# RSS/Atom/XML Feed Change Tracker

> RSS/Atom/XML Feed Change Tracker is a paid API for AI agents from 9dmb38pvlp8dr1d3rtfjpe934o.ingress.h4i-dedicated.eu-sw-2.digitalfrontier.so, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Fetches a public RSS, Atom, or XML feed and returns normalized additions and removals since the last check.

## Facts

- Endpoint: POST https://9dmb38pvlp8dr1d3rtfjpe934o.ingress.h4i-dedicated.eu-sw-2.digitalfrontier.so/api/seller/v4/public-data/feed-change
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/rss-atom-xml-feed-change-tracker-2f68bc7a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MlQ96MxImEckcMd7AXF17

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 rss-atom-xml-feed-change-tracker-2f68bc7a -d '<json body>'
```

Example prompt: Check this RSS feed for any new or removed items since last time: https://example.com/feed.xml — give me a normalized list of what was added and what disappeared.

## When to prefer this

Choose this endpoint when you need to diff a public RSS, Atom, or XML feed to surface exactly which items were added or removed, with normalized output. It is distinct from general webpage change detection (which handles arbitrary HTML) and JSON/CSV dataset tracking (which handles structured data tables). Prefer this when your target is a syndication feed format specifically.

## Known failure modes

- Feed URL is unreachable or returns a non-200 HTTP status
- URL does not point to a valid RSS, Atom, or XML feed — returns a parse error
- Feed requires authentication and is not publicly accessible
- Feed returns malformed or non-standard XML that cannot be normalized
- Rate limiting or network timeouts from the feed host

## How this service works

Track public RSS, Atom or XML feed content and report normalized additions and removals.

## Output

A normalized report of feed entry additions and removals, including item identifiers, titles, publication dates, and links for each changed entry, structured to clearly distinguish new items from deleted ones.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/rss-atom-xml-feed-change-tracker-2f68bc7a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 9dmb38pvlp8dr1d3rtfjpe934o.ingress.h4i-dedicated.eu-sw-2.digitalfrontier.so