io.github.corewebvitals/state-of-cwv

up checked 2026-11-11T10:39:10.114Z

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Publisher-provided title

State of Web Vitals

Publisher-provided description

Core Web Vitals metrics by CMS, CDN, and framework — free remote MCP, no auth.

Summary by lookupd

Query aggregated Core Web Vitals metrics and histograms by CMS, CDN, or framework; remote server, no authentication required.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http state-of-cwv https://www.corewebvitals.io/api/state-of-cwv/mcp

Codex, remote (streamable-http)

codex mcp add state-of-cwv --url https://www.corewebvitals.io/api/state-of-cwv/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "state-of-cwv": {
      "url": "https://www.corewebvitals.io/api/state-of-cwv/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (3 tools)

Publisher-provided text

• get_metrics What are the numbers? Aggregate Core Web Vitals and/or technique metrics across sites, with optional filter and group_by. Responses include attribution — credit
• get_histogram What 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
• list_options Discover what you can pass to get_metrics / get_histogram: filter keys, group_by values, built-in metrics, and contract metric paths (optional kind filter). Cal

Details

• Version: 1.0.1
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 825 ms
• First indexed: 2026-11-01T09:25:24.362Z
• Last seen in registry: 2026-11-01T09:25:24.372Z
• Repository: https://github.com/corewebvitals/state-of-cwv-mcp
• Website: https://www.corewebvitals.io/state-of-cwv

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