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Stig MCP

by jenericversion 0.2.1i★ –iRuns on your computer
Registry nameio.github.jeneric/stig-mcp

Install

Overview

Description from the maker (original English)

MCP server: MITRE ATT&CK® -> NIST 800-53r5 -> DISA STIG fix/check steps, mitigations and detections

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: Other

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: STIG_MCP_DATA

You need

  • PyPIPython’s uv installed (for the uvx 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": {
    "stig": {
      "command": "uvx",
      "args": [
        "stig-mcp"
      ],
      "env": {
        "STIG_MCP_DATA": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add stig --env STIG_MCP_DATA=your-value -- uvx stig-mcp

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": {
    "stig": {
      "command": "uvx",
      "args": [
        "stig-mcp"
      ],
      "env": {
        "STIG_MCP_DATA": "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": {
    "stig": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "stig-mcp"
      ],
      "env": {
        "STIG_MCP_DATA": "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

  • STIG_MCP_DATA env
    Directory holding the knowledge base and downloaded sources

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 7, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account jeneric, 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 Otheri

  • More stars than 0% of the other 32727 servers in this category
  • Published to the registry more recently than 91% of the other 32727 servers in this category
  • Basic checks equal to or better than 100% of the other 32727 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 Stig MCP 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 (0.2.1) reached the registry 3 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, Foliosio

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

Spec Driven Development

by formulahendry

MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.

Runs on your computer★ 440MITUpdated 14 months ago
Install

Remote Desktop Commander

by desktop-commander

Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

Runs in the cloud★ 211Updated 2 days ago
Install

Foliosio

by foliosio.com

Read your support inbox, tag conversations and save draft replies from your AI agent. Never sends.

Runs in the cloudUpdated today
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.

stig-mcp

A local MCP (Model Context Protocol) server that lets an AI assistant, such as GitHub Copilot in VS Code or Claude Code, answer security questions from published guidance instead of from memory. Name a MITRE ATT&CK® technique or threat actor and the system you care about, and the answer gives you:

  • the NIST SP 800-53 security controls that mitigate it;
  • the DISA STIG configuration rules that implement those controls on that system, most severe first, with DISA's check and fix text on request;
  • ATT&CK's own mitigations, and which of its detections work with the logs you collect.

It does not scan or connect to your systems. Its answers come from a knowledge base, a local database of about 6 MB built from those public sources, which you install once. The user guide explains what it does and shows three ways to use it: as a security controls assessor, a system owner, or a SOC analyst.

Prerequisite

stig-mcp is published on PyPI and runs through uvx, which comes with uv. Install uv, then check that uvx --version runs in a new terminal. Restart VS Code or Claude Code after installing uv so it sees the new PATH.

Quick start

VS Code (GitHub Copilot)
  1. Click this badge. VS Code opens and offers to install stig-mcp; choose Install.
  1. Open Copilot Chat and set the mode dropdown to Agent. MCP tools are not available in Ask or Edit mode.
  2. Ask: Install the stig-mcp knowledge base. This is a one-time download of about 6 MB. Allow the tool when VS Code asks.

If that doesn't work, see troubleshooting or setting up VS Code by hand.

Claude Code
  1. Inside a Claude Code session (2.1.275 or later), run:

/plugin install stig-mcp --marketplace jeneric/STIG-MCP

  1. Ask: Install the stig-mcp knowledge base. This is a one-time download of about 6 MB. Allow the tool when Claude Code asks.

If that doesn't work, see troubleshooting or setting up Claude Code by hand.

Example prompts

With the knowledge base installed, try:

  1. System owner: What DISA STIG steps mitigate T1078 on Windows 11?
  2. Security controls assessor: Which ATT&CK techniques does APT29 use?
  3. Anyone, to find the right STIG: Which STIG benchmarks apply to RHEL 9?
  4. SOC analyst: What can I detect of APT29 on Windows Server 2022 with Security and Sysmon logs?

More example prompts are in the user guide, with how to get more out of it and how to make sure the agent answers from the server.

Other MCP clients

Use this only if you are not using VS Code or Claude Code. Any client that launches a local (stdio) MCP server works with this configuration, shown in the common mcpServers shape:

{

"mcpServers": { "stig-mcp": { "command": "uvx", "args": ["stig-mcp"], "env": { "UV_SYSTEM_CERTS": "true", "UV_NATIVE_TLS": "true" } } } }

The two environment variables let uv download stig-mcp behind a TLS-inspecting proxy. They are harmless on most other hosts; that section names the one exception. Then ask the agent to install the stig-mcp knowledge base, as in the quick start.

docs/install.md has the details:

What this server fetches

  • The MCP server contacts nothing unless check_sources or install_knowledge_base is called. Then it sends HTTPS GET requests to api.github.com (this repository's release listing) and github.com (/jeneric/STIG-MCP/releases/download/...), which redirects to release-assets.githubusercontent.com or objects.githubusercontent.com. Any other URL, a redirect included, is refused. Nothing is uploaded, and there is no telemetry. install_knowledge_base given a file path and its SHA-256 requests nothing at all.
  • stig-mcp-install-kb contacts the same hosts, and nothing at all with --file.
  • stig-mcp-fetch, used only to build the knowledge base yourself, downloads from raw.githubusercontent.com and api.github.com (MITRE ATT&CK, the CTID mapping, the NIST 800-53 catalog) and from www.cyber.mil and dl.dod.cyber.mil (DISA).

PRIVACY.md states what each of these requests sends and what is stored locally.

Documentation

  • docs/install.md: installation details for every client, where the data lives, and troubleshooting.
  • docs/user-guide.md: for a person talking to an LLM that has this server wired in.
  • docs/operations.md: for whoever installs, builds and maintains the knowledge base.
  • SECURITY.md: reporting a vulnerability, and what is in scope.
  • CONTRIBUTING.md: working from a source checkout, running the tests, and the project's conventions.
  • RELEASING.md: for the maintainer, publishing the package to PyPI and the MCP Registry.
  • PRIVACY.md: what the server and the fetch tool contact, and what is stored locally.

Third-party content

The knowledge base aggregates MITRE ATT&CK, CTID mapping, DISA STIG, DISA CCI list, and NIST OSCAL content. See NOTICE for attribution and licensing obligations and licenses/apache-2.0.txt for the Apache 2.0 license text that notice requires.

Development

Developed with the assistance of Claude Code (Anthropic). All changes were reviewed and tested by the maintainer.

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