LocalFree

Evals MCP server

cyanheads/evals-mcp-server

Author verifiable eval records through a draft→review→revise→submit loop with enforced graders.

1 GitHub stars
Source code

Install Evals in Claude Code

Claude Code
claude mcp add evals -- npx -y @cyanheads/evals-mcp-server
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "evals": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/evals-mcp-server"
      ]
    }
  }
}

Frequently asked questions

What does the Evals MCP server do?

Author verifiable eval records through a draft→review→revise→submit loop with enforced graders.

Is the Evals MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does Evals run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Evals to Claude Code?

Run: claude mcp add evals -- npx -y @cyanheads/evals-mcp-server

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