Arena Predictions

Install Arena Predictions for Claude Desktop

Claude Desktop reads mcpServers from claude_desktop_config.json. Restart the app after saving.

1. Open ~/Library/Application Support/Claude/claude_desktop_config.json on macOS, %APPDATA%\Claude\claude_desktop_config.json on Windows, or ~/.config/Claude/claude_desktop_config.json on Linux.
2. Paste the JSON config below.
3. Replace placeholder secrets, then restart the client if it does not reload on its own.

{
  "mcpServers": {
    "arena-predictions-arena": {
      "command": "npx",
      "args": [
        "-y",
        "arena-mcp-server@0.6.0"
      ],
      "env": {
        "ARENA_MCP_ALLOW_TRADE": "0",
        "ARENA_ALLOW_RESET": "0",
        "ARENA_MCP_ALLOW_KEYS": "0",
        "ARENA_CREDENTIALS_FILE": "",
        "ARENA_API_KEY": "YOUR_ARENA_API_KEY",
        "ARENA_API_KEY_FILE": ""
      }
    }
  }
}

Official Claude Desktop docs