Cyntrisec CLI (Historical)

Name: Cyntrisec CLI (Historical)
Author: cyntrisec

by cyntrisecversion 0.1.14i★ –iRuns on your computer

Registry nameio.github.cyntrisec/cyntrisec

Install

Overview

Description from the maker (original English)

Historical AWS analysis CLI; not a current Cyntrisec product.

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
UsageiNot measured yet★ –

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: AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_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: AWS_PROFILE, AWS_DEFAULT_REGION, AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY

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

You need

PyPIPython’s uv installed (for the uvx 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": {
    "cyntrisec": {
      "command": "uvx",
      "args": [
        "cyntrisec"
      ],
      "env": {
        "AWS_PROFILE": "your-value",
        "AWS_DEFAULT_REGION": "your-value",
        "AWS_ACCESS_KEY_ID": "your-value",
        "AWS_SECRET_ACCESS_KEY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add cyntrisec --env AWS_PROFILE=your-value --env AWS_DEFAULT_REGION=your-value --env AWS_ACCESS_KEY_ID=your-value --env AWS_SECRET_ACCESS_KEY=your-value -- uvx cyntrisec

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": {
    "cyntrisec": {
      "command": "uvx",
      "args": [
        "cyntrisec"
      ],
      "env": {
        "AWS_PROFILE": "your-value",
        "AWS_DEFAULT_REGION": "your-value",
        "AWS_ACCESS_KEY_ID": "your-value",
        "AWS_SECRET_ACCESS_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": {
    "cyntrisec": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "cyntrisec"
      ],
      "env": {
        "AWS_PROFILE": "your-value",
        "AWS_DEFAULT_REGION": "your-value",
        "AWS_ACCESS_KEY_ID": "your-value",
        "AWS_SECRET_ACCESS_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

AWS_PROFILE env
AWS profile name to use for authentication
AWS_DEFAULT_REGION env
AWS region to use (defaults to profile/env settings)
AWS_ACCESS_KEY_ID secret env
AWS access key ID (use AWS_PROFILE instead if possible)
AWS_SECRET_ACCESS_KEY secret env
AWS secret access key (use AWS_PROFILE instead if possible)

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 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account cyntrisec, 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 1388 servers in this category
Published to the registry more recently than 16% of the other 1388 servers in this category
Basic checks equal to or better than 100% of the other 1388 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 Cyntrisec CLI (Historical) 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: AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_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 (0.1.14) reached the registry 6 months 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: GitHub, Desktop Commander, Cloudflare MCP

Alternatives

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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.

Cyntrisec CLI

Historical pre-company project. cyntrisec-cli was created before Cyntrisec narrowed its company focus to EphemeralML and AIR v1. It is not a current Cyntrisec product, support surface, or commercial offering. The PyPI package name cyntrisec, CLI command cyntrisec, and MCP server ID io.github.cyntrisec/cyntrisec are retained only to avoid breaking historical installs.

[!CAUTION]

Historical Software Disclaimer: This tool is no longer an active Cyntrisec product. It is provided "as is", without warranty of any kind.

While the CLI is a read-only analysis tool by default, the user assumes all responsibility for any actions taken based on its findings.

Always review generated remediation plans and Terraform code before application.

Historical AWS capability graph analysis and attack path discovery CLI.

A read-only CLI tool that historically:

Scans AWS infrastructure via AssumeRole
Builds a capability graph (IAM, network, dependencies)
Discovers attack paths from internet to sensitive targets
Prioritizes fixes by ROI (security impact + cost savings)
Identifies unused capabilities (blast radius reduction)
Outputs deterministic JSON with proof chains

Demo

*Watch how to discover attack paths and generate fixes using natural language with Claude MCP.*

Architecture

+----------------------------------------------------------------------------------+

