Penthera

Name: Penthera
Author: danoszz

by danoszzversion 2.4.0i★ 108iRuns on your computer

Registry nameio.github.danoszz/penthera

How to install

What it does

Offline, rule-based security checks for your repo, dependencies, AI agent config and local app.

Connects Runs on your computer
Account or key No key needed
Category Cybersecurity

Install

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

Passed 3/3 checks · Runs on your computer · ✓ Commands checked Nov 13, 2026

First: which AI do you use?

ClaudeWeb · app · phoneChatGPTWebClaude CodeTerminalCursorCode editorVS CodeCode editorOtherOther apps

Pick your app and the steps appear below.

Works with Claude, with some setup first

Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone

Let AI install it

Copy this message into a Claude chat. The AI checks your computer, tells you which file it will change, and waits for your OK every time.

Please install the MCP server Penthera for Claude on this computer, in this order: 1) Check Node.js with node -v. If it is missing, tell me to install it from https://nodejs.org/en/download; do not install it yourself. 2) Use only this config (already checked by PopNx MCP): { "mcpServers": { "penthera": { "command": "npx", "args": [ "-y", "penthera", "mcp" ] } } } 3) Tell me the full path of the file you will change, or the command you will run, and wait for my OK. 4) No key is needed. 5) Do what we agreed, then check that the Penthera tools really show up.

This message has no key in it. If a key is needed, the AI will ask you to paste it yourself into the file or the app’s field.

1
Install Node.js (if you don’t have it)
Already installed? Check first · Open Terminal, type this command and press Enter
node -v
- A version number such as v26.13.1 = installed, skip this step
- "command not found" (on Windows: "is not recognized") = not installed yet, or installed but Terminal needs to be closed and reopened
How to open Terminal
Mac: press ⌘ + Space, type Terminal, press Enter
Windows: open Start, type Windows PowerShell, then Open
Not installed: Open the official download page, pick the LTS version and the click-through installer: .pkg on Mac · .msi on Windows. Double-click and follow it to the end. No curl command needed
Open the Node.js download page ↗
When it’s done, close Terminal, open it again and run the same command. You should see a version number: node -v
Install once; it works for everything that needs Node.js
Done
Open the Claude desktop app’s settings file
SettingsDeveloperEdit Config
Done

Paste these settings and save the file

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

Done

Quit Claude and open it again
Done
Try it
Use Penthera and tell me what you can do for me, then show me one thing
✓ If Claude says it is using Penthera or shows a Penthera tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

ChatGPT cannot connect Penthera yet

Penthera runs on your computer, but ChatGPT can only connect servers that run on the web

What you can do instead

A · Use an app that can connect Penthera

Steps for Claude →Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone
Steps for Claude Code →Install Node.js on your computer first (one time)
Steps for Cursor →Install Node.js on your computer first (one time)
Steps for VS Code →Install Node.js on your computer first (one time)

B · Others in Cybersecurity that work with ChatGPT

Picked from the most used in the same category, only ones that connect by address with no key

GitHits✓ ChatGPT
EchelonGraph CVE & Exposure✓ ChatGPT
NoData✓ ChatGPT

Works with Claude Code, with some setup first

Install Node.js on your computer first (one time)

Let AI install it

Copy this message into a Claude Code chat. The AI checks your computer, tells you which file it will change, and waits for your OK every time.

Please install the MCP server Penthera for Claude Code on this computer, in this order: 1) Check Node.js with node -v. If it is missing, tell me to install it from https://nodejs.org/en/download; do not install it yourself. 2) Use only this config (already checked by PopNx MCP): claude mcp add --scope user penthera -- npx -y penthera mcp 3) Tell me the full path of the file you will change, or the command you will run, and wait for my OK. 4) No key is needed. 5) Do what we agreed, then check that the Penthera tools really show up.

This message has no key in it. If a key is needed, the AI will ask you to paste it yourself into the file or the app’s field.

