RSS/Atom feed parser

Fetch an RSS 2.0, Atom, or RSS 1.0 feed URL and parse it into normalized JSON: feed title/description/link plus items (title, link, id, published, author, plain-text summary, categories). Deterministic pure-XML parse with a lenient recovery pass for common malformations (reported in a warnings array). Item count is bounded (default 20, max 50). SSRF-guarded.

Input

Example output

{
  "url": "https://hnrss.org/frontpage",
  "format": "rss2",
  "title": "Hacker News: Front Page",
  "description": "Hacker News RSS",
  "link": "https://news.ycombinator.com/",
  "updated": null,
  "itemCount": 30,
  "items": [
    {
      "title": "Show HN: …",
      "link": "https://example.com/post",
      "id": "https://news.ycombinator.com/item?id=1",
      "published": "Mon, 13 Jul 2026 12:00:00 +0000",
      "author": "someone",
      "summary": "Article summary…",
      "categories": []
    }
  ],
  "warnings": []
}

Try it — see the 402 challenge (free)

curl -i -X POST https://agent402.tools/api/feed-parse \
  -H "Content-Type: application/json" \
  -d '{"url":"https://hnrss.org/frontpage","limit":5}'

The response is HTTP 402 Payment Required with exact payment requirements. Any x402 v2 client pays automatically and retries:

Paid call (JavaScript agent)

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client();
registerExactEvmScheme(client, { signer: privateKeyToAccount(KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://agent402.tools/api/feed-parse", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "url": "https://hnrss.org/frontpage",
    "limit": 5
  }),
});

Part of these workflows

This tool is one step in a curated multi-tool workflow — agents can fetch the whole sequence as an MCP prompt or call https://agent402.tools/api/skill-packs/{slug}/prompt.

• Feed watch — Monitor an RSS/Atom feed in one call: parse the feed, read the top story in full, extract the keywords driving the cycle, and diff the item list against your last run to isolate what's new.

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