LocalFree

YAML MCP server

mrfentmen/yaml-mcp

Parse, stringify, and validate YAML locally. No network and no key.

Install YAML in Claude Code

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

Frequently asked questions

What does the YAML MCP server do?

Parse, stringify, and validate YAML locally. No network and no key.

Is the YAML 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 YAML run locally or remotely?

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

How do I add YAML to Claude Code?

Run: claude mcp add yaml -- npx -y yaml-mcp

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