1
Install Node.js (if you don’t have it)
Already installed? Check first · Open Terminal, type this command and press Enter
node -v
- A version number such as v26.13.1 = installed, skip this step
- "command not found" (on Windows: "is not recognized") = not installed yet, or installed but Terminal needs to be closed and reopened
How to open Terminal
Mac: press ⌘ + Space, type Terminal, press Enter
Windows: open Start, type Windows PowerShell, then Open
Not installed: Open the official download page, pick the LTS version and the click-through installer: .pkg on Mac · .msi on Windows. Double-click and follow it to the end. No curl command needed
Open the Node.js download page ↗
When it’s done, close Terminal, open it again and run the same command. You should see a version number: node -v
Install once; it works for everything that needs Node.js
Done
Open Terminal
Mac: press Command+Space and type Terminal · Windows: open PowerShell
Done

Paste this command and press Enter

claude mcp add --scope user penthera -- npx -y penthera mcp

Done

Type /mcp in Claude Code
You should see Penthera listed as connected
Done
Try it
Use Penthera and tell me what you can do for me, then show me one thing
✓ If Claude Code says it is using Penthera or shows a Penthera tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor, with some setup first

Install Node.js on your computer first (one time)

Let AI install it

Copy this message into a Cursor chat. The AI checks your computer, tells you which file it will change, and waits for your OK every time.

Please install the MCP server Penthera for Cursor on this computer, in this order: 1) Check Node.js with node -v. If it is missing, tell me to install it from https://nodejs.org/en/download; do not install it yourself. 2) Use only this config (already checked by PopNx MCP): { "mcpServers": { "penthera": { "command": "npx", "args": [ "-y", "penthera", "mcp" ] } } } 3) Tell me the full path of the file you will change, or the command you will run, and wait for my OK. 4) No key is needed. 5) Do what we agreed, then check that the Penthera tools really show up.

This message has no key in it. If a key is needed, the AI will ask you to paste it yourself into the file or the app’s field.

1
Install Node.js (if you don’t have it)
Already installed? Check first · Open Terminal, type this command and press Enter
node -v
- A version number such as v26.13.1 = installed, skip this step
- "command not found" (on Windows: "is not recognized") = not installed yet, or installed but Terminal needs to be closed and reopened
How to open Terminal
Mac: press ⌘ + Space, type Terminal, press Enter
Windows: open Start, type Windows PowerShell, then Open
Not installed: Open the official download page, pick the LTS version and the click-through installer: .pkg on Mac · .msi on Windows. Double-click and follow it to the end. No curl command needed
Open the Node.js download page ↗
When it’s done, close Terminal, open it again and run the same command. You should see a version number: node -v
Install once; it works for everything that needs Node.js
Done
Click this button to open Cursor
Open in Cursor
Cursor asks you to confirm; click Install
Done
Open the AI chat in Cursor in Agent mode
Done
Try it
Use Penthera and tell me what you can do for me, then show me one thing
✓ If Cursor says it is using Penthera or shows a Penthera tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code, with some setup first

Install Node.js on your computer first (one time)

Let AI install it

Copy this message into a VS Code chat. The AI checks your computer, tells you which file it will change, and waits for your OK every time.

Please install the MCP server Penthera for VS Code on this computer, in this order: 1) Check Node.js with node -v. If it is missing, tell me to install it from https://nodejs.org/en/download; do not install it yourself. 2) Use only this config (already checked by PopNx MCP): { "servers": { "penthera": { "type": "stdio", "command": "npx", "args": [ "-y", "penthera", "mcp" ] } } } 3) Tell me the full path of the file you will change, or the command you will run, and wait for my OK. 4) No key is needed. 5) Do what we agreed, then check that the Penthera tools really show up.

This message has no key in it. If a key is needed, the AI will ask you to paste it yourself into the file or the app’s field.

