Lumen MCP Server

What the code does

We read the source, 1 d ago · rules ccca72095570

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

  const child = spawn(

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Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

claude mcp add lumen -- npx -y @lumen-seo/cli

{
  "mcpServers": {
    "lumen": {
      "args": [
        "-y",
        "@lumen-seo/cli"
      ],
      "command": "npx"
    }
  }
}

[mcp_servers.lumen]
command = "npx"
args = ["-y", "@lumen-seo/cli"]

{
  "mcpServers": {
    "lumen": {
      "args": [
        "-y",
        "@lumen-seo/cli"
      ],
      "command": "npx"
    }
  }
}

{
  "mcpServers": {
    "lumen": {
      "args": [
        "-y",
        "@lumen-seo/cli"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: LUMEN_PSI_KEY (Google PageSpeed Insights API key — enables the CWV lab leg of page reports. Optional; without it that leg reports not-configured.), LUMEN_CRUX_KEY (Chrome UX Report API key — enables field CWV data. Optional; without it that leg reports not-configured.), LUMEN_OPR_KEY (Open PageRank API key — enables the OPR authority signal. Optional; without it that signal reports not-configured.). The author declared them in the registry entry; get the values from the project itself.