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PopNx MCPMCP servers for people who use AI · explained in plain words

Security Engineer

by GuardBeeversion 0.1.1i★ –iRuns on your computer
Registry nameio.github.GuardBee/security-engineer

Install

Overview

Description from the maker (original English)

Fix GuardBee AI Security Engineer findings in your repo with your coding agent, then verify

PopNx MCP’s three pillars

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

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
  • You need to fill in: GUARDBEE_API_KEY

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).
  • You fill in yourself: GUARDBEE_API_KEY

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

  • npmNode.js installed (for the npx command)

Which app do you use?

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": {
    "security-engineer": {
      "command": "npx",
      "args": [
        "-y",
        "@guardbee/mcp-security-engineer"
      ],
      "env": {
        "GUARDBEE_API_KEY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add security-engineer --env GUARDBEE_API_KEY=your-value -- npx -y @guardbee/mcp-security-engineer

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "security-engineer": {
      "command": "npx",
      "args": [
        "-y",
        "@guardbee/mcp-security-engineer"
      ],
      "env": {
        "GUARDBEE_API_KEY": "your-value"
      }
    }
  }
}

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": {
    "security-engineer": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@guardbee/mcp-security-engineer"
      ],
      "env": {
        "GUARDBEE_API_KEY": "your-value"
      }
    }
  }
}

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.

Values you fill in

  • GUARDBEE_API_KEY secret required env
    GuardBee API key with remediations.read and remediations.write scopes

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 8, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account GuardBee, 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 4923 servers in this category
  • Published to the registry more recently than 96% of the other 4923 servers in this category
  • Basic checks equal to or better than 100% of the other 4923 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 Security Engineer 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?

You need to fill in: GUARDBEE_API_KEY

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 yesterday.

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:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

GitHub

by 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.

Computer or cloud★ 34,245MITUpdated 5 days ago
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Desktop Commander

by wonderwhy-er

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

Runs on your computer★ 10,225MITUpdated 17 days ago
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Cloudflare MCP

by cloudflare

Cloudflare MCP servers

Runs in the cloud★ 4,446Apache-2.0Updated 14 months ago
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.

@guardbee/mcp-security-engineer

🇬🇧 English | 🇹🇷 Türkçe

Fix GuardBee AI Security Engineer findings in your own repository with your coding agent (Claude Code, Cursor, VS Code), then verify the fix on the live site.

GuardBee finds and explains the issue and proposes a fix for your platform. Your coding agent makes the change in your repository, and you approve it. GuardBee never edits your code or servers.

Telemetry is off by default. With GUARDBEE_TELEMETRY=1 it sends the server, tool, success, duration and short parameter values such as a file path; longer strings and fields like content, token or password are replaced with a placeholder. See @guardbee/mcp-telemetry.

Tools

ToolWhat it does
list_assessmentsRecent AI Security Engineer assessments of your workspace
get_assessmentActionable findings, highest priority first, with the platforms each can be fixed on
detect_stackDetects Next.js, Express, Nginx, Apache or Cloudflare from your repository's files, and finds config files to diff against
get_fixA reviewable fix for a finding. If you pass your Nginx or Apache config, you get an exact diff.
report_appliedRecords that the fix was applied, with the commit SHA or PR URL as a reference
verify_fixAfter you deploy, re-runs the check that reported the finding against the live site

Setup

  1. In GuardBee, open Developers → API keys and create a key with the remediations.read and remediations.write scopes.
  2. Add the server to your agent.

Claude Code

claude mcp add guardbee-security-engineer -e GUARDBEE_API_KEY=gb_... -- npx -y @guardbee/mcp-security-engineer

Cursor / VS Code (mcp.json)

{

"mcpServers": { "guardbee-security-engineer": { "command": "npx", "args": ["-y", "@guardbee/mcp-security-engineer"], "env": { "GUARDBEE_API_KEY": "gb_..." } } } }

Example

"Fix the top GuardBee findings of my latest assessment in this repo."

The agent:

  1. Calls list_assessments and then get_assessment.
  2. Calls detect_stack. For example, it finds Next.js and deploy/nginx.conf.
  3. Calls get_fix for each finding, edits next.config.js or the Nginx config, and shows you the diff.
  4. After you approve and commit, calls report_applied with the commit SHA.
  5. After you deploy, calls verify_fix, and GuardBee confirms the issue is resolved.

Configuration

VariableDefault
GUARDBEE_API_KEYrequired
GUARDBEE_BASE_URLhttps://app.guardbee.ai
GUARDBEE_TELEMETRYoff; 1 turns on anonymous usage telemetry

Security

  • The server only reads files inside the project root, and only the config file you name. Paths outside the root are rejected.
  • File edits are made by your agent, and you approve them there.
  • All actions are recorded in the GuardBee activity log, marked as coming from an MCP client.

License

MIT

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