Mcpwatch

Name: Mcpwatch
Author: lazymac2x

by lazymac2xversion 0.1.1i★ –iRuns on your computer

Registry nameio.github.lazymac2x/mcpwatch

Install

Overview

Description from the maker (original English)

Audit MCP servers from inside Claude Code. 10 OWASP checks, A-F grade, live leaderboard.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiVery new↓ 45/wk · ★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Developer tools

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
The registry lists no key to fill in.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

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

Run this in your terminal

claude mcp add mcpwatch -- npx -y mcpwatch-mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

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

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "mcpwatch": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "mcpwatch-mcp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 9, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account lazymac2x, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Developer toolsi

More stars than 0% of the other 5564 servers in this category
Published to the registry more recently than 9% of the other 5564 servers in this category
Basic checks equal to or better than 100% of the other 5564 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Mcpwatch safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.1) reached the registry 7 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: GitHub, Desktop Commander, Cloudflare MCP

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

GitHub

GitHub’s official server lets AI read and manage code, issues and pull requests in your account. Use GitHub’s hosted version or run it locally with Docker.

by githubWidely used★ 34.2KUpdated 5 days ago

Computer or cloud

Install

Desktop Commander

MCP server for terminal commands, file operations, and process management

by wonderwhy-erWidely used↓ 709.6K/wk★ 10.2KUpdated 17 days ago

Runs on your computer

Install

Cloudflare MCP

Cloudflare MCP servers

by cloudflareWidely used★ 4.4KUpdated 14 months ago

Runs in the cloud✓ mcp.cloudflare.com

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

MCPWatch

Have I Been Pwned for MCP servers. Open-source security scanner that audits MCP servers against the OWASP MCP Top 10 and produces an A–F letter grade.

Overview

MCPWatch is a security tool for the MCP ecosystem that:

Runs 10 automated checks derived from the OWASP MCP Top 10 on any MCP server
Produces an A–F letter grade with per-check findings
Exposes an MCP server interface so AI agents can audit MCPs on demand
Provides a CLI for pre-install scanning in CI/CD pipelines
Powers a public leaderboard at mcpwatch.pages.dev with live SVG grade badges

Installation

Use with Claude Code / Cursor / Windsurf (MCP server)

Add to your MCP configuration:

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

CLI (scan before install)

npx mcpwatch-scanner /path/to/mcp-server

GitHub Action (CI/CD gate)

- uses: lazymac2x/mcpwatch-action@v1

with: path: . fail-below: B

MCP Tools

When running as an MCP server, MCPWatch exposes the following tools to your AI agent:

Tool	Description
`scan_mcp_server`	Scan a local MCP server by path — returns grade + per-check findings
`get_public_score`	Fetch the live grade for any public MCP server by owner/repo slug
`list_leaderboard`	Return the top/bottom N servers from the public leaderboard
`explain_check`	Get a detailed explanation of any OWASP MCP Top 10 check by ID

Example: scan before adding an MCP

Ask Claude: *"Use mcpwatch to scan the filesystem-mcp server at ~/mcps/filesystem-mcp before I add it to my config."*

The 10 Checks (OWASP MCP Top 10)

ID	Check	Severity
MCP-01	Command injection in tool handlers	Critical
MCP-02	Path traversal in file tools	Critical
MCP-03	Unauthenticated mutations	Critical
MCP-04	Prompt injection via tool descriptions	High
MCP-05	SSRF in URL-fetching tools	High
MCP-06	Hardcoded secret leakage	High
MCP-07	Over-permissive filesystem scope	Medium
MCP-08	Missing rate limits	Medium
MCP-09	Outdated dependencies with known CVEs	Medium
MCP-10	Missing input schema validation	Low

Grading

Grade	Score
A	90–100 — no Critical/High findings
B	75–89 — no Critical findings
C	60–74 — has Critical findings, minor impact
D	40–59 — multiple Critical findings
F	0–39 — severe/exploitable vulnerabilities

Public Leaderboard & Badges

Every public MCP server on Smithery, npm, and the official registry is scanned daily.

Live badge — drop into any README:

[![MCPWatch score](https://api.lazy-mac.com/mcpwatch/badge/YOUR_OWNER/YOUR_REPO.svg)](https://mcpwatch.pages.dev/servers/YOUR_OWNER/YOUR_REPO)

JSON API:

GET https://api.lazy-mac.com/mcpwatch/scan/{owner}/{repo}

Architecture

mcpwatch/

├── packages/ │ ├── scanner/ # Core check engine (TypeScript, runs in Worker + CLI + Node) │ └── cli/ # mcpwatch-scanner — npx runnable ├── workers/ │ └── crawler/ # CF Worker — scheduled crawl + scan (daily) ├── apps/ │ └── web/ # CF Pages — mcpwatch.pages.dev — public leaderboard └── .github/ └── workflows/ # mcpwatch-action CI gate

Requirements

Node.js 18+
The MCP server under test must be locally accessible (for scan_mcp_server / CLI)
No API key required for public leaderboard lookups

License

MIT — use it, fork it, contribute checks.

Contributing

Pull requests for new checks, false-positive fixes, or leaderboard improvements are welcome. See CONTRIBUTING.md for guidelines.

Pro Report $49 (in development)

Cross-repo trend analysis + Slack/Discord webhook alerts on grade drops + private MCP scanning. Email waitlist:

Get notified: https://coindany.gumroad.com (subscribe to free tier — Pro Report announce when ready)

Related — Lumen API + MCP Catalog

If you ship MCP servers, you might want these (one-time license, lifetime updates, MIT source):

AI Citation Coverage MCP — Pro $19 — claim-level RAG citation scoring
Prompt Anti-Pattern Detector — Pro $19 — 24+ prompt anti-patterns
LLM Response Determinism Checker — Pro $29 — same prompt N times, drift score
Prompt-Leak Detector API $25 — 30+ leak signatures

Full catalog: https://api.lazy-mac.com Profile: https://github.com/lazymac2x dev.to: https://dev.to/lazymac2x

Mcpwatch

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Developer toolsi

Common questions

Alternatives

GitHub

Desktop Commander

Cloudflare MCP

README from the maker

MCPWatch

Overview

Installation

Use with Claude Code / Cursor / Windsurf (MCP server)

CLI (scan before install)

GitHub Action (CI/CD gate)

MCP Tools

Example: scan before adding an MCP

The 10 Checks (OWASP MCP Top 10)

Grading

Public Leaderboard & Badges

Architecture

Requirements

License

Contributing

Pro Report $49 (in development)

Related — Lumen API + MCP Catalog