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Cerwal URL Summarize
x402
Cerwal URL Summarize is a paid API for AI agents from cerwal.vercel.app, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-14).
Fetches and summarizes the content of a given URL, returning a condensed text summary, paid per request via USDC x402
Price / call$0.25
Success—
StatusUnknown
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 target URL, optionally constrained to a specified maximum length.
Example use cases
Research article digest
“Summarize the content at https://www.nature.com/articles/s41586-024-07734-5 in no more than 200 words so I can quickly understand what the study found.”
Competitor page overview
“Can you pull a summary of what's on https://www.anthropic.com/news/claude-3-5-sonnet — just give me the highlights in under 150 words.”
News story quick read
“I don't have time to read the full article — can you summarize https://www.bbc.com/news/articles/c9dl7l8gpndo for me and keep it brief?”
Technical details
Endpoint
POSThttps://cerwal.vercel.app/api/summarizeWhen to prefer
Choose this endpoint when you need a fast, pay-per-use web page summary without setting up API keys or subscriptions. It is ideal for AI agents that need to digest arbitrary URLs on demand, especially in workflows where summarization is an occasional step rather than a bulk operation. Prefer it over full-crawl solutions when you only need condensed content from a single URL at a time.
Side effects
- URL is unreachable or returns a non-200 HTTP status — success: false with error detail
- URL points to a PDF or non-HTML content that cannot be parsed — partial or empty summary
- maxLength set too low to produce a meaningful summary — truncated or malformed output
- Payment not completed via x402 — request blocked before processing
- URL is behind a login wall — content not accessible, empty or error response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| urlrequired | string | URL to summarize |
| maxLength | number | Max summary length |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| data | object | |
| success | boolean |
Tags
x402
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