Brandrail

Name: Brandrail
Author: brandrail-app

by brandrail-appversion 0.10.2i★ –iRuns on your computer

Registry nameau.com.brandrail/brandrail

Install

Overview

Description from the maker (original English)

Design system guardrails for AI coding tools: tokens, components and a brand checker. Runs locally.

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
UsageiEarly↓ 1.8K/wk · ★ –

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: Marketing & social media
You need to fill in: BRANDRAIL_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: BRANDRAIL_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?

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": {
    "brandrail": {
      "command": "npx",
      "args": [
        "-y",
        "brandrail",
        "mcp"
      ],
      "env": {
        "BRANDRAIL_KEY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add brandrail --env BRANDRAIL_KEY=your-value -- npx -y brandrail 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": {
    "brandrail": {
      "command": "npx",
      "args": [
        "-y",
        "brandrail",
        "mcp"
      ],
      "env": {
        "BRANDRAIL_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": {
    "brandrail": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "brandrail",
        "mcp"
      ],
      "env": {
        "BRANDRAIL_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

BRANDRAIL_KEY secret env
Optional. API key from Brandrail Dashboard > Connect, to load your organisation's Brand Kit. Without it, the repo's brandrail.config.json or starter tokens are used.

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 8, 2026

✓ Pass
Maker matches the repo
The registry name was verified against the domain brandrail.com.au (the registry checks domain ownership)
… 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 Marketing & social mediai

More stars than 0% of the other 3593 servers in this category
Published to the registry more recently than 100% of the other 3593 servers in this category
Basic checks equal to or better than 100% of the other 3593 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 Brandrail 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: BRANDRAIL_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 (0.10.2) reached the registry today.

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: MCP YouTube Transcript, Google Analytics MCP, BibiGPT YouTube Video Summarizer

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.

brandrail

Keep AI-generated UI on-brand. brandrail checks code and live pages against your design system (Brand Kit), and writes your rules into the files AI coding tools read.

npx brandrail init            # brandrail.config.json, src/brandrail.tokens.css + AGENTS.md, CLAUDE.md, Cursor/Copilot/Windsurf/Gemini rules

npx brandrail check # violations + brand score for this repo npx brandrail scan # check a running page in a real browser

With a Brandrail account

npx brandrail connect                     # sign in through the browser; sets up the Brand Kit, AI rule files,

the MCP server for Claude Code / Cursor / Copilot, and the UI kit

npx brandrail check --changed --upload # only changed lines, results in the dashboard

connect makes an API key on your machine and saves it in ~/.config/brandrail/credentials.json (mode 600); Brandrail only ever receives its hash, and the files it writes into the repo hold no key. AI tools start npx brandrail mcp, which checks code on your machine: code is never uploaded. In CI, set BRANDRAIL_KEY instead.

MCP server

brandrail mcp is an MCP server for Claude Code, Cursor, Copilot, Codex, Windsurf and any other MCP client. It runs on your machine over stdio; code is checked locally and never uploaded. It works without an account, using starter tokens; connect an account (or set BRANDRAIL_KEY) to use your own Brand Kit.

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

npx brandrail connect writes this config for you, plus the rule files each AI tool reads.

Tool	What it does
`get_guidelines`	The project's design system rules: components to use in its framework, allowed tokens, what the checker enforces. Called once before writing UI.
`get_design_tokens`	Every colour, spacing, radius and type token with the CSS variable to use.
`find_component`	Finds the component for a need ("date picker", "primary action") with its import, rules and an example.
`get_component_docs`	Full docs for one component in the project's framework: import or tag, props, rules, example.
`get_template`	A whole page (list, detail, form, settings, dashboard, sign-in) built from your components, with the files to create and the page's rules.
`get_migration_map`	What replaces each piece of Material, MUI, Bootstrap, Ant, Chakra or PrimeNG.
`validate_snippet`	Runs the checker on generated code and returns a brand score and each fix.

All tools are read-only. Docs: https://www.brandrail.com.au/docs/connect

Commands

Command
`check [paths]`	`--format pretty\	json\	markdown\	github`,` --fail-below 80`,` --changed [base]`,` --upload`
`scan`	`--pages 3`, `--storage-state auth.json` (pages behind a login), `--wait 2000`, `--upload`. Needs `npm i -D playwright && npx playwright install chromium`
`init`	`--from-api`, `--mcp`, `--tokens-css` , `--no-rules`, `--force`. Writes the Brand Kit as CSS variables; import that file once at your app entry
`import`	DTCG, Tokens Studio or Figma variables JSON into the config. `--replace`, `--primitives`
`rules`	List the rules
`connect`	`--no-browser`, `--no-install`, `--remote` (hosted MCP server), `--framework`, `--force` (sign in again)
`mcp`	The MCP server over stdio, for AI tools. `--framework`, `--report` (send scores, never code)
`migrate [paths]`	What's left on the way to the design system: other UI libraries (Material, MUI, Bootstrap, Ant Design, Chakra, PrimeNG) per library and per file. `--json`, `--top 30`, `--upload`
`report`	A shareable HTML handover report (paths and counts, never code). `--out file.html`
`whoami`, `logout`	Show or remove the saved sign-in

Nothing is uploaded unless you pass --upload, and code snippets are never uploaded.

Licence

MIT. The Brandrail web app and dashboard are a separate, paid service: https://www.brandrail.com.au/pricing

Brandrail

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 Marketing & social mediai

Common questions

Alternatives

MCP YouTube Transcript

Google Analytics MCP

BibiGPT YouTube Video Summarizer

README from the maker

brandrail

With a Brandrail account

the MCP server for Claude Code / Cursor / Copilot, and the UI kit

MCP server

Commands

Licence