1
Install Node.js (if you don’t have it)
Already installed? Check first · Open Terminal, type this command and press Enter
node -v
- A version number such as v26.13.1 = installed, skip this step
- "command not found" (on Windows: "is not recognized") = not installed yet, or installed but Terminal needs to be closed and reopened
How to open Terminal
Mac: press ⌘ + Space, type Terminal, press Enter
Windows: open Start, type Windows PowerShell, then Open
Not installed: Open the official download page, pick the LTS version and the click-through installer: .pkg on Mac · .msi on Windows. Double-click and follow it to the end. No curl command needed
Open the Node.js download page ↗
When it’s done, close Terminal, open it again and run the same command. You should see a version number: node -v
Install once; it works for everything that needs Node.js
Done
Click this button to open VS Code
Open in VS Code
VS Code asks you to confirm; click Install
Done
Open the AI chat in VS Code in Agent mode
Done
Try it
Use Penthera and tell me what you can do for me, then show me one thing
✓ If VS Code says it is using Penthera or shows a Penthera tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

JSON settings are under “For developers” below

Stuck? Ask people who use Penthera💬 Discussion →

For developers: Terminal commands and JSON settings

Installed on your computer

Claude Code

claude mcp add --scope user penthera -- npx -y penthera mcp

Claude Desktop (claude_desktop_config.json)

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

Cursor (~/.cursor/mcp.json)

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

VS Code (mcp.json)

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

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

At a glance

GitHub stars i: 108
Downloads per weeki: 1,873/wk
Licence i: MIT
Connection: Runs on your computer
Transport: stdio
Latest versioni: 2.4.0
Categoryi: Cybersecurity
Published to registryi: Nov 9, 2026
Code last changedi: Nov 14, 2026
Maker: danoszz
Packages: npm: penthera
Repo: danoszz/penthera
Website: penthera.org
Registry status: Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Run on your computer in

Claude Goose LM Studio Msty Studio Cherry Studio Cursor VS Code + GitHub Copilot Visual Studio Windsurf (Devin Desktop)Zed Kiro Cline Continue JetBrains AI Assistant Claude Code Codex CLI Gemini CLI OpenCode nodecode Warp LibreChat Raycast

All apps, with pros and cons →

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 15, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account danoszz, which owns the repo
✓ Pass
Still maintained
Code last changed yesterday
✓ Pass
Has a licence
Uses MIT
– 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

Published vulnerabilities (OSV.dev)

No entries on OSV.dev for penthera@2.4.0

Checks only this package version, not every dependency · checked Nov 15, 2026

What we check → · JSON

Makers: ask for a re-check or report wrong info

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

No posts yet. Be the first to ask or share.

Posts here are written by users, not the PopNx team.

User reviews

No reviews yet

Compared with others in Cybersecurityi

More stars than 98% of the other 1061 servers in this category
Published to the registry more recently than 84% of the other 1061 servers in this category
Basic checks equal to or better than 100% of the other 1061 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 Penthera safe?

It passed 3 of 3 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 yesterday, and the latest version (2.4.0) reached the registry 6 days 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: GitHits, Dependency Management MCP Server, Snyk MCP, Draugr, Spotdb

Similar alternatives

Same category, other makers, commands already checked. Official ones first, then by stars.

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

GitHits

Search public open-source code, documentation, metadata, vulnerabilities, changelogs, and examples.

by githits-comGrowing↓ 3.8K/wk★ 136Updated 6 days ago

Computer or cloud✓ service owner · githits.com

Install

Dependency Management MCP Server

Sonatype component intelligence: versions, security analysis, and Trust Score recommendations

by sonatypeEarly★ 72Updated 12 months ago

Runs in the cloud✓ sonatype.com

How to connect

Snyk MCP

Easily find and fix security issues in your applications leveraging Snyk platform capabilities.

by snykWidely used↓ 762.1K/wk★ 62Updated 6 months ago

Runs on your computer✓ service owner · snyk.io

Install

Draugr

Security scanning for AI agents: SAST, SCA, secrets, IaC, DAST, ranked by real risk.

by draugr-devEarly★ 29Updated yesterday

Runs on your computer✓ service owner · draugr.dev

Install

Spotdb

Ephemeral data sandbox for AI workflows with guardrails and security

by aliengiraffeEarly★ 21Updated 13 months ago

Runs on your computer✓ aliengiraffe.ai

Install

GitHits — Cloud or install on your computer · No key needed
Dependency Management MCP Server — Runs in the cloud, nothing to install · No key needed
Snyk MCP — Installs on your computer · No key needed
Draugr — Installs on your computer · No key needed
Spotdb — Installs on your computer · No key needed

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.

