UI Annotator MCP Server

by mcpware Your server? Claim it

local only

UI Annotator MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 1 399 installs a week from npm. Last commit 24 Mar 2026.

Annotates any web page with hover labels for AI assistants — zero extensions, any browser

Installs per day peak 894 · avg 61 · +6104% w/w

a month agotoday

1 399

Installs / week

npm · @mcpware/ui-annotator

Stars

1 open issues

24 Mar 2026

Last commit

0 releases in 90 days

MIT

License

JavaScript

Nothing serious here today

Today is the operative word: we check UI Annotator MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

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 Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add ui-annotator-mcp -- npx -y @mcpware/ui-annotator

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "ui-annotator-mcp": {
      "args": [
        "-y",
        "@mcpware/ui-annotator"
      ],
      "command": "npx"
    }
  }
}

~/.codex/config.toml

[mcp_servers.ui-annotator-mcp]
command = "npx"
args = ["-y", "@mcpware/ui-annotator"]

.cursor/mcp.json

{
  "mcpServers": {
    "ui-annotator-mcp": {
      "args": [
        "-y",
        "@mcpware/ui-annotator"
      ],
      "command": "npx"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "ui-annotator-mcp": {
      "args": [
        "-y",
        "@mcpware/ui-annotator"
      ],
      "command": "npx"
    }
  }
}

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UI Annotator MCP — questions

Answers built from our own checks of this server.

Why is there no uptime for UI Annotator MCP?

UI Annotator MCP runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @mcpware/ui-annotator was installed 1 399 times last week.

How do I connect UI Annotator MCP?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls @mcpware/ui-annotator straight from npm; nothing to host, nothing to sign up for.

How many people use UI Annotator MCP?

The npm package @mcpware/ui-annotator was installed 1 399 times in the last week. Week over week that is +6104%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is UI Annotator MCP open source?

Yes — it is published under the MIT licence, written in JavaScript, 16 stars on GitHub and 1 open issue. The source link is on this page, so you can read exactly what it does with your data before you connect it.