chrome-devtools-mcp

name	chrome-devtools-mcp
description	Chrome DevTools MCP — Google's official browser automation and testing server. Control Chrome via Puppeteer through MCP protocol: click, fill forms, navigate, screenshot, performance traces, network inspection, console debugging. Use for browser testing, web automation, performance analysis, UI testing, form filling, and visual regression.
homepage	https://github.com/ChromeDevTools/chrome-devtools-mcp

🌐 Chrome DevTools MCP

Google's official Chrome DevTools MCP server — gives AI agents full control of a live Chrome browser via Puppeteer and the Chrome DevTools Protocol.

Features

• Input automation — click, drag, fill forms, hover, press keys, upload files, handle dialogs
• Navigation — open/close/switch pages, wait for elements/network idle
• Screenshots & snapshots — capture page state visually and as DOM
• Performance traces — record and analyze Chrome performance traces with insights
• Network inspection — list/inspect network requests and responses
• Console debugging — read console messages with source-mapped stack traces
• Device emulation — emulate mobile devices, resize viewport
• Form automation — fill multiple form fields at once

Requirements

• Node.js v20.19+ (already available in OpenClaw)
• Chrome/Chromium browser

Quick Start

Install & verify

npx -y chrome-devtools-mcp@latest --help

Start the MCP server

# Standard (launches Chrome automatically)
npx -y chrome-devtools-mcp@latest

# Headless mode (for servers)
npx -y chrome-devtools-mcp@latest --headless

# Connect to existing Chrome (must be started with --remote-debugging-port=9222)
npx -y chrome-devtools-mcp@latest --browser-url=http://127.0.0.1:9222

# Disable telemetry
npx -y chrome-devtools-mcp@latest --no-usage-statistics --no-performance-crux

OpenClaw MCP Integration

Add to your openclaw.json under MCP servers:

{
  "mcp": {
    "servers": {
      "chrome-devtools": {
        "command": "npx",
        "args": ["-y", "chrome-devtools-mcp@latest", "--headless", "--no-usage-statistics"]
      }
    }
  }
}

Or use the setup script:

python3 {baseDir}/scripts/setup_chrome_mcp.py setup
python3 {baseDir}/scripts/setup_chrome_mcp.py status
python3 {baseDir}/scripts/setup_chrome_mcp.py test

Tool Reference

Input Automation (8 tools)

Tool	Description	Key Params
click	Click an element	uid (required), dblClick
drag	Drag element onto another	from_uid, to_uid
fill	Type text into input/textarea/select	uid, value
fill_form	Fill multiple form elements at once	elements[]
handle_dialog	Accept/dismiss browser dialogs	action (accept/dismiss)
hover	Hover over element	uid
press_key	Press keyboard key	key
upload_file	Upload file to input	uid, paths[]

Navigation (6 tools)

Tool	Description	Key Params
navigate_page	Go to URL	url
new_page	Open new tab	url
close_page	Close current tab	—
list_pages	List all open tabs	—
select_page	Switch to tab	index
wait_for	Wait for element/network	event, uid, timeout

Debugging (5 tools)

Tool	Description
take_screenshot	Capture page as image
take_snapshot	Get DOM/accessibility snapshot
evaluate_script	Run JavaScript in page
list_console_messages	Get console log entries
get_console_message	Get specific console message

Performance (3 tools)

Tool	Description
performance_start_trace	Begin performance recording
performance_stop_trace	Stop and get trace data
performance_analyze_insight	AI analysis of trace

Network (2 tools)

Tool	Description
list_network_requests	List all network requests
get_network_request	Get request/response details

Emulation (2 tools)

Tool	Description
emulate	Emulate device (mobile, tablet)
resize_page	Change viewport size

Common Workflows

Test a webpage

1. navigate_page → URL
2. take_snapshot → get element UIDs
3. click/fill → interact with elements
4. take_screenshot → capture result

Performance audit

1. navigate_page → URL
2. performance_start_trace
3. Interact with page
4. performance_stop_trace
5. performance_analyze_insight

Form testing

1. navigate_page → form URL
2. take_snapshot → identify form fields
3. fill_form → fill all fields at once
4. click → submit button
5. take_screenshot → verify result

Privacy Notes

• Google collects usage statistics by default — disable with --no-usage-statistics
• Performance tools may send trace URLs to Google CrUX API — disable with --no-performance-crux
• Avoid sharing sensitive data in browser sessions