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

five46

by sekharsdetversion 0.2.3i★ –iRuns on your computer
Registry nameio.github.sekharsdet/five46

Install

Overview

Description from the maker (original English)

BYOK, fully local AI agent that tests your app/API and writes a real Playwright spec on success.

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: FIVE46_LLM_PROVIDER, FIVE46_LLM_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: FIVE46_LLM_PROVIDER, FIVE46_LLM_API_KEY, FIVE46_MCP_ALLOW_WRITES, FIVE46_MCP_ALLOW_DELETES, FIVE46_MCP_CONCURRENCY

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": {
    "five46": {
      "command": "npx",
      "args": [
        "-y",
        "five46",
        "mcp"
      ],
      "env": {
        "FIVE46_LLM_PROVIDER": "your-value",
        "FIVE46_LLM_API_KEY": "your-value",
        "FIVE46_MCP_ALLOW_WRITES": "your-value",
        "FIVE46_MCP_ALLOW_DELETES": "your-value",
        "FIVE46_MCP_CONCURRENCY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add five46 --env FIVE46_LLM_PROVIDER=your-value --env FIVE46_LLM_API_KEY=your-value --env FIVE46_MCP_ALLOW_WRITES=your-value --env FIVE46_MCP_ALLOW_DELETES=your-value --env FIVE46_MCP_CONCURRENCY=your-value -- npx -y five46 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": {
    "five46": {
      "command": "npx",
      "args": [
        "-y",
        "five46",
        "mcp"
      ],
      "env": {
        "FIVE46_LLM_PROVIDER": "your-value",
        "FIVE46_LLM_API_KEY": "your-value",
        "FIVE46_MCP_ALLOW_WRITES": "your-value",
        "FIVE46_MCP_ALLOW_DELETES": "your-value",
        "FIVE46_MCP_CONCURRENCY": "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": {
    "five46": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "five46",
        "mcp"
      ],
      "env": {
        "FIVE46_LLM_PROVIDER": "your-value",
        "FIVE46_LLM_API_KEY": "your-value",
        "FIVE46_MCP_ALLOW_WRITES": "your-value",
        "FIVE46_MCP_ALLOW_DELETES": "your-value",
        "FIVE46_MCP_CONCURRENCY": "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

  • FIVE46_LLM_PROVIDER required env
    LLM provider to use: openai, anthropic, gemini, groq, or bedrock
  • FIVE46_LLM_API_KEY secret required env
    Your own API key for the chosen provider (for bedrock, your AWS region instead)
  • FIVE46_MCP_ALLOW_WRITES env
    Set to 1 to unlock POST/PUT/PATCH for the five46_api tool (read-only by default)
  • FIVE46_MCP_ALLOW_DELETES env
    Set to 1 to unlock DELETE (five46_api) and destructive-looking browser clicks (five46_test)
  • FIVE46_MCP_CONCURRENCY env
    Max concurrent scenarios for story mode (default: 2 for five46_test, 3 for five46_api; hard-capped at 5)

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 sekharsdet, 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 Web & browsersi

  • More stars than 0% of the other 878 servers in this category
  • Published to the registry more recently than 27% of the other 878 servers in this category
  • Basic checks equal to or better than 100% of the other 878 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 five46 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: FIVE46_LLM_PROVIDER, FIVE46_LLM_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 (0.2.3) reached the registry 3 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

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MCP Server Browser

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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.

five46

Say what should work, in plain English. An AI agent checks it against your real app or API, using your own LLM key, and hands you a real Playwright test.

You just built something and want to know whether it actually works, before writing a test. Give five46 a goal like *"log in and confirm the dashboard loads"* or *"create a user via POST, then confirm it via GET"*. An LLM (OpenAI, Anthropic, Gemini, Groq or AWS Bedrock, with your key) drives your real app or API one action at a time. It tells you honestly whether the goal was met, with a root-cause hypothesis when it wasn't. A successful run is saved as a standalone Playwright (or node:test) spec, so today's check becomes tomorrow's regression test, and running it needs no five46 or LLM.

