App Debug MCP Server

by booyaka101

Debug both ends of MCP Apps — render your server's app in a Playwright browser with 7 automated diagnostics, 12 under --profile (npx mcp-app-debug <server-url>), or grade a HOST's MCP Apps conformance with a probe fixture server (npx mcp-app-debug host).

0Node.jsstdio

context tax

pending

security

pending

cold start

pending

freshness

pending

Our reading of App Debug, from the data

App Debug is a browser automation MCP server from booyaka101.

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

With 0 GitHub stars it ranks #560 of 1,199 browser automation servers we index.

It runs locally on your machine over stdio.

Install App Debug MCP server

claude mcp add app-debug -- npx -y mcp-app-debug

{
  "mcpServers": {
    "app-debug": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-app-debug"
      ]
    }
  }
}

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

{
  "mcpServers": {
    "app-debug": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-app-debug"
      ]
    }
  }
}

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

{
  "servers": {
    "app-debug": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "mcp-app-debug"
      ]
    }
  }
}

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

{
  "mcpServers": {
    "app-debug": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-app-debug"
      ]
    }
  }
}

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

Freshness

Not enough public signals yet to judge maintenance.

Last commit (default branch)
2026-09-23 · 25d ago · GitHub
Latest release
2026-09-21 · 27d ago · GitHub · v0.9.0
Package published
no data · npm/PyPI
Registry entry updated
no data · official registry

How it compares in Browser Automation

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

Server	Stars	Tools	Tokens / turn	Freshness	Runs
App Debug (this)	0	—	not measured	—	local
Browser Use	118,444	—	not measured	Active	local
Scrapling	88,517	—	not measured	Active	local
Browser	39,318	—	not measured	Active	local + hosted
Playwright	38,349	—	not measured	Active	local
Browser	36,690	—	not measured	Active	—

All browser automation MCP servers

FAQ

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

Run: claude mcp add app-debug -- npx -y mcp-app-debug. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does App Debug require an API key?

No required environment variables are declared in its published metadata.

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

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

›Is App Debug in the official MCP registry?

No. It was indexed from npm.

Sources and method

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.