NewMCP server for Cursor, Claude Code & Copilot

Your design system, enforced in every AI tool.

Everyone in your company is vibe-coding UI. Brandrail makes sure every button, colour and font they ship is yours, and catches the ones that slip through.

Free for one repo. Try the demo →

Agent · building FleetDashboard.tsx
import { Button, Card } from "@acme/ui"

export function FleetDashboard() {
  return (
    <Card padding="md">
      <Button variant="primary"> Schedule service</Button>
    </Card>
  )
}
✓ brandrail.find_component("primary action") → Button
✓ brandrail.validate_snippet → 0 violations
Add fleet maintenance page#482
brandrailbot commented
Brand score94/100
  • Header.tsx:18 hard-coded #3b82f6 → use color.accent.default
  • All buttons use @acme/ui
  • Contrast passes WCAG AA

Generate on-brand. Check what ships. Prove it to leadership.

Brand Kit

Import tokens from Figma or your codebase. Colours, type, spacing, radius and components, versioned like code.

Guardrail

One MCP server and rule files for Cursor, Claude Code, Copilot and Lovable. The AI can only use what you approved.

Checker

Every pull request and live URL gets a brand score, file-by-file violations and a one-click fix.

See brand drift before your customers do

A live score for every repo and app, the components people keep re-inventing, and a monthly report you can forward to the board.

fleet-portal
94
safety-forms (Lovable)
71
procurement-ui
58

Free for one repo. Forever.

Team from $249/month. Business and Enterprise with SSO, audit log and Australian data residency.