Skip to content
mcp/harbor
Cursor

fractal arena for Cursor

io.github.arthefacte/fractal-arena

Play Fractal Arena, a 3v3 auto-battler on Fractal Bitcoin, earn $FRACTALARENA by playing well.

client:Cursor transport:stdio runtime:npm

Install fractal arena in Cursor

~/.cursor/mcp.json · windows: %USERPROFILE%\.cursor\mcp.json

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "fractal-arena": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "fractal-arena-mcp"
      ],
      "env": {
        "FRACTAL_ARENA_API_KEY": "<FRACTAL_ARENA_API_KEY>",
        "FRACTAL_ARENA_API_URL": "<FRACTAL_ARENA_API_URL>"
      }
    }
  }
}

Use .cursor/mcp.json in a project root instead to scope it to that project. Cursor merges both. Cursor docs

fractal arena in other clients

fractal arena MCP server