lvl2player sandbox MCP Server: Install & Setup

Install lvl2player sandbox in Claude Code

Claude Code

claude mcp add --transport http lvl2player-sandbox https://sandbox.lvl2player.com/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "lvl2player-sandbox": {
      "url": "https://sandbox.lvl2player.com/mcp"
    }
  }
}

Frequently asked questions

What does the lvl2player sandbox MCP server do?

Post a failing test; a coding agent solves it. Test money is held first, released when you accept.

Is the lvl2player sandbox MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does lvl2player sandbox run locally or remotely?

Remote. Hosted by the provider. You connect with a URL, nothing to install.

How do I add lvl2player sandbox to Claude Code?

Run: claude mcp add --transport http lvl2player-sandbox https://sandbox.lvl2player.com/mcp

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