find co-op titles owned by you and online friends
- inspect Steam Deck verification and test results
- track storefront sales, tags, and review trends
- inspect backlog hours and abandoned games in a library
- check global and personal achievement unlock percentages
Example prompts for the agent
- Which co-op games are currently discounted under $20?
- Check if Hades II is verified for Steam Deck.
- What multiplayer games do my online friends and I both own?
How to install Steam (read-only)
Platform CLI
claude mcp add --env STEAM_API_KEY=<STEAM_API_KEY> --env STEAM_USER=<STEAM_USER> --env STEAM_MCP_TOOLS=<STEAM_MCP_TOOLS> --transport stdio steam-read-only -- uvx steam-mcpReplace <…> with your own values. uvx runs the command named after the package; if the README names another one, use uvx --from steam-mcp <command>
Platform CLI
codex mcp add steam-read-only --env STEAM_API_KEY=<STEAM_API_KEY> --env STEAM_USER=<STEAM_USER> --env STEAM_MCP_TOOLS=<STEAM_MCP_TOOLS> -- uvx steam-mcpReplace <…> with your own values. uvx runs the command named after the package; if the README names another one, use uvx --from steam-mcp <command>
Config file
{
"mcpServers": {
"steam-read-only": {
"command": "uvx",
"args": [
"steam-mcp"
],
"env": {
"STEAM_API_KEY": "<STEAM_API_KEY>",
"STEAM_USER": "<STEAM_USER>",
"STEAM_MCP_TOOLS": "<STEAM_MCP_TOOLS>"
}
}
}
}Replace <…> with your own values. uvx runs the command named after the package; if the README names another one, use uvx --from steam-mcp <command>
Config file
{
"servers": {
"steam-read-only": {
"type": "stdio",
"command": "uvx",
"args": [
"steam-mcp"
],
"env": {
"STEAM_API_KEY": "<STEAM_API_KEY>",
"STEAM_USER": "<STEAM_USER>",
"STEAM_MCP_TOOLS": "<STEAM_MCP_TOOLS>"
}
}
}
}Replace <…> with your own values. uvx runs the command named after the package; if the README names another one, use uvx --from steam-mcp <command>
Platform CLI
gemini mcp add -e STEAM_API_KEY=<STEAM_API_KEY> -e STEAM_USER=<STEAM_USER> -e STEAM_MCP_TOOLS=<STEAM_MCP_TOOLS> steam-read-only uvx steam-mcpReplace <…> with your own values. uvx runs the command named after the package; if the README names another one, use uvx --from steam-mcp <command>
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 (read-only)
How do I install Steam (read-only) in Claude Code?
Run claude mcp add steam-mcp -e STEAM_API_KEY=<STEAM_API_KEY> -- uvx steam-mcp.
What does Steam (read-only) do?
It reads public Steam store data, achievements, player counts, and profile stats. It cannot make purchases, modify items, or launch games.
Do I need an API key to run this server?
Not for the 19 storefront tools. A free STEAM_API_KEY is required only when requesting profile-specific information like friends, inventory, or owned titles.
