Pagespeed Insights MCP

Unclaimed

by ruslanlap

Turn Claude, Cursor, and Codex into web performance experts. A 16-tool MCP server for PageSpeed Insights, Lighthouse, CrUX, Core Web Vitals, audits, diagnostics, and optimization.

Install

$npx pagespeed-insights-mcp

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Tools (27)

analyze_page_speed

Full Lighthouse analysis — all metrics and audits

batch_analyze

Analyze up to 10 URLs in parallel with progress tracking

clear_cache

Clear internal cache to force fresh API requests

compare_pages

Side-by-side performance comparison between two URLs

crux_summary

Real-world Core Web Vitals from Chrome UX Report (field data)

formFactor

"PHONE", "DESKTOP", or "TABLET" (default: "PHONE")

full_report

Unified report combining Lighthouse lab data with CrUX field data

get_element_analysis

LCP/CLS DOM elements causing performance issues

get_full_audit

Complete Lighthouse audit for all categories

get_image_optimization_details

Images needing optimization with exact savings

get_javascript_analysis

JS bootup time, main-thread work, unused & duplicated modules

get_network_analysis

Network waterfall — all requests with timing and size

get_origin_crux

Domain-level (origin) Chrome UX Report field data across all pages

get_performance_map

Mermaid flowchart visualizing performance score, Core Web Vitals status, and top opportunities

get_performance_summary

Simplified key-metrics report

get_recommendations

Prioritized recommendations with actionable fixes

get_render_blocking_details

Render-blocking resources and critical request chains

get_third_party_impact

Third-party script impact grouped by provider

get_visual_analysis

Screenshots, filmstrip, and full-page captures

locale

locale for results (default: "en")

strategy

"mobile" or "desktop" (default: "mobile")

url

(required): URL of the page to analyze

urlA

(required): First URL to compare

urlB

(required): Second URL to compare

urls

(required): Array of URLs to analyze (max 10)