opencritic-mcp

An MCP (Model Context Protocol) server that gives AI assistants access to OpenCritic game review scores via the official OpenCritic API on RapidAPI.

Search for games and retrieve aggregated critic scores, review tiers, and individual reviews — all without scraping. For full API endpoints and response specs, see the OpenCritic API Documentation.

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Tools

Tool	Parameters	Description
search_game	query (string)	Search by game title — returns up to 10 matches with IDs
get_game	id (number), platform? (string)	Get critic score, % recommended, tier, developer, publisher, platforms, genres, loot boxes, and box art. Filter by platform (e.g. 'PC', 'PS5', 'Xbox').
get_game_reviews	id (number), platform? (string), limit? (number)	Get individual critic reviews (outlet, score, author, language, platform tags, excerpt, link). Filter by platform.

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Prerequisites

• Node.js v18 or later
• A free RapidAPI key for the OpenCritic API

Getting a RapidAPI key

1. Go to rapidapi.com/opencritic/api/opencritic-api
2. Sign up or log in (free)
3. Subscribe to the Basic plan (free tier: 200 requests/day, 25 searches/day)
4. Copy your X-RapidAPI-Key from the dashboard

Your key is only ever used locally. It is read from an environment variable at runtime and never stored in the package.

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Installation

Option A — npx (no install required)

{
  "mcpServers": {
    "opencritic": {
      "command": "npx",
      "args": ["-y", "opencritic-mcp"],
      "env": {
        "RAPIDAPI_KEY": "your_rapidapi_key_here"
      }
    }
  }
}

Option B — Clone and build locally

git clone https://github.com/brandikun/opencritic-mcp.git
cd opencritic-mcp
npm install
npm run build

Then add to your MCP config:

{
  "mcpServers": {
    "opencritic": {
      "command": "node",
      "args": ["/absolute/path/to/opencritic-mcp/dist/index.js"],
      "env": {
        "RAPIDAPI_KEY": "your_rapidapi_key_here"
      }
    }
  }
}

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MCP Client Config Locations

Client	Config file
Antigravity / AGY	~/.gemini/antigravity-cli/settings.json
Claude Desktop	~/Library/Application Support/Claude/claude_desktop_config.json (macOS)
Claude Desktop (Windows)	%APPDATA%\Claude\claude_desktop_config.json

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Example usage

Once connected, you can ask your AI assistant things like:

• "Search for Hollow Knight on OpenCritic"
• "What's the critic score for Disco Elysium?"
• "Show me the top critic reviews for Elden Ring"
• "Cross-reference my Steam library with OpenCritic scores" (when paired with a Steam MCP)

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Security notes

• Your RAPIDAPI_KEY is passed via environment variable — it never appears in source code or gets committed to git
• The server uses only Node's built-in fetch and the official MCP SDK — no third-party HTTP clients
• If RAPIDAPI_KEY is missing, the server exits immediately with a clear error message

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Free tier limits & Caching

Limit	Value
Requests per day	200
Searches per day	25
Requests per second	4

Built-in Caching: To protect your daily RapidAPI quota, responses are cached in memory for 1 hour. Repeated detail or review queries cost 0 API requests.

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License

MIT