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MCP server · Developer Tools

Devtools MCP

by · github.com/stefanli/devtools-mcp

A MCP server that provides Chrome DevTools Protocol access to LLMs

Unclaimed last commit a year ago devtools
InstallView source
46Fair

Scored 5 months ago · breakdown

About Devtools MCP

Devtools MCP is an MCP server published by stefanli in the Developer Tools category: a MCP server that provides Chrome DevTools Protocol access to LLMs.

The repository has 28 stars and 9 forks, with the last commit a year ago. Six months or more without a commit doesn't mean the server is broken, but check the open issues before depending on it in production.

Install

From source
git clone https://github.com/stefanli/devtools-mcp

This server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.

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Security checks

Static checks derived from the repository 7 days ago. Heuristics on the source, not an audit.

  • ✓README presentThe repository ships documentation.
  • !License declaredNo license file. Legally you have no right to use it in a product.
  • !Tests presentNo tests found. Behaviour changes may go unnoticed between versions.
  • ✓Dependencies pinnedA lockfile pins dependency versions.
  • ✓No dynamic code executionSource scan found no eval, dynamic Function, or shell execution.
  • !Scoped permissionsDoesn't declare a permission scope. Assume it can do anything its process can.

README

devtools-mcp

A MCP server that provides Chrome DevTools Protocol access to LLMs.

  • Execute any CDP command through the cdp_command tool
  • Automatic binary data handling - large responses (screenshots, PDFs) are saved to files

Setup

  1. Start Chrome with remote debugging:
/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome \
  --remote-debugging-port=9222 \
  --remote-debugging-address=127.0.0.1 \
  --user-data-dir=/tmp/chrome-debug \
  --no-first-run \
  --disable-default-apps
  1. Install dependencies:
npm install
  1. Add as local MCP server. E.g. with Claude Code:
claude mcp add devtools-server -- npx tsx ~/projects/devtools-mcp/src/index.ts

Usage

The server exposes a single cdp_command tool that accepts:

  • method: Any CDP command (e.g., "Page.navigate", "Runtime.evaluate")
  • params: JSON string of command parameters (optional)

Binary data (screenshots, etc.) is automatically saved to ./cdp-output/ with file path references returned instead of raw data.

README fetched from the repository 7 days ago. The original is authoritative.

Questions

About Devtools MCP

How do I install Devtools MCP?

No package has been published for this server, so install it from source: clone the repository and follow its README.

Is Devtools MCP safe to use with an AI agent?

Its trust score is 46 out of 100 (fair). It passes 3 of the 6 static security checks run so far; the failures are listed above. It has no ConduID identity yet, so agent calls to it are not receipted.

Is Devtools MCP still maintained?

The last commit was a year ago and 2 open issues. That's long enough that you should check whether the maintainer is responding to issues before depending on it.