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dev3000Vercel Labs

AI-Powered Debugging

The browser forAI-based development

Captures server + browser logs, events, and network requests. Takes automatic screenshots and stiches it all into a unified, timestamped feed for AI and you.

Get Started View on GitHub

Quick Start

Get up and running in seconds

1Install dev3000

pnpm i -g dev3000

2Replace your dev command

Instead of: pnpm dev

→

Run: dev3000

Instead of: next dev -p 5000

→

Run: dev3000 --port 5000

Instead of: pnpm build-start

→

Run: dev3000 --script build-start

Pro tip: Use the shortcut

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3Connect to Claude/Cursor

Add the MCP server to Claude Desktop or Cursor:

claude mcp add --transport http --scope user dev3000 http://localhost:3684/api/mcp/mcp

Now Claude can read your logs, search for errors, and help debug in real-time!

What happens next?

Server Starts

Your dev server launches and dev3000 begins monitoring

Browser Opens

Automated CDP-connected browser starts capturing events and screenshots

Logs Available

Visit localhost:3684/logs to see your unified timeline

Everything AI Needs to Debug

Comprehensive monitoring that captures your entire development context in one unified timeline

Server Logs

Complete server output and console messages with timestamps

Browser Events

Console messages, errors, clicks, scrolls, and key events

Network Requests

All HTTP requests and responses with full details

Auto Screenshots

Automatic captures on navigation, errors, and key events

See It In Action

Watch how dev3000 captures everything in a unified timeline

dev3000.log

12:54:03.033[SERVER]✓ Ready on http://localhost:3000

12:54:03.435[BROWSER][CONSOLE LOG] App initialized successfully

12:54:04.120[NETWORK]GET /api/users → 200 (142ms)

12:54:05.234[SCREENSHOT]📷 Captured: /login → /dashboard navigation

12:54:06.891[BROWSER][USER ACTION] Click: #submit-button

12:54:07.012[ERROR]TypeError: Cannot read property 'id' of undefined

12:54:07.013[SCREENSHOT]📷 Auto-captured: Error state

12:54:07.256[NETWORK]POST /api/submit → 500 (23ms)

Real-time monitoring active●8 events captured in the last 4 seconds

Everything is timestamped and unified - server logs, browser events, network requests, and screenshots

Built for AI Assistants

When you have a bug, Claude can see your server output, browser console, network requests, and screenshots all in chronological order. No more context switching or missing details.

Unified timestamped feed

MCP server integration

Visual timeline at localhost:3684/logs

# Give AI your logs

Read /tmp/dev3000.log

# Or use MCP tools at

http://localhost:3684/api/mcp/mcp

# Visual timeline at

http://localhost:3684/logs

Vibes

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