Penthera: your open-source cyber security agent

The security review you never had time for. Offline, rule-based, and you can verify every finding yourself.

[penthera.org](https://penthera.org): check your live site in a few seconds. Passive, nothing stored.

Daily notes from Penthera: [x.com/penthera_org](https://x.com/penthera_org)

Who builds it: Daan van der Zwaag, part-time and in the open.

How it compares: next to Snyk, Socket, Semgrep, ZAP and GitHub.

New in 2.4: penthera --card makes a security receipt of your repo to post, every surface counts one set of problems with the same words, and 13 ways to hide a finding or stall a scan are closed (what changed).

From your coding agent: add Penthera (one line per agent), then say "Hey Claude, run Penthera on this repo."

132 readable rules · 6 read-only MCP tools · 0 runtime dependencies · 0 requests past loopback in the benchmark · MIT, no telemetry

`penthera ui`, Simple, dark	`penthera ui`, Advanced, light

What it is

Penthera checks your app, its dependencies and your AI coding tools on your own machine. It fixes what it can, with your approval. Every finding comes from a rule you can read, with its evidence at file:line. A model may propose; a rule decides.

It is also an open R&D project. We measure every check in public and publish the results, good or bad, so you can see how far to trust it.

It finds known classes of problems, not novel ones. It does not replace a human pentester.

Start in 30 seconds

You need Node.js 22 or later. No install, no account.

Building with Cursor, Claude Code, Codex, VS Code, Windsurf, Gemini CLI, Zed, JetBrains or Kiro, or an app builder such as Lovable, Bolt, Base44, Replit or v0? Penthera in your coding tool has the setup for each.

In your terminal. Run this in your project folder:

npx penthera

It detects your setup offline, asks what to check, and gives you a grade per area and the three things to fix first. It scans your running app only after you confirm the app is yours. Nothing is committed or pushed (guided start).

In your coding agent. Pick yours, then ask "scan my app for security issues". The MCP lines pin the version.

Agent	Run this
Claude Code, plugin (skill only, runs the CLI)	`claude plugin marketplace add danoszz/penthera`, then `claude plugin install penthera@penthera`
Claude Code, MCP server only	`claude mcp add penthera -- npx -y penthera@2.4.0 mcp`
Codex	`codex mcp add penthera -- npx -y penthera@2.4.0 mcp`
GitHub Copilot CLI	`copilot plugin marketplace add danoszz/penthera`, then `copilot plugin install penthera@penthera`
GitHub Copilot in VS Code	the `code --add-mcp` line in mcp.md
Gemini CLI	`gemini extensions install https://github.com/danoszz/penthera`
Cursor, Windsurf	the JSON in mcp.md
Any agent that reads skills	`npx skills add danoszz/penthera`

The skill tells your agent how to run Penthera; the MCP server gives it six read-only tools. More routes: skill.md, mcp.md.

Where AI fits. Rules decide every finding and every exit code. A model may only propose:

Role	Who	How
Decides	Penthera's rules, always	Every finding, every exit code
Looks further (optional)	A model, with `--ai`	Proposes problems no rule describes; the rules check each one, and unchecked ones are listed apart and never fail CI (AI mode)
Fixes	Your own coding agent	Through the MCP server, the skill or `penthera fix --plan`

To run it in a container: docker build -t penthera . && docker run --rm penthera https://your-app.example.

Public benchmarks

We test Penthera on public datasets that other people built, next to the free open-source tools that do the same job, scored the same way. Each dataset was split in half before we looked: we improved Penthera on one half and scored it once on the other, sealed half. The rules for scoring and ranking were written down before that run (protocol).

