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

Val

by Wakizaraversion 0.10.1i★ –iRuns on your computer
Registry namecom.nyx-intelligence/val

Install

Overview

Description from the maker (original English)

QA agent for vibecoded apps. Real browser checks, your AI fixes them. Ship to green.

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: Web & browsers
  • You need to fill in: VAL_LICENSE_KEY

Install

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

Before you install

  • Basic checks: 0 of 1 passed
  • Runs on your computer with your user’s permissions (files, network, apps).
  • You fill in yourself: VAL_LICENSE_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": {
    "val": {
      "command": "npx",
      "args": [
        "-y",
        "@nyx-intelligence/val-mcp"
      ],
      "env": {
        "VAL_LICENSE_KEY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add val --env VAL_LICENSE_KEY=your-value -- npx -y @nyx-intelligence/val-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": {
    "val": {
      "command": "npx",
      "args": [
        "-y",
        "@nyx-intelligence/val-mcp"
      ],
      "env": {
        "VAL_LICENSE_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": {
    "val": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@nyx-intelligence/val-mcp"
      ],
      "env": {
        "VAL_LICENSE_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

  • VAL_LICENSE_KEY secret required env
    Your Val license key (vk_...). Subscribe at val.nyx-intelligence.com (4.99 USD per month) if you do not have one.

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

  • ! Caution

    Maker matches the repo

    The publisher (nyx-intelligence.com) is not the repo owner (Wakizara); someone else may have listed it

  • … 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 Web & browsersi

  • More stars than 0% of the other 875 servers in this category
  • Published to the registry more recently than 14% of the other 875 servers in this category
  • Basic checks equal to or better than 29% of the other 875 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 Val safe?

It passed 0 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: VAL_LICENSE_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 (0.10.1) reached the registry 5 months 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: Browser Use, Chrome DevTools MCP, MCP Server Browser

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

Browser Use

by browser-use

Lets AI do web tasks for you, such as filling forms, searching and extracting data, in the maker’s cloud browsers or on your computer.

Computer or cloud★ 120,087MITUpdated 16 days ago
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Chrome DevTools MCP

by ChromeDevTools

Lets AI use Chrome’s developer tools to inspect pages, find what makes them slow and spot errors. Made by the Chrome DevTools team.

Runs on your computer★ 54,821Apache-2.0Updated 15 days ago
Install

MCP Server Browser

by bytedance

MCP server for browser use access

Runs on your computer★ 39,550Apache-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.

Val QA scan — GitHub Action

Run Val, the QA agent for vibecoded apps, on every PR. Val drives a real browser against your preview URL, catches broken links, dead buttons, busted layouts, accessibility violations, and posts a report as a PR comment.

Requires a Val subscription

Val is a paid product. Get a license key at val.nyx-intelligence.com, store it as a repository secret (e.g. VAL_LICENSE_KEY), and pass it to the action.

Quick start

name: Val QA

on: pull_request

jobs: qa: runs-on: ubuntu-latest steps:

  • name: Deploy preview id: deploy

... your preview deployment step (Vercel, Netlify, etc.) ...

outputs.url should be the preview URL

  • name: Val scan uses: nyx-intelligence/val-action@v1 with: url: ${{ steps.deploy.outputs.url }} license-key: ${{ secrets.VAL_LICENSE_KEY }} devices: 'desktop,iPhone 14' fail-on: 'high'

Inputs

NameDefaultDescription
url(required)The URL Val should scan. Pass your preview deployment URL.
license-key(required)Your Val license key (vk_...). Get one at val.nyx-intelligence.com.
max-pages12Maximum same-origin pages to crawl.
devicesdesktopComma-separated device profiles, e.g. desktop,iPhone 14,Pixel 7.
fail-onhighSeverity that fails the action: high, medium, low, or never.
commenttruePost the report as a PR comment (true / false).
github-token${{ github.token }}Token used to post the PR comment.

Outputs

NameDescription
highNumber of high-severity findings.
mediumNumber of medium-severity findings.
lowNumber of low-severity findings.
report-pathPath to the raw report file.

What Val checks

  • Broken links and 4xx/5xx responses
  • Uncaught JS errors and console errors
  • Broken/missing images
  • Horizontal layout overflow on mobile
  • Clipped text in fixed containers
  • Cumulative Layout Shift (janky load)
  • A11y essentials: missing alt, unnamed buttons, unlabeled inputs, missing
  • Multi-device: catches bugs that appear only on mobile or only on desktop

Permissions

The action needs pull-requests: write to post comments:

permissions:

contents: read pull-requests: write

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