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PageSpeed Insights API – Lighthouse Performance Audit
x402
PageSpeed Insights API – Lighthouse Performance Audit is a paid API for AI agents from seo.openverbs.com, paid per call via x402, $0.006/call, status unknown (last checked 2026-10-11).
Runs a Google PageSpeed Insights (Lighthouse) audit on a given URL for mobile or desktop, returning a performance score plus Core Web Vitals (LCP, FCP, CLS, TBT, Speed Index, TTI) and real-user CrUX field data.
Price / call$0.006
Success—
StatusUnknown
How this service works
Page speed API - Google PageSpeed Insights (Lighthouse) performance audit for a URL on mobile or desktop. Returns the performance score plus lab Core Web Vitals (LCP, FCP, CLS, TBT, Speed Index, TTI) and, where available, real-user (CrUX) field data. Data source: Google PageSpeed Insights.
Output
Returns a performance score (0–100) and lab-measured Core Web Vitals including Largest Contentful Paint (LCP), First Contentful Paint (FCP), Cumulative Layout Shift (CLS), Total Blocking Time (TBT), Speed Index, and Time to Interactive (TTI). Where available, also includes real-user CrUX field data reflecting actual Chrome user experiences.
Example use cases
Pre-launch landing page audit
“Before we push this landing page live, can you run a Lighthouse performance audit on https://staging.mystore.com/sale for mobile and tell me the score plus any Core Web Vitals I should be worried about?”
Desktop vs mobile speed comparison
“Can you check the PageSpeed scores for https://www.myblog.com on both mobile and desktop so I can see where the biggest performance gap is?”
SEO client site benchmarking
“I need the Google PageSpeed Insights performance score and Core Web Vitals — LCP, CLS, FCP — for https://www.clientsite.com on mobile for a report I'm putting together.”
Technical details
Endpoint
POSThttps://seo.openverbs.com/v1/pagespeed?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need Google PageSpeed Insights / Lighthouse performance metrics for a specific URL, especially Core Web Vitals (LCP, FCP, CLS) for SEO or performance monitoring purposes. It wraps the Google PageSpeed Insights API with a simple x402 micropayment interface, making it ideal for agents that need programmatic, per-call access to Lighthouse audits without managing Google API keys.
Side effects
- Invalid or unreachable URL returns an error with no audit data
- Private or localhost URLs cannot be audited by Google PageSpeed
- Rate limiting may occur if the same URL is audited too frequently
- Pages requiring authentication or behind paywalls may return incomplete results
- Transient Google API errors may cause occasional failures
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | Absolute http(s) URL to analyse. |
| strategy | string | Device profile. Defaults to mobile. |
Tags
x402
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