Benchmark	Score	Penthera 1.9.0	Penthera 2.0.0	Rank among free tools	Best other free tool
Leaked secrets (Samsung CredData)	F1	0.18	0.74	2nd of 10	deepsecrets 0.78
Malicious npm packages (DataDog)	caught minus false alarms	0.57	0.71	1st of 6, tied 1st to 3rd ⁴	malcontent 0.63
Malicious PyPI packages (DataDog)	caught minus false alarms	0.74	0.82	1st of 8, tied 1st to 3rd ⁴	GuardDog 0.74
Injection bugs in JS libraries (SecBench.js)	found in the right file	0.16	0.70	1st of 8, tied 1st to 4th ⁴	odgen 0.68

⁴ A tied range is a rank interval: the range Penthera's rank fell in, in 95% of 10,000 bootstrap redraws of each tool's counts (on SecBench.js, of its 64 test bugs). Penthera alone came out first in 76% of the redraws on npm, 82% on PyPI and 60% on SecBench.js. Exploratory: computed after the registered ranking.

Leaked secrets: 2nd by F1, the registered score; 1st by F0.5, which weighs precision more (0.82 against deepsecrets 0.80); 2nd by F2, which weighs recall more (0.68 against deepsecrets 0.77).

Some ranked tools are barely in the contest. Other ranked tools scoring below 0.10: 1 of 9 on CredData (trufflehog); 3 of 5 on npm (clamav, yara, ossgadget); 4 of 7 on PyPI (clamav, ossgadget, bandit4mal, aura); 1 of 7 on SecBench.js (njsscan).

If 1 package in 1,000 were malicious, the share of Penthera's malware flags that would be right: npm, about 2.7% at the top of the false-alarm interval (it raised no false alarm on that sample); PyPI, about 1.6% at the measured false-alarm rate, 0.9% at the top of its interval. Exploratory, like the rank intervals.

Every tool, every number (95% intervals)

Leaked secrets (Samsung CredData)

Rank	Tool	Precision	Recall	F1
1	deepsecrets 2.2.0	0.80 [0.79, 0.82]	0.77 [0.75, 0.78]	0.78
2	Penthera 2.0.0	0.89 [0.87, 0.90]	0.64 [0.62, 0.66]	0.74
3	noseyparker 0.24.0	0.76 [0.74, 0.78]	0.62 [0.60, 0.64]	0.69
4	gitleaks 8.30.1	0.85 [0.84, 0.86]	0.37 [0.35, 0.39]	0.52
5	ripsecrets 0.1.11	0.65 [0.64, 0.67]	0.35 [0.33, 0.37]	0.45
6	kingfisher 2.14.0	0.96 [0.94, 0.97]	0.29 [0.28, 0.31]	0.45
7	detect-secrets 1.5.0	0.30 [0.29, 0.31]	0.53 [0.51, 0.56]	0.38
8	secretlint 13.0.7	0.92 [0.89, 0.94]	0.19 [0.18, 0.21]	0.32
9	whispers 2.4.0	0.46 [0.43, 0.50]	0.09 [0.08, 0.10]	0.15
10	trufflehog 3.99.3	0.40 [0.35, 0.45]	0.05 [0.05, 0.07]	0.10
–	credsweeper 1.19.4 ¹	1.00 [1.00, 1.00]	0.98 [0.98, 0.99]	0.99
–	Penthera 1.9.0	0.56 [0.51, 0.60]	0.10 [0.09, 0.12]	0.18
	Free tools, mean / median	0.68 / 0.76	0.36 / 0.35	0.43 / 0.45

Malicious npm packages (DataDog)

Rank	Tool	Caught	False alarms on benign packages	Caught minus false alarms
1	Penthera 2.0.0	0.71 [0.62, 0.78] (79/112)	0.00 [0.00, 0.02] (0/150)	0.71
2	malcontent 1.27.1 (bf280ad6), yara-x 1.21.0	0.68 [0.59, 0.76] (76/112)	0.05 [0.03, 0.10] (8/150)	0.63
3	GuardDog 3.2.0 ²	0.62 [0.52, 0.70] (69/112)	0.03 [0.01, 0.07] (4/150)	0.59
4	ossgadget 0.2.20 (414b6a59)	0.94 [0.88, 0.97] (105/112)	0.89 [0.83, 0.93] (133/150)	0.05
5	clamav 1.5.4	0.01 [0.00, 0.05] (1/112)	0.00 [0.00, 0.02] (0/150)	0.01
6	yara yara-python 4.5.4 (YARA 4.5), YARA-Forge core 20261004	0.00 [0.00, 0.03] (0/112)	0.00 [0.00, 0.02] (0/150)	0.00
–	osv-scanner 2.6.0 ³	0.90 [0.83, 0.94] (101/112)	0.01 [0.00, 0.04] (1/150)	0.90
–	Penthera 1.9.0	0.57 [0.48, 0.66] (64/112)	0.00 [0.00, 0.02] (0/150)	0.57