Quick start

npm install -g five46

npx playwright install chromium # one-time browser download five46 config # pick a provider and paste a key (Gemini's is free) five46 doctor # confirms the key works five46 test http://localhost:3000 --goal "log in as demo@example.com and confirm the dashboard says Welcome back"

You get a pass or fail (and a matching exit code), a report with screenshots and, for failures, a root-cause hypothesis, plus a five46-agent-*.spec.ts you can commit and run with npx playwright test. Testing an API instead? Use five46 api --goal "...". It's read-only unless you pass --allow-writes.

Status: early and actively developed. Verified end-to-end against dozens of real-world sites and APIs.

Check every pull request

The five46 GitHub Action reads the Acceptance criteria section of a pull request's description and checks each item against the PR's preview deployment. It keeps one PR comment up to date with the verdict per criterion, why each failure failed, and a ready-to-commit spec for every criterion that passed.

on: deployment_status   # Vercel, Netlify and other preview deploys

jobs: five46: if: github.event.deployment_status.state == 'success' runs-on: ubuntu-latest permissions: { contents: read, pull-requests: write } steps:

  • uses: sekharsdet/five46-action@v1 with: url: ${{ github.event.deployment_status.target_url }} api-key: ${{ secrets.FIVE46_API_KEY }}

How it compares

five46Playwright Test Agentsplaywright codegenCloud AI testing platforms
You provideA goal or acceptance criteria in plain EnglishA seed test and a request, inside an AI coding toolYour own clicksTest descriptions in their app
RunsCLI, CI, GitHub Action or MCP toolInside an AI coding tool, such as VS CodeLocally, while you clickTheir cloud
Built to give a pass/fail verdict on the appYes, with a root-cause hypothesisNot its focus: it generates and repairs testsNoYes
API testingYes (node:test output)Browser-focusedNoVaries
Proves assertions catch failuresYes (--verify mutation check)No built-in checkNoVaries
LLM and costYour key, any of 5 providersYour coding agent's modelNoneTheir subscription
Your app data goes toOnly your LLM providerYour coding agent's providerNowhereTheir platform
OutputPlain Playwright or node:test filesPlain Playwright filesPlain Playwright filesUsually their runner

Already working in an AI coding tool and growing a Playwright suite there? Playwright's own agents are a great fit, especially the healer for keeping existing tests green. five46 is for getting a verdict: is this feature working right now, in CI or on a PR, for a browser flow or an API, with any LLM you already pay for. More detail is in Why five46.

Highlights

  • Safe by default. API runs are read-only unless you unlock writes; destructive-looking clicks ("Delete account") are blocked unless allowed.
  • Login credentials never reach the LLM. It sees placeholders, and the real values are filled in locally. Log in once, then reuse the session.
  • Acceptance criteria in, verdicts out. --story splits a user story or ticket into independent scenarios and reports pass/fail per criterion.
  • Specs you can trust. --verify-clean-session re-runs the spec cold; --verify mutates its assertions and requires them to fail.
  • Works with any current key. If your provider retires a model, five46 finds a current one your key can use. You can also pin one with FIVE46_LLM_MODEL.
  • Fits your tools. CI-friendly exit codes, --report JSON for dashboards, flaky-run detection (--repeat), video recording, and an MCP server for IDE assistants.

Docs

  • Configuration: providers, getting a key, five46 doctor, choosing models
  • CLI reference: every command and flag, login sessions, API testing, story mode, verification, reports
  • MCP server: use five46 from an IDE-embedded AI assistant
  • Security model: what leaves your machine, what five46 guards, and what's your call
  • Why five46: design choices, the full feature list, comparisons
  • CHANGELOG

Known limitations

  • **No *closed* shadow DOM traversal.** Elements inside a mode: "closed" shadow root aren't visible to the agent's page snapshot (a closed shadow root is deliberately inaccessible to external tooling in general, not just five46). *Open* shadow roots, the overwhelming majority of real-world web components, work fine, as do and content.
  • Chromium only for browser mode, with no Firefox or WebKit yet.
  • A run itself is not deterministic. The same goal against the same page can take a different path next time. The generated spec is the frozen, repeatable artifact.

Contributing

Issues and pull requests are welcome. See CONTRIBUTING.md.

git clone https://github.com/sekharsdet/five46.git

cd five46 npm install npm run build node dist/cli.js test --goal "..." npm test

If five46 is useful to you, a ⭐ on GitHub helps other people find it.

License

MIT

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