Calibre-Web MCP Server

What the code does

We read the source, 19 h ago · rules ccca72095570

Things with no honest explanation: a promise that contradicts the code, code that runs at install time while hiding what it does, data leaving the machine.

  'metadata.google.internal',

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

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 calibreweb-mcp -- npx -y calibreweb-mcp

{
  "mcpServers": {
    "calibreweb-mcp": {
      "args": [
        "-y",
        "calibreweb-mcp"
      ],
      "command": "npx"
    }
  }
}

[mcp_servers.calibreweb-mcp]
command = "npx"
args = ["-y", "calibreweb-mcp"]

{
  "mcpServers": {
    "calibreweb-mcp": {
      "args": [
        "-y",
        "calibreweb-mcp"
      ],
      "command": "npx"
    }
  }
}

{
  "mcpServers": {
    "calibreweb-mcp": {
      "args": [
        "-y",
        "calibreweb-mcp"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: CALIBRE_WEB_URL (Root URL of the Calibre-Web instance, e.g. https://books.example.com), CALIBRE_WEB_USERNAME (Username of the Calibre-Web account (web login); leave unset together with the password for anonymous-browsing instances), CALIBRE_WEB_PASSWORD (Password of that account (web login password)), CALIBRE_WEB_INSECURE_TLS (Set to true to accept self-signed certificates (scoped to the configured host)), CALIBRE_WEB_ALLOW_TOOLS (Comma-separated tool names or list_* prefixes to register; 'essential' selects a curated preset (default: all tools)), CALIBRE_WEB_DENY_TOOLS (Comma-separated tool names or list_* prefixes to remove from whatever CALIBRE_WEB_ALLOW_TOOLS left). The author declared them in the registry entry; get the values from the project itself.