<!--

┌─────────────────────────────────────────────────────────────────────────────┐

│ CYNTRISEC CLI │ ├─────────────────────────────────────────────────────────────────────────────┤ │ │ │ ┌─────────────────────────────────────────────────────────────────────┐ │ │ │ CLI Layer (typer) │ │ │ │ ┌─────────┐ ┌─────────┐ ┌─────────┐ ┌─────────┐ ┌─────────┐ │ │ │ │ │ scan │ │ analyze │ │ cuts │ │ waste │ │ report │ ... │ │ │ │ └────┬────┘ └────┬────┘ └────┬────┘ └────┬────┘ └────┬────┘ │ │ │ └───────┼──────────┼──────────┼──────────┼──────────┼─────────────────┘ │ │ │ │ │ │ │ │ │ ┌───────▼──────────▼──────────▼──────────▼──────────▼────────────────┐ │ │ │ Core Engine │ │ │ │ ┌──────────────┐ ┌──────────────┐ ┌──────────────┐ │ │ │ │ │ Graph │ │ Paths │ │ Compliance │ │ │ │ │ │ (AwsGraph) │ │ (BFS/DFS) │ │ (CIS/SOC2) │ │ │ │ │ └──────────────┘ └──────────────┘ └──────────────┘ │ │ │ │ ┌──────────────┐ ┌──────────────┐ ┌──────────────┐ │ │ │ │ │ Cuts │ │ Waste │ │ Simulator │ │ │ │ │ │ (ROI/Min) │ │ (Unused) │ │ (IAM Eval) │ │ │ │ │ └──────────────┘ └──────────────┘ └──────────────┘ │ │ │ │ ┌──────────────┐ │ │ │ │ │ Cost Engine │ │ │ │ │ │ (Estimator) │ │ │ │ │ └──────────────┘ │ │ │ └────────────────────────────────────────────────────────────────────┘ │ │ │ │ │ ┌───────▼────────────────────────────────────────────────────────────┐ │ │ │ AWS Layer │ │ │ │ ┌──────────────┐ ┌──────────────┐ ┌──────────────┐ │ │ │ │ │ Collectors │ │ Normalizers │ │ Relationship │ │ │ │ │ │ (EC2, IAM, │ │ (Asset → │ │ Builder │ │ │ │ │ │ RDS, ...) │ │ Schema) │ │ │ │ │ │ │ └──────────────┘ └──────────────┘ └──────────────┘ │ │ │ └────────────────────────────────────────────────────────────────────┘ │ │ │ │ │ │ ┌───────▼──────────────────────┐ ┌──────────────▼──────────────────┐ │ │ │ Storage Layer │ │ MCP Server │ │ │ │ ┌────────────┐ ┌─────────┐ │ │ ┌──────────────────────────┐ │ │ │ │ │ Filesystem │ │ Memory │ │ │ │ Tools: get_scan_summary │ │ │ │ │ │ (~/.cyntri │ │ (tests) │ │ │ │ get_attack_paths, ... │ │ │ │ │ │ sec/) │ │ │ │ │ └──────────────────────────┘ │ │ │ │ └────────────┘ └─────────┘ │ │ │ │ │ └──────────────────────────────┘ └─────────────────────────────────┘ │ │ │ └─────────────────────────────────────────────────────────────────────────────┘ │ ▼ ┌─────────────────────────────────────────────────────────────────────────────┐ │ AWS Account │ │ ┌─────────────┐ ┌─────────────┐ ┌─────────────┐ ┌─────────────┐ │ │ │ IAM │ │ EC2 │ │ RDS │ │ S3 │ ... │ │ │ (Roles, │ │ (Instances, │ │ (Databases) │ │ (Buckets) │ │ │ │ Policies) │ │ SGs, VPCs) │ │ │ │ │ │ │ └─────────────┘ └─────────────┘ └─────────────┘ └─────────────┘ │ └─────────────────────────────────────────────────────────────────────────────┘

-->

Data Flow

CLI (scan) --AssumeRole--> AWS Session --Describe/Get/List--> AWS APIs (read-only)

| v Collectors -> normalize -> Assets + Relationships -> AwsGraph | v Attack path search (BFS/DFS) | v Min-cut (remediation cuts) | v Cost engine (ROI)

Local artifacts: ~/.cyntrisec/scans/ /*.json

<!--

┌──────────┐    AssumeRole     ┌──────────┐    Describe/Get/List     ┌─────────┐

│ CLI │ ─────────────────▶│ AWS │ ◀─────────────────────▶│ APIs │ │ (scan) │ │ Session │ │(read-only) └────┬─────┘ └──────────┘ └─────────┘ │ ▼ ┌──────────┐ normalize ┌──────────┐ build edges ┌──────────────┐ │Collectors│ ─────────────────▶│ Assets │ ─────────────────▶│Relationships│ └──────────┘ └──────────┘ └──────┬───────┘ │ ┌───────────────────────────────────────────────────────────────┐ ▼ ┌──────────┐ BFS/DFS ┌──────────┐ min-cut ┌──────────────┐ │ AwsGraph │ ─────────────────▶│ Attack │ ─────────────────▶│ Remediation │ │ │ │ Paths │ │ Cuts │ └──────────┘ └──────────┘ └──▲───────────┘ │ (ROI) ┌──────┴───────┐ │ Cost Engine │ └──────────────┘

-->

Installation

pip install cyntrisec

Windows PATH Fix

If you see "cyntrisec is not recognized", the Scripts folder isn't on PATH:

# Option 1: Run with python -m

python -m cyntrisec --help

Option 2: Add to PATH for current session

$env:PATH += ";$env:APPDATA\Python\Python311\Scripts"

Quick Start

Prerequisite: Ensure you have AWS CLI installed and configured with credentials (e.g., aws configure) or environment variables set. terraform is required for the setup step.

# 1. Create the read-only IAM role in your account

cyntrisec setup iam 123456789012 --output role.tf

2. Apply the Terraform

cd your-infra && terraform apply

3. Run a scan

cyntrisec scan --role-arn arn:aws:iam::123456789012:role/CyntrisecReadOnly

4. View attack paths

cyntrisec analyze paths --min-risk 0.5

5. Find minimal fixes (prioritized by ROI)

cyntrisec cuts --format json

6. Generate HTML report

cyntrisec report --output report.html

Commands

Core Analysis

Command	Description
`scan`	Scan AWS infrastructure
`analyze paths`	View attack paths
`analyze findings`	View security findings
`analyze stats`	View scan statistics
`analyze business`	Business entrypoint analysis
`report`	Generate HTML/JSON report

Setup & Validation

Command	Description
`setup iam`	Generate IAM role Terraform
`validate-role`	Validate IAM role permissions

Remediation

Command	Description
`cuts`	Find minimal fixes (Cost & ROI prioritized)
`waste`	Find unused IAM permissions
`remediate`	Generate or optionally apply Terraform plans (gated)

Policy Testing

Command	Description
`can`	Test "can X access Y?"
`diff`	Compare scan snapshots
`comply`	Check CIS AWS / SOC2 compliance

Agentic Interface

Command	Description

| `man

Only the beginning is shown; read the rest in the repo

Cyntrisec CLI (Historical)

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

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

Cyntrisec CLI

Demo

Architecture

Data Flow

Installation

Windows PATH Fix

Option 2: Add to PATH for current session

Quick Start

2. Apply the Terraform

3. Run a scan

4. View attack paths

5. Find minimal fixes (prioritized by ROI)

6. Generate HTML report

Commands

Core Analysis

Setup & Validation

Remediation

Policy Testing

Agentic Interface