# cloudPulsePoint Page Performance Check

> cloudPulsePoint Page Performance Check is a paid API for AI agents from x402.cloudpulsepoint.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-15).

Loads a full public web page and measures time-to-first-byte, total load time, and downloaded page size (capped at 5 MB).

## Facts

- Endpoint: POST https://x402.cloudpulsepoint.com/agent/check/perf
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cloudpulsepoint-page-performance-check-ebcd32bc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_O_v-FF1y5BkU_xQbWFjAo

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability cloudpulsepoint-page-performance-check-ebcd32bc -d '<json body>'
```

Example prompt: Can you measure the page load performance of https://example.com — I want to know the time-to-first-byte, total load time, and how much data gets downloaded?

## When to prefer this

Use this endpoint when you need quick, quantitative front-end performance metrics — specifically TTFB, total load time, and page weight — before making decisions about crawling, scraping, embedding, or depending on a web page. Prefer this over a simple reachability check (HTTP ping) when you need more than a status code, and over full synthetic monitoring suites when you just need a fast, single-call benchmark without browser-rendered JavaScript execution metrics.

## Known failure modes

- Private, loopback, link-local, or cloud-metadata IP targets are rejected with HTTP 400 before payment is charged
- Unreachable or offline URLs will result in a timeout or connection error response
- URLs exceeding the 5 MB download cap will be truncated at that limit
- Malformed or non-HTTP(S) URLs are rejected with HTTP 400
- DNS resolution failures for the target host result in an error response

## How this service works

Load the full page and measure time-to-first-byte, total load time, and downloaded size (capped at 5 MB). Use to gauge front-end performance before crawling, embedding, or depending on a page.

## Output

Returns time-to-first-byte (ms), total page load time (ms), and total downloaded size in bytes (capped at 5 MB) for the specified public URL. Provides a quick snapshot of front-end delivery speed and page weight.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "description": "Full http(s) URL of the site to check, e.g. \"https://example.com\". Must resolve to a public address — private, loopback, link-local, and cloud-metadata targets are rejected with HTTP 400 before any payment."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cloudpulsepoint-page-performance-check-ebcd32bc/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.cloudpulsepoint.com](https://www.zero.xyz/host/x402.cloudpulsepoint.com/llms.txt)