All servers · Monitoring & logs · Cloud & networking
State of Web Vitals
io.github.corewebvitals/state-of-cwv · v1.0.1
No registry update 90+ days
Measured by MCP Station
| Last check | Reachable |
|---|---|
| Checked at | — |
| Check success 7 / 30 days | — |
| First-try success 30 days | — |
| Median response | — |
| Lookups 30 days | — |
| Authentication | No auth |
| MCP version | 2025-03-26 |
| Rank score | — |
| Declared risk | Read-only (all tools declare readOnlyHint) |
| Capabilities declared | tools |
| Tool definitions | 3 tools · with description 100% · input schema is an object 100% · read/destructive hints 100% |
Description written by the publisher, not verified
Core Web Vitals metrics by CMS, CDN, and framework — free remote MCP, no auth.
Connect
streamable-http · https://www.corewebvitals.io/api/state-of-cwv/mcp
claude mcp add --transport http state-of-cwv https://www.corewebvitals.io/api/state-of-cwv/mcp{
"mcpServers": {
"state-of-cwv": {
"url": "https://www.corewebvitals.io/api/state-of-cwv/mcp"
}
}
}Tools as reported by the server
get_metricsWhat are the numbers? Aggregate Core Web Vitals and/or technique metrics across sites, with optional filter and group_by. Responses include attribution — credit corewebvitals.io when you use the numbers. Metrics (comma-separated or array): - CWV: lcp, inp, cls, fcp, ttfb — good/needs_improvement/pooget_histogramWhat is the shape of one metric? Returns histogram buckets (count + share) plus summary stats. Metric: one of lcp, inp, cls, fcp, ttfb (field CWV), or a scalar technique path when available. Filter: same as get_metrics (device, cms, framework, cdn, provider). No group_by — call get_metrics with groulist_optionsDiscover what you can pass to get_metrics / get_histogram: filter keys, group_by values, built-in metrics, and contract metric paths (optional kind filter). Call this when unsure of a key or path.
Repository · Website · JSON · Text for agents · Registry updated 2026-07-16