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Ensemble MCP server

by hearthbyte.dev·dev.hearthbyte/ensemble·v1.0.0
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AI-ready design toolkit: color palettes, typography, spacing, shadows and accessibility audits.

B82/100grade B
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Safety scan
B82/100

full report

Adoption
Growing

0 stars337 downloads/wk

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Ensemble tools (10)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • a11y_validate

    Check one foreground and background color pair for accessibility (WCAG 2.1 and APCA). FREE - No API key required. Returns the contrast ratio, pass or fail for normal and large text, and suggested fixes.

  • bridge_generate_theme

    Generate a complete dark mode from the light system built on a brand color: dark surfaces and text, adjusted palette, shadows and spacing, with contrast checked.

  • cadence_generate_grid

    Generate a responsive grid: breakpoints, column counts, gutters and max widths, sized from the spacing system. density: compact, balanced (the default), airy.

  • chord_generate_shadows

    Generate a shadow and elevation system tinted by the palette: elevation levels, a focus ring and a glow. shadow_intensity: flat (borders, no depth), subtle (the default), pronounced, dramatic.

  • compose_export

    Build the whole design system from one brand color and export it: colors, typography, spacing, shadows, grid, motion and accessibility notes, as ready-to-use files. formats: css (custom properties), json, tailwind (config) and scss. Pass the same preferences you used with the other tools so the export matches them.

  • duet_pair_fonts

    Pick a heading, body and monospace font pairing with a type scale, chosen for a typographic character. type_style: modern (clean sans), classical (serif-led), minimalist (restrained), expressive (display-led). Returns font families, weights, fallbacks and the size scale.

  • harmony_generate_palette

    Generate a working color system from one brand color: primary, secondary and accent ramps, neutrals, and semantic colors (success, warning, error, info). color_scheme decides how the secondary and accent hues are derived: • monochromatic — one hue, many shades (elegant, unified) • analogous — neighbors on the wheel (calm, cohesive; the default) • complementary — the opposite hue (high contrast) •

  • pitch_audit_contrast

    Audit the contrast of the palette built from a brand color: which text and background pairs pass WCAG, which fail, and what to change. Returns a contrast matrix, the failures and recommendations. To check one specific foreground and background pair, use a11y_validate (free, no key). audit_all_combinations checks every pair in the palette, not just the meaningful ones.

  • riff_generate_motion

    Generate a motion system: durations, easing curves (cubic-bezier) and ready-made transition presets. animation_style: none (reduced motion), minimal (the default), fluid (smooth, longer), energetic (snappy, springy).

  • tempo_generate_scale

    Generate a spacing system tuned to the type: a base unit, a spacing scale, semantic spacing (padding, gaps, sections) and layout measures. density: compact (dense UIs), balanced (the default), airy (generous whitespace).

Public scan report

scanner v0.1.10 · 2026-10-13 · same rubric, same numbers if you re-run it

no findings
  • Code scan5 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitystatic API keys via environment variables6/15
  • Maintenancelast push 2 days ago15/15
  • Maintainer identitynamespace and repository owner differ; GitHub account older than a year; website matches verified namespace7/10
Overall 82/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Ensemble compares

Against every graded Media MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
82/100
higher than 65% of 1,337 Media servers
Tools
10
the typical Media server has 7
Tools that change things
0%
typical: 4%. Fewer write tools means less an agent can break
Downloads a week
337
more than 83% of 365 Media servers with a package

What its tools let an agent do: 10 read

Install Ensemble in Claude Code, Cursor or VS Code

Runs npx -y @hearthbyte/ensemble-mcp on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add ensemble -- npx -y @hearthbyte/ensemble-mcp
Add to Cursor

What the publisher says

From the Ensemble repository's README, as published. We do not edit it. Read it on GitHub

🎨 Ensemble MCP

Give your AI agent design taste.

Website · Documentation · Get API Key

What is this?

Ensemble MCP is a Model Context Protocol server that gives AI agents access to professional design tools. Generate color palettes, pair typography, create shadow systems, and export complete design tokens - all through natural conversation.

10 tools. One API. Infinite possibilities.

Every builder takes a brand color and an optional preferences object, so tools called separately agree with each other. Results are deterministic: the same color and preferences always give the same system.

Quick Start

Claude Desktop

Add to your claudedesktopconfig.json:

{
  "mcpServers": {
    "ensemble": {
      "command": "npx",
      "args": ["-y", "@hearthbyte/ensemble-mcp"],
      "env": {
        "ENSEMBLE_API_KEY": "your-api-key-here"
      }
    }
  }
}

Cursor / Cline

{
  "ensemble": {
    "command": "npx",
    "args": ["-y", "@hearthbyte/ensemble-mcp"],
    "env": {
      "ENSEMBLE_API_KEY": "your-api-key-here"
    }
  }
}

Manual Installation

npm install -g @hearthbyte/ensemble-mcp
ensemble-mcp

Example Prompts

Once installed, try these with your AI:

"Generate a triadic color palette from #6366F1"

"Give me a classical font pairing and an airy spacing system to go with it"

"Check if #FFFFFF text on #6366F1 background is accessible"

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Ensemble: common questions

Is Ensemble MCP server safe?
Mostly: it is graded B (82/100). Read the Ensemble safety report
How do I install Ensemble?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Ensemble need an API key?
Yes. The registry entry asks for ENSEMBLE_API_KEY.
Is Ensemble maintained?
The last commit was 24 days ago (2026-10-11). The latest release is v1.0.0.
What can I use instead of Ensemble?
Servers from other publishers that do the same job: OverlayQA MCP server, Dembrandt MCP server and melta UI MCP server. Compare all Ensemble alternatives.
How does Ensemble compare with other Media MCP servers?
safety score 82/100 (higher than 65% of 1,337 Media servers); tools 10 (the typical Media server has 7); tools that change things 0% (typical: 4%. Fewer write tools means less an agent can break). Full comparison.

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