browser-tools-mcp/README.md

BrowserTools MCP (Fork)

This fork of BrowserTools MCP extends the original browser monitoring toolset with Lighthouse-powered accessibility, performance, and SEO audits, leveraging Puppeteer for headless browser control.

Key Additions

• Accessibility Audits: WCAG-compliant checks using Lighthouse.
• Performance Audits: Analyze page load and runtime efficiency.
• SEO Audits: Assess on-page SEO factors and suggest improvements.
• Puppeteer Integration: Enables reliable, headless browser audits.

Using Audit Tools

The MCP server provides tools to run audits on the current page. Here are example queries you can use to trigger them:

• Accessibility Audit (runAccessibilityAudit):
  • "Are there any accessibility issues on this page?"
  • "Run an accessibility audit."
  • "Check if this page meets WCAG standards."
• Performance Audit (runPerformanceAudit):
  • "Why is this page loading so slowly?"
  • "Check the performance of this page."
  • "Run a performance audit."
• SEO Audit (runSEOAudit):
  • "How can I improve SEO for this page?"
  • "Run an SEO audit."
  • "Check SEO on this page."

Quick Start

• Follow the Browser Tools installation guide
• To try the new tools, make sure to stand in the current tab (that you want to scan) with the Browser tools extension active