Mcpwatch

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

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Not yet automatically verified

We haven't yet run this listing's install command through our automated sandbox check. This isn't a red flag — we're steadily working through the catalog.

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

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

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Documentation Overview

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:

config.json

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

CLI (scan before install)

Terminal

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

GitHub Action (CI/CD gate)

yaml

- 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:

markdown

[![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:

Code

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

Architecture

Code

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

Read the full README →View source on GitHub →

Related MCP Servers

View all in Developer Tools View all alternatives

Reviews

No reviews yet — be the first to share how this listing worked for you.

Frequently Asked Questions about Mcpwatch

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "mcpwatch": { "command": "npx", "args": ["-y", "mcpwatch"] } }

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Technical Specs & Signals

CategoryDeveloper Tools

36Quality signal: Fair · 36/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20

Documentation & tools16/30

Adoption & activity1/15

Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

★ Featured

Moxie Docs MCP

MCP & Agent Skills for Automated Documentation, and codebase conventions + context

Explore Server →

Own this project?

This directory is pre-filled from public sources. Claim via GitHub README, site badge, or DNS TXT to unlock edit access and the Official badge — proof is checked automatically, then reviewed by our team.

Free dofollow backlink: add your website and place the AllMCPs badge on it — no claim needed. We detect it automatically and keep it verified as long as the badge stays live.

Claim & get free dofollow

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Add our SVG badge (dark/light directory styles) or embeddable widget to your site.

Explore more

More in 💻 Developer Tools →Best MCP servers for Developers →Alternatives to Mcpwatch →Install in Claude Desktop Install in Cursor Install in VS Code

Mcpwatch

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

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Not yet automatically verified

We haven't yet run this listing's install command through our automated sandbox check. This isn't a red flag — we're steadily working through the catalog.

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

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

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Documentation Overview

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:

config.json

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

CLI (scan before install)

Terminal

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

GitHub Action (CI/CD gate)

yaml

- 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:

markdown

[![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:

Code

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

Architecture

Code

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

Read the full README →View source on GitHub →

Related MCP Servers

View all in Developer Tools View all alternatives

Reviews

No reviews yet — be the first to share how this listing worked for you.

Frequently Asked Questions about Mcpwatch

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "mcpwatch": { "command": "npx", "args": ["-y", "mcpwatch"] } }

AllMCPs Directory Badge

Full Badge Customizer

Showcase your server listing on GitHub or your project documentation. Embed this dynamic SVG badge to highlight official listing status and live engagement.

Badge Style:

Live Dynamic SVG Preview

Markdown (GitHub README)

[![AllMCPs](https://allmcps.com/api/badge/mcpwatch?style=directory)](https://allmcps.com/mcp/mcpwatch)

HTML Embed

<a href="https://allmcps.com/mcp/mcpwatch"><img src="https://allmcps.com/api/badge/mcpwatch?style=directory" alt="Mcpwatch on AllMCPs" /></a>

Technical Specs & Signals

CategoryDeveloper Tools

36Quality signal: Fair · 36/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20

Documentation & tools16/30

Adoption & activity1/15

Community engagement0/10

★ Featured

Moxie Docs MCP

MCP & Agent Skills for Automated Documentation, and codebase conventions + context

Explore Server →

Own this project?

Free dofollow backlink: add your website and place the AllMCPs badge on it — no claim needed. We detect it automatically and keep it verified as long as the badge stays live.

Claim & get free dofollow

Share & Embed

Add our SVG badge (dark/light directory styles) or embeddable widget to your site.

Explore more

More in 💻 Developer Tools →Best MCP servers for Developers →Alternatives to Mcpwatch →Install in Claude Desktop Install in Cursor Install in VS Code