Skill: Feed watch

Bundled execution of the Feed watch workflow — 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. One x402 payment runs 4 underlying tools (feed-parse, extract, keywords, text-diff); partial-success per step.

Input

Example output

{
  "pack": "feed-watch",
  "args": {
    "url": "https://hnrss.org/frontpage",
    "previous": "PREVIOUS_SNAPSHOT"
  },
  "steps": [
    {
      "slug": "feed-parse",
      "ok": true,
      "result": {}
    },
    {
      "slug": "extract",
      "ok": true,
      "result": {}
    },
    {
      "slug": "keywords",
      "ok": true,
      "result": {}
    },
    {
      "slug": "text-diff",
      "ok": true,
      "result": {}
    }
  ],
  "summary": "4/4 steps succeeded"
}

Try it — see the 402 challenge (free)

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

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/skill/feed-watch", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "url": "https://hnrss.org/frontpage",
    "previous": "PREVIOUS_SNAPSHOT"
  }),
});

Related tools