MCP (Model Context Protocol) server to unminify / beautify JS, CSS, and HTML code. Wraps js-beautify behind a single unminify tool with auto-detection of code type.

npm install
npm run build

Run as a subprocess — typical for MCP client configs (Claude Desktop, VS Code, etc.):

unminify-mcp
# or
node dist/index.js

Configure in claude_desktop_config.json:

{
  "mcpServers": {
    "unminify": {
      "command": "node",
      "args": ["/path/to/unminify-mcp/dist/index.js"]
    }
  }
}

unminify-mcp --transport http --port 3000

Endpoint: POST http://localhost:3000/mcp

unminify-mcp --transport sse --port 3000

Endpoints:

• GET http://localhost:3000/sse — SSE event stream
• POST http://localhost:3000/messages?sessionId=... — client messages

Unminify / beautify minified JS, CSS, or HTML code.

Returns the beautified code as text content with detectedType in the metadata.

npm run dev          # Run with tsx (stdio transport)
npm run build        # Compile TypeScript → dist/

• js-beautify — the underlying beautification engine
• Original unminify2.com browser tool