Malicious PyPI packages (DataDog)

Rank	Tool	Caught	False alarms on benign packages	Caught minus false alarms
1	Penthera 2.0.0	0.87 [0.81, 0.92] (131/150)	0.05 [0.03, 0.10] (8/150)	0.82
2	GuardDog 3.2.0 ²	0.85 [0.79, 0.90] (128/150)	0.11 [0.07, 0.17] (16/147)	0.74
3	malcontent 1.27.1 (bf280ad6), yara-x 1.21.0	0.93 [0.87, 0.96] (139/150)	0.22 [0.16, 0.29] (32/147)	0.71
4	yara yara-python 4.5.4 (YARA 4.5), YARA-Forge core 20261004	0.25 [0.18, 0.32] (37/150)	0.00 [0.00, 0.03] (0/147)	0.25
5	clamav 1.5.4	0.00 [0.00, 0.02] (0/150)	0.00 [0.00, 0.03] (0/147)	0.00
6	ossgadget 0.2.20 (414b6a59)	0.77 [0.70, 0.83] (116/150)	0.97 [0.93, 0.99] (143/147)	-0.20
7	aura 2.1 (SourceCode-AI/aura b40e6dd2)	0.59 [0.51, 0.67] (88/149)	0.83 [0.75, 0.88] (100/121)	-0.24
8	bandit4mal lyvd/bandit4mal 03ba95f3 (bandit 1.6.3 fork)	0.59 [0.51, 0.67] (89/150)	0.84 [0.78, 0.89] (124/147)	-0.25
–	Penthera 1.9.0	0.83 [0.77, 0.88] (125/150)	0.09 [0.06, 0.15] (14/150)	0.74
–	osv-scanner 2.6.0 ³	0.74 [0.66, 0.80] (110/149)	0.00 [0.00, 0.03] (0/147)	0.74

Injection bugs in JavaScript libraries (SecBench.js)

Rank	Tool	Command injection	Code injection	Both
1	Penthera 2.0.0	35/47	10/17	0.70 [0.58, 0.80]
2	odgen c5157ee	36/46	6/16	0.68 [0.55, 0.78]
3	codeql 2.27.2 (used under the GitHub CodeQL terms, for research on open-source code)	37/47	4/17	0.64 [0.52, 0.75]
4	eslint-plugin-security 4.2.0	32/47	9/17	0.64 [0.52, 0.75]
5	semgrep 1.180.0	15/47	9/17	0.38 [0.27, 0.50]

| 6 | graudit 849d7c7 | 12/47 | 10/17 | 0.34 [0

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Penthera

What it does

Install

Install Node.js (if you don’t have it)

Open the Claude desktop app’s settings file

Paste these settings and save the file

Quit Claude and open it again

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What you can do instead

Install Node.js (if you don’t have it)

Open Terminal

Paste this command and press Enter

Type /mcp in Claude Code

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Install Node.js (if you don’t have it)

Click this button to open Cursor

Open the AI chat in Cursor in Agent mode

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Install Node.js (if you don’t have it)

Click this button to open VS Code

Open the AI chat in VS Code in Agent mode

Try it

Installed on your computer

At a glance

Which apps can use it

Related guides

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

Published vulnerabilities (OSV.dev)

Discussion

User reviews

Compared with others in Cybersecurityi

Common questions

Similar alternatives

GitHits

Dependency Management MCP Server

Snyk MCP

Draugr

Spotdb

README from the maker

Penthera: your open-source cyber security agent

What it is

Start in 30 seconds

Public benchmarks

Leaked secrets (Samsung CredData)

Malicious npm packages (DataDog)

Malicious PyPI packages (DataDog)

Injection bugs in JavaScript libraries (SecBench.js)