LaunchBox

An MCP server that lets AI assistants query your LaunchBox game library. Search your entire game collection across all platforms (Steam, GOG, Epic, emulators, etc.) directly from your AI assistant.

Works with Claude Desktop, Claude Code, or any MCP-compatible client.

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Use Cases

• Send a screenshot of a game bundle and check which ones you already own — fuzzy matching handles OCR errors and typos
• Quick lookups before buying a game on sale
• Browse your library by platform or name
• Check how much time you've spent on a game
• Find installed games you haven't played yet
• See what you're currently playing across platforms

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Setup

Requires Node.js 20+.

1. Have a LaunchBox Installation

You'll need LaunchBox installed with your game data.

2. Configure Your MCP Client

Add the server to your MCP client's configuration. There are two ways to do this:

Option A: Run directly from GitHub (no install needed)

{
  "mcpServers": {
    "launchbox": {
      "command": "npx",
      "args": ["-y", "github:danjam/mcp-launchbox"],
      "env": {
        "LAUNCHBOX_PLATFORMS_PATH": "C:/LaunchBox/Data/Platforms"
      }
    }
  }
}

Option B: Clone and run locally

git clone https://github.com/danjam/mcp-launchbox.git
cd mcp-launchbox
npm install

Then point your MCP client at the local build:

{
  "mcpServers": {
    "launchbox": {
      "command": "node",
      "args": ["/path/to/mcp-launchbox/dist/index.js"],
      "env": {
        "LAUNCHBOX_PLATFORMS_PATH": "C:/LaunchBox/Data/Platforms"
      }
    }
  }
}

Replace /path/to/mcp-launchbox with the actual path where you cloned the project.

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What You Can Do

Search Games

Search the game library by title. Uses fuzzy matching across title and series fields.

Each result includes: id, title, platform, installed status, play time, and a confidence score (0-1, higher is better). Use get_game_details for full metadata.

Tool: search_games

Parameter	Type	Required	Description
query	string	Yes	Search text to match against titles and series
platform	string	No	Filter by platform name
limit	number	No	Max results to return (default 25)

Check Library

Check which games from a list are already in the library. Uses exact title matching first, then fuzzy matching with a 0.85 confidence threshold. Designed for bundle duplicate checking — pass all the titles in one call instead of searching one at a time. Omit platform to check across all platforms (recommended for bundles). Returns matches with confidence scores and a summary of how many you own vs. how many are new.

Tool: check_library

Parameter	Type	Required	Description
games	string[]	Yes	Array of game title strings to look up
platform	string	No	Filter matches to a specific platform
limit	number	No	Max titles to process (default 100)

Get Game Details

Get full details for a specific game by its ID. Returns all metadata including title, platform, developer, genre, series, ratings, and play data such as play count, play time, installed status, and more.

Tool: get_game_details

Parameter	Type	Required	Description
id	string	Yes	The game ID (UUID from search results)
include_notes	boolean	No	Include the Notes field (default false)

List Platforms

List all platforms in the library with their game counts. No parameters needed.

Tool: list_platforms

Find Duplicates

Find duplicate game entries grouped by title — includes cross-platform and same-platform duplicates.

Tool: find_duplicates

Parameter	Type	Required	Description
query	string	No	Optional title filter (fuzzy match)
limit	number	No	Max duplicate groups to return (default 25)

Get Stats

Get library summary statistics (total games, total platforms, top 10 platforms by game count). No parameters needed.

Tool: get_stats

Reload Library

Reload all game data from disk. Use after adding or removing games in LaunchBox. No parameters needed.

Tool: reload_library

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License

MIT