# Web Page Summarizer (cr4vvol)

> Web Page Summarizer (cr4vvol) is a paid API for AI agents from cr4vvol.vercel.app, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Fetches and summarizes the content of a given URL, returning a concise text summary with optional length control.

## Facts

- Endpoint: POST https://cr4vvol.vercel.app/api/summarize
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/web-page-summarizer-cr4vvol-e15fbff8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lAFgg7DQcUIx__xINrcm2

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 web-page-summarizer-cr4vvol-e15fbff8 -d '<json body>'
```

Example prompt: Can you summarize the content at https://techcrunch.com/2024/05/01/openai-gpt5-release/ and keep the summary under 300 words?

## When to prefer this

Choose this endpoint when you need a quick, pay-per-use web page summary without setting up API keys or subscriptions. It is ideal for AI agents that need to digest external URLs on demand, paying $0.05 USDC per call via x402. Prefer alternatives if you need full structured data extraction, recursive site crawling, or search query support rather than single-URL summarization.

## Known failure modes

- URL is unreachable or returns non-200 status — likely returns success: false
- URL points to non-text content (e.g. PDF, image) — may return empty or malformed summary
- Payment not completed via x402 — request blocked with 402 Payment Required
- maxLength too small to produce a meaningful summary — may return truncated or empty text
- URL is malformed or missing — likely returns a validation error

## How this service works

Web scraping and search for AI agents. No auth, no subscriptions. Pay per request in USDC via x402.

## Output

Returns a JSON object with a 'success' boolean and a 'data' object containing the summarized content of the requested URL.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "url"
 ],
 "properties": {
  "url": {
   "type": "string",
   "description": "URL to summarize"
  },
  "maxLength": {
   "type": "number",
   "description": "Max summary length"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "data": {
   "type": "object"
  },
  "success": {
   "type": "boolean"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/web-page-summarizer-cr4vvol-e15fbff8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cr4vvol.vercel.app](https://www.zero.xyz/host/cr4vvol.vercel.app/llms.txt)