MarkLayer

io.github.thevrus/marklayer · v0.6.1

Work visual annotations on a live webpage: watch, acknowledge, resolve, reply, or leave your own.

Website Source code Set it up

Connect Runs on your machine

Terminal

claude mcp add marklayer -e MARKLAYER_ROOM=<MARKLAYER_ROOM> -e MARKLAYER_API_BASE=<MARKLAYER_API_BASE> -e MARKLAYER_AGENT=<MARKLAYER_AGENT> -- npx -y [email protected]

claude_desktop_config.json

{
  "mcpServers": {
    "marklayer": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "MARKLAYER_ROOM": "<MARKLAYER_ROOM>",
        "MARKLAYER_API_BASE": "<MARKLAYER_API_BASE>",
        "MARKLAYER_AGENT": "<MARKLAYER_AGENT>"
      }
    }
  }
}

~/.cursor/mcp.json

{
  "mcpServers": {
    "marklayer": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "MARKLAYER_ROOM": "<MARKLAYER_ROOM>",
        "MARKLAYER_API_BASE": "<MARKLAYER_API_BASE>",
        "MARKLAYER_AGENT": "<MARKLAYER_AGENT>"
      }
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "marklayer": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "MARKLAYER_ROOM": "<MARKLAYER_ROOM>",
        "MARKLAYER_API_BASE": "<MARKLAYER_API_BASE>",
        "MARKLAYER_AGENT": "<MARKLAYER_AGENT>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

Name	Description
`MARKLAYER_ROOM` Optional	Same as --room: the share URL or room id to join at startup.
`MARKLAYER_API_BASE` Optional	Override the MarkLayer worker base URL. Defaults to https://marklayer.app; useful against a local dev worker.
`MARKLAYER_AGENT` Optional	Name shown to the humans in the room for this agent. Defaults to claude-code.

Details

Package	`[email protected]` (NPM, stdio)
First published	31 Oct 2026
Last updated	31 Oct 2026
Registry name	`io.github.thevrus/marklayer`

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Live status

Local install

Installed and run on your own machine, so there is no public endpoint to check.

Pair it with live search

Agents that use MarkLayer often also need current facts. NestDaddy MCP gives your AI today's internet: web search, real-time breaking news and full page reading in one connector.

See NestDaddy MCP

For maintainers

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