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Agent Referee

io.github.ccheez34/agent-referee ยท v0.4.0

Neutral tie-breaks between AI agents and sealed review of an agent's output, with signed receipts.

Website Source code Set it up

Connect Runs on your machine

Terminal
claude mcp add agent-referee -e AGENT_REFEREE_PRIVATE_KEY=<AGENT_REFEREE_PRIVATE_KEY> -e AGENT_REFEREE_DAILY_LIMIT_USD=<AGENT_REFEREE_DAILY_LIMIT_USD> -- npx -y [email protected]
claude_desktop_config.json
{
  "mcpServers": {
    "agent-referee": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "AGENT_REFEREE_PRIVATE_KEY": "<AGENT_REFEREE_PRIVATE_KEY>",
        "AGENT_REFEREE_DAILY_LIMIT_USD": "<AGENT_REFEREE_DAILY_LIMIT_USD>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "agent-referee": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "AGENT_REFEREE_PRIVATE_KEY": "<AGENT_REFEREE_PRIVATE_KEY>",
        "AGENT_REFEREE_DAILY_LIMIT_USD": "<AGENT_REFEREE_DAILY_LIMIT_USD>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "agent-referee": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "AGENT_REFEREE_PRIVATE_KEY": "<AGENT_REFEREE_PRIVATE_KEY>",
        "AGENT_REFEREE_DAILY_LIMIT_USD": "<AGENT_REFEREE_DAILY_LIMIT_USD>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

NameDescription
AGENT_REFEREE_PRIVATE_KEY
Optional, secret		Optional. Private key of a dedicated Base wallet holding a few dollars of USDC, for paid sealed reviews (also start the server with the x402-fetch package: npx -y -p agent-referee-mcp -p x402-fetch agent-referee-mcp). Free tools work without it.
AGENT_REFEREE_DAILY_LIMIT_USD
Optional		Optional. Most this server may spend per UTC day (default 1.00; 0 turns paid calls off).

Details

Package[email protected] (NPM, stdio)
First published29 Oct 2026
Last updated29 Oct 2026
Registry nameio.github.ccheez34/agent-referee

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