What is the key difference between PWA Debug Layer and Shadcn Ui MCP Server?

PWA Debug Layer belongs to the Developer Tools category with local stdio execution, while Shadcn Ui MCP Server belongs to the Developer Tools category with local stdio execution.

How do I install PWA Debug Layer or Shadcn Ui MCP Server in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are PWA Debug Layer and Shadcn Ui MCP Server free or paid?

PWA Debug Layer operates under a Free / Open Source model (No auth required). Shadcn Ui MCP Server operates under a Free / Open Source model (API Key required).

Which MCP server has more tools and community activity?

PWA Debug Layer lists 27 tools with 0 views and 0 GitHub stars. Shadcn Ui MCP Server lists 10 tools with 3 views and 2,999 GitHub stars.

Can I use both PWA Debug Layer and Shadcn Ui MCP Server together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

PWA Debug Layer vs Shadcn Ui MCP Server

In-depth architectural comparison of the PWA Debug Layer and Shadcn Ui MCP Server MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

PWA Debug Layer

Developer Tools · Local stdio

Quality: 48/100 (Fair) | Auth: No auth required

Shadcn Ui MCP Server

Developer Tools · Local stdio

Quality: 68/100 (Great) | Auth: API Key required

Verdict Summary: Choose PWA Debug Layer if you need specialized Developer Tools tools running via a local process. Choose Shadcn Ui MCP Server if your workspace requires Developer Tools integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose PWA Debug Layer when:

You need dedicated capabilities in the Developer Tools domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: host_status, host_list_registrations, session_ping.

Explore PWA Debug Layer Details

Choose Shadcn Ui MCP Server when:

You need dedicated capabilities in the Developer Tools domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: API Key required (Free / Open Source).
You have access to required keys: MCP_TRANSPORT_MODE, MCP_PORT, MCP_HOST, MCP_CORS_ORIGINS, GITHUB_PERSONAL_ACCESS_TOKEN, UI_LIBRARY.
Primary tools included: get_component, get_component_demo, list_components.

Feature & Specification Comparison

Specification	PWA Debug Layer Developer Tools	Shadcn Ui MCP Server Jpisnice Developer Tools
Summary	Debug PWAs in your real browser via MCP: service-worker, cache, installability & framework state.	MCP server that gives AI assistants seamless access to shadcn/ui v4 components, blocks, demos, and metadata.
Category & Scope	Developer Tools

Tools & Capabilities Breakdown

PWA Debug Layer Tools (27)

host_status

Install/liveness state: registered IDs, manifest paths, launcher path, active connections. Cheap, idempotent. **Always call first.

host_list_registrations

Read registered IDs; destructive cleanup to re-bootstrap.

session_ping

Full MCP → IPC → NMH → SW → page-world round-trip with typed `pageWorldError` codes + self-heal.

pdl_check_setup

Diagnose setup → `{ ok, gaps[], recommendations[] }` (CDP reachable, manifest installed, extension present, ID registered).

pdl_browser_status

Managed launches (browser, profile mode, port, pid) with live debug-port re-probe + extension SW heartbeat.

console_tail

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

PWA Debug Layer Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "pwa-debug-layer": {
      "command": "npx",
      "args": [
        "-y",
        "chrome-devtools-mcp@latest"
      ]
    }
  }
}

Shadcn Ui MCP Server Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "jpisnice-shadcn-ui-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@jpisnice/shadcn-ui-mcp-server"
      ],
      "env": {
        "MCP_TRANSPORT_MODE": "YOUR_MCP_TRANSPORT_MODE_HERE",
        "MCP_PORT": "YOUR_MCP_PORT_HERE",
        "MCP_HOST": "YOUR_MCP_HOST_HERE",
        "MCP_CORS_ORIGINS": "YOUR_MCP_CORS_ORIGINS_HERE",
        "GITHUB_PERSONAL_ACCESS_TOKEN": "YOUR_GITHUB_PERSONAL_ACCESS_TOKEN_HERE",
        "UI_LIBRARY": "YOUR_UI_LIBRARY_HERE"
      }
    }
  }
}

Frequently Asked Questions

PWA Debug Layer is categorized under Developer Tools and uses a local stdio subprocess. In contrast, Shadcn Ui MCP Server belongs to Developer Tools using local stdio subprocess. Select PWA Debug Layer when you need capabilities focused on developer tools and Shadcn Ui MCP Server when you require tools for developer tools.

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