AgentIndex icon
AgentIndex
chrome-devtools-mcp logo
chrome-devtools-mcp
★ 54.0k
vs
substack-mcp-plus logo
substack-mcp-plus
★ 25

chrome-devtools-mcp vs substack-mcp-plus

chrome-devtools-mcp: chrome-devtools-mcp enables AI coding assistants like Gemini, Claude, and Copilot to interact with a live Chrome browser via the Model-Context-Protocol (MCP). It grants AI full access to Chrome DevTools for reliable automation, deep debugging, and detailed performance insights.; substack-mcp-plus: Substack MCP Plus is a powerful MCP server that enables users to create, edit, and publish Substack posts directly from Claude Desktop or any MCP-compatible client. It offers seamless authentication, full rich text formatting, and lightning-fast publishing capabilities. With 12 integrated tools, it streamlines the entire content creation workflow.

01

TL;DR

chrome-devtools-mcp logo
chrome-devtools-mcpBrowser Automation · ★ 54.0k
When to choose:
  • You want an agent to record a Chrome performance trace and get insights from it; the README lists performance_start_trace, performance_stop_trace and performance_analyze_insight.
  • You need to inspect network requests, console messages and screenshots of a page while debugging it.
  • You want the agent to attach to a Chrome you already have running, using --browser-url, --ws-endpoint or --autoConnect (Chrome 144+).
When to skip:
  • You need Firefox or Safari: the project is built on Chrome DevTools and targets Chrome.
  • You want a general-purpose automation or test runner across browsers; Playwright MCP is the closer fit.
  • You cannot run Node.js 20.19 or newer, which the README lists as a requirement.
Read chrome-devtools-mcp full review →
substack-mcp-plus logo
substack-mcp-plusBrowser Automation · ★ 25

Create and publish blog posts with rich formatting

Read substack-mcp-plus full review →
02

Side-by-Side Comparison

Field
chrome-devtools-mcp logochrome-devtools-mcp
substack-mcp-plus logosubstack-mcp-plus
Category
Browser Automation
Browser Automation
Stars
★ 54.0k
★ 25
License
Apache-2.0
MIT
Install Command
npx -y chrome-devtools-mcp@latest
npm install -g substack-mcp-plus
Updated
1d ago
5mo ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
Chrome DevTools, AI Assistant, Browser Automation
ai-tools, automation, claude
03

Features

chrome-devtools-mcp logochrome-devtools-mcp
01Get performance insights using Chrome DevTools
02Advanced browser debugging (network, screenshots, console)
03Reliable automation using Puppeteer
04Input automation (click, drag, fill, etc.)
05Navigation automation (new page, navigate, wait for, etc.)
substack-mcp-plus logosubstack-mcp-plus
01Browser-based authentication with CAPTCHA support
02Full rich text formatting (headers, bold, italic, lists, code blocks, images)
03Lightning-fast publishing (draft in 30 seconds, publish in 2-3 minutes)
0412 integrated tools for content management
05Paywall markers for free/premium content
04

Use Cases

chrome-devtools-mcp logochrome-devtools-mcp
↳Automating browser interactions for testing or data extraction
↳Debugging web applications by analyzing network requests and console messages
↳Analyzing website performance by recording traces and extracting insights
substack-mcp-plus logosubstack-mcp-plus
↳Create and publish blog posts with rich formatting
↳Manage drafts, update content, and schedule publishing
↳Upload images, generate preview links, and track subscriber count
05

Best For

chrome-devtools-mcp logochrome-devtools-mcp
Most PopularEssentialTrending
substack-mcp-plus logosubstack-mcp-plus
—
FAQ

FAQ

What is the difference between chrome-devtools-mcp and substack-mcp-plus?
Both chrome-devtools-mcp and substack-mcp-plus are in the Browser Automation category. chrome-devtools-mcp has 54.0k stars, while substack-mcp-plus has 25 stars.
Which is better, chrome-devtools-mcp or substack-mcp-plus?
The best choice depends on your use case. Choose chrome-devtools-mcp if Automating browser interactions for testing or data extraction, and substack-mcp-plus if Create and publish blog posts with rich formatting.
Is chrome-devtools-mcp free or open source?
Yes, chrome-devtools-mcp is open source on GitHub (Apache-2.0).
Is substack-mcp-plus free or open source?
Yes, substack-mcp-plus is open source on GitHub (MIT).
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