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Chrome DevTools MCP server

by ChromeDevTools·io.github.ChromeDevTools/chrome-devtools-mcp·v1.9.0

MCP server for Chrome DevTools

B78/100grade B
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Safety scan
B78/100

full report

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Widely used

52k stars1.1M downloads/wk

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If you have run it, two minutes of your experience saves the next person an afternoon.

Chrome DevTools MCP tools (2, 1 write)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • execute_3p_developer_toolwrite action

    Executes a tool exposed by the page.

  • list_3p_developer_tools

    Lists all third-party developer tools the page exposes for providing runtime information. Third-party developer tools can be called via the 'execute_3p_developer_tool()' MCP tool. Alternatively, third-party developer tools can be executed by calling 'evaluate_script' and adding the following command to the script: `window.__dtmcp.executeTool(toolName, params)` This might be helpful when the third-

Public scan report

scanner v0.1.9 · 2026-09-20 · same rubric, same numbers if you re-run it

2 medium
  • Code scan78 source files scanned15/25
  • Live reliabilityno gateway calls yet and no remote to proben/a
  • Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitylocal package, no credentials required12/15
  • Maintenancelast push 0 days ago15/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year9/10

Findings (2)

  • mediumeval / new Function usedexec.eval
    build/src/third_party/devtools-formatter-worker.js: …is.e = e; this.f = f; } eval(val) { const sign = val < 0 ? -1…
  • mediumGoogle API key in source (often public by design; check its restrictions)secret.google
    build/src/tools/performance.js: …ogleapis.com/v1/records:queryRecord?key=AIza****'); const cruxSetting = DevTools.Com…
Overall 78/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

What the publisher says

From the Chrome DevTools MCP repository's README, as published. We do not edit it. Read it on GitHub

Chrome DevTools for agents

Chrome DevTools for agents (chrome-devtools-mcp) lets your coding agent (such as Antigravity, Claude, Cursor or Copilot) control and inspect a live Chrome browser. It acts as a Model-Context-Protocol (MCP) server, giving your AI coding assistant access to the full power of Chrome DevTools for reliable automation, in-depth debugging, and performance analysis. A [CLI][cli] is also provided for use without MCP.

[Tool reference][tool-reference] | [Changelog][changelog] | [Contributing][contributing] | [Troubleshooting][troubleshooting] | [Design Principles][design-principles]

Key features

DevTools](https://github.com/ChromeDevTools/devtools-frontend) to record traces and extract actionable performance insights.

  • Get performance insights: Uses [Chrome

check browser console messages (with source-mapped stack traces).

  • Advanced browser debugging: Analyze network requests, take screenshots and

puppeteer to automate actions in Chrome and automatically wait for action results.

  • Reliable automation. Uses

Disclaimers

chrome-devtools-mcp exposes content of the browser instance to the MCP clients allowing them to inspect, debug, and modify any data in the browser or DevTools. Avoid sharing sensitive or personal information that you don't want to share with MCP clients.

chrome-devtools-mcp officially supports Google Chrome and Chrome for Testing only. Other Chromium-based browsers may work, but this is not guaranteed, and you may encounter unexpected behavior. Use at your own discretion. We are committed to providing fixes and support for the latest version of Extended Stable Chrome.

Performance tools may send trace URLs to the Google CrUX API to fetch real-user experience data. This helps provide a holistic performance picture by presenting field data alongside lab data. This data is collected by the Chrome User Experience Report (CrUX). To disable this, run with the --no-performance-crux flag.

Usage statistics

Google collects usage statistics (such as tool invocation success rates, latency, and environment information) to improve the reliability and performance of Chrome DevTools MCP.

Data collection is enabled by default. You can opt-out by passing the --no-usage-statistics flag when starting the server:

"args": ["-y", "chrome-devtools-mcp@latest", "--no-usage-statistics"]

Google handles this data in accordance with the Google Privacy Policy.

Google's collection of usage statistics for Chrome DevTools MCP is independent from the Chrome browser's usage statistics. Opting out of Chrome metrics does not automatically opt you out of this tool, and vice-versa.

Collection is disabled if CHROMEDEVTOOLSMCPNOUSAGE_STATISTICS or CI env variables are set.

Update checks

By default, the server periodically checks the npm registry for updates and logs a notification when a newer version is available. You can disable these update checks by setting the CHROMEDEVTOOLSMCPNOUPDATE_CHECKS environment variable.

Requirements

  • Node.js LTS version.
  • Chrome current stable version or newer.
  • npm

Getting started

Add the following config to your MCP client:

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

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Install directly

Runs npx -y chrome-devtools-mcp on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add chrome-devtools-mcp -- npx -y chrome-devtools-mcp
Add to Cursor

Chrome DevTools MCP: common questions

Is Chrome DevTools MCP server safe?
Mostly: it is graded B (78/100). Read the Chrome DevTools MCP safety report
How do I install Chrome DevTools MCP?
It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.
Does Chrome DevTools MCP need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Chrome DevTools MCP maintained?
The last commit was in the last day (2026-09-20). The latest release is v1.9.0.

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