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answering

Pulse is answering right now. Last checked 10 min ago. It exposes 1 tools.

Core Web Vitals (LCP, INP, CLS) per URL from the Chrome UX Report, with daily checks on Pro.

Uptime history 6 days of history
6 days agonow
100.0%
Uptime 24h
91 of 91 checks
1
Tools
read from the server
148 ms
Response time
average over 24h
open, no key
Access
streamable-http

Nothing serious here today

Today is the operative word: we check Pulse every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 10 min ago.

run in your terminal
claude mcp add pulse --transport http https://pulse.allthepossibles.com/mcp
Settings → Connectors → Add custom connector, then paste this address
https://pulse.allthepossibles.com/mcp
~/.codex/config.toml
[mcp_servers.pulse]
url = "https://pulse.allthepossibles.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "pulse": {
      "url": "https://pulse.allthepossibles.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "pulse": {
      "type": "http",
      "url": "https://pulse.allthepossibles.com/mcp"
    }
  }
}

Available tools 1

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

vitals
check_vitals
Check a page's real Core Web Vitals: Google's Chrome UX Report field data (real users, 28-day window) plus a live Lighthouse lab run. Returns good/needs-improvement/poor ratings for LCP, INP, and CLS per Google's own published thresholds, and whether the page passes the actual ranking-signal bar. Call this before telling someone a page performs well. Pass a Pro API key as a Bearer token for 500 checks/minute; see /docs for monitoring multiple URLs with daily regression alerts.

Endpoints

URLTransportStateLatencyChecked
https://pulse.allthepossibles.com/mcp streamable-http answering 130 ms 10 min ago

Alternatives to Pulse

same job, measured the same way
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Printwren: web page or HTML to PDF with real Chrome; pages, base64 or download link. Free, no key.

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by workers-cybermax-tools-cybermax

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2 tools answering

Pulse — questions

Answers built from our own checks of this server.

What can Pulse do?
It exposes 1 tools, read directly from the server on our last check. Among them: check_vitals. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Pulse working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 148 ms. The bar chart above shows every period we have measured.
How do I connect Pulse?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Pulse need an API key?
No. Pulse completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 1 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Pulse?
It answers our handshake in 148 ms on average, which is faster than 89% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.