Ensemble MCP Server

by hearthbyte Your server? Claim it

local only

Ensemble runs on your own machine — the client starts it, so there is no endpoint to ping. 103 installs a week from npm. Last commit 11 Oct 2026.

AI-ready design toolkit: color palettes, typography, spacing, shadows and accessibility audits.

Installs per day peak 301 · avg 16 · +178% w/w

a month agotoday

103

Installs / week

npm · @hearthbyte/ensemble-mcp

Stars

0 open issues

11 Oct 2026

Last commit

2 releases in 90 days

MIT

License

TypeScript

Nothing serious here today

Today is the operative word: we check Ensemble every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add ensemble -- npx -y @hearthbyte/ensemble-mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "ensemble": {
      "command": "npx",
      "args": [
        "-y",
        "@hearthbyte/ensemble-mcp"
      ]
    }
  }
}

~/.codex/config.toml

[mcp_servers.ensemble]
command = "npx"
args = ["-y", "@hearthbyte/ensemble-mcp"]

.cursor/mcp.json

{
  "mcpServers": {
    "ensemble": {
      "command": "npx",
      "args": [
        "-y",
        "@hearthbyte/ensemble-mcp"
      ]
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "ensemble": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@hearthbyte/ensemble-mcp"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: ENSEMBLE_API_KEY (Ensemble Pro API key (hearthbyte.dev/ensemble/pricing). Without it only the free a11y_validate tool works).

Alternatives to Ensemble

same job, measured the same way

AllGoodInsp

by allgoodinsp

Curated design references for AI — real CSS values, typography specs, and color palettes.

answering

OverlayQA

by overlayqa

Run accessibility, contrast, and design token audits and file QA issues from your AI coding tool.

481 installs/wk answering

A11Y Toolkit

by kinti

The accessibility layer for AI coding agents: audit, fix, document and watch - WCAG 2.2.

7 986 installs/wk local only

Kilotest

by jrpool

Ensemble testing of web pages for accessibility, usability, and web standards

13 tools answering

Siteaudit

by thegridwork

Audit websites for accessibility, performance, SEO, design, and mobile. 47 WCAG checks.

39 installs/wk local only

DesignScan

by ms-zaman

Extract a website’s design tokens (colors, type, spacing, shadows) as DESIGN.md, W3C, or CSS.

51 installs/wk local only

Tapsite

by mgriffen

MCP server for web inspection, design system extraction, and accessibility audits

63 installs/wk local only

Jinero

by jinero

AI-agent design tools: fonts, font recognition, palettes, color naming, contrast, code, SVG, CSS.

15 tools answering

Ensemble — questions

Answers built from our own checks of this server.

Why is there no uptime for Ensemble?

Ensemble runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @hearthbyte/ensemble-mcp was installed 103 times last week.

How do I connect Ensemble?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls @hearthbyte/ensemble-mcp straight from npm; nothing to host, nothing to sign up for.

How many people use Ensemble?

The npm package @hearthbyte/ensemble-mcp was installed 103 times in the last week. Week over week that is +178%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Ensemble open source?

Yes — it is published under the MIT licence, written in TypeScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.