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Cerwal Feed Finder
x402
Cerwal Feed Finder is a paid API for AI agents from cerwal.vercel.app, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-14).
Discovers and returns RSS/Atom feed URLs found at a given web page URL
Price / call$0.15
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 discovered feed URLs and associated metadata found at the provided webpage URL.
Example use cases
Blog feed discovery for newsletter tool
“Find all the RSS or Atom feeds available at https://simonwillison.net so I can pull in their latest posts automatically.”
Podcast feed URL lookup
“Can you find the podcast feed URL on https://www.relay.fm/connected so I can add it to my podcast app?”
News site syndication check
“Check https://www.bbc.com/news and tell me what feed URLs are available — I want to monitor their headlines.”
Technical details
Endpoint
POSThttps://cerwal.vercel.app/api/feedWhen to prefer
Use this endpoint when you need to discover RSS, Atom, or other syndication feeds available at a specific URL without managing authentication or subscriptions. It is ideal for AI agents that need lightweight, pay-per-use feed discovery with no setup overhead, especially when integrating content monitoring pipelines or letting users subscribe to web content programmatically.
Side effects
- URL is unreachable or returns a non-200 status — success may be false or data empty
- Page has no discoverable feeds — returns success true but empty feed list
- Invalid or malformed URL input — likely returns an error or failed response
- Rate limiting or network timeout on the target page — may result in partial or failed response
- Payment not included or rejected via x402 — request blocked before processing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| urlrequired | string | URL to find feeds on |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| data | object | |
| success | boolean |
Tags
x402
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