Usable Browser Agent MCP Server

What the code does

We read the source, 5 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.

    r = spawnSync([cmd, ...args].map(cmdQuote).join(" "), { ...opts, shell: true });

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 usable-browser-agent -- npx -y usable-browser-agent

{
  "mcpServers": {
    "usable-browser-agent": {
      "args": [
        "-y",
        "usable-browser-agent"
      ],
      "command": "npx"
    }
  }
}

[mcp_servers.usable-browser-agent]
command = "npx"
args = ["-y", "usable-browser-agent"]

{
  "mcpServers": {
    "usable-browser-agent": {
      "args": [
        "-y",
        "usable-browser-agent"
      ],
      "command": "npx"
    }
  }
}

{
  "mcpServers": {
    "usable-browser-agent": {
      "args": [
        "-y",
        "usable-browser-agent"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: UBA_PORT (Local WebSocket port the browser extension connects to (default 8876).). The author declared them in the registry entry; get the values from the project itself.