Ensemble MCP Server

by mpfeifer33dev.hearthbyte/ensemblev1.0.0

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

0Node.jsstdioofficial registry

context tax

pending

security

pending

cold start

pending

freshness

pending

Our reading of Ensemble, from the data

Ensemble is a design MCP server from mpfeifer33, listed in the official MCP Registry.

We haven't measured its tool list yet, so its token cost is unknown.

With 0 GitHub stars it ranks #278 of 696 design servers we index.

It runs locally on your machine over stdio and needs one secret (ENSEMBLE_API_KEY); use a scoped, least-privilege key.

Install Ensemble MCP server

claude mcp add ensemble -e ENSEMBLE_API_KEY='<ensemble-api-key>' -- npx -y @hearthbyte/ensemble-mcp

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

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

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

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "ensemble": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@hearthbyte/ensemble-mcp"
      ],
      "env": {
        "ENSEMBLE_API_KEY": "<ensemble-api-key>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

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

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
ENSEMBLE_API_KEY	—	yes	Ensemble Pro API key (hearthbyte.dev/ensemble/pricing). Without it only the free a11y_validate tool works.

Freshness

Not enough public signals yet to judge maintenance.

Last commit (default branch)
2026-10-11 · 8d ago · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-10-10 · 8d ago · official registry · v1.0.0

How it compares in Design

Against the most-starred design servers we index. Token cost is per model turn, measured from each server's live tool list.

Server	Stars	Tools	Tokens / turn	Freshness	Runs
Ensemble (this)	0	—	not measured	—	local
Figma Developer	16,007	—	not measured	Slowing	local
Design System	11,774	—	not measured	—	local
Magic	6,105	—	not measured	Active	—
Primer	3,918	—	not measured	—	local
Dembrandt	3,722	—	not measured	—	local

All design MCP servers

FAQ

›How do I install the Ensemble MCP server in Claude Code?

Run: claude mcp add ensemble -e ENSEMBLE_API_KEY='<ensemble-api-key>' -- npx -y @hearthbyte/ensemble-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Ensemble require an API key?

Yes. It expects ENSEMBLE_API_KEY, of which 1 is a secret.

›Can I use Ensemble as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is Ensemble in the official MCP registry?

Yes, as dev.hearthbyte/ensemble.

Sources and method

Official MCP Registry entry: updated 2026-10-10
GitHub repository: fetched 2026-10-19
Package registry (npm / PyPI): listed
Last checked against all sources: 2026-10-19

The description, packages and links come from the maintainer's own published metadata. Token cost, security signals, freshness and the reading above are MCPSkillHub's own measurements; see the methodology. Spot an error? Request a correction or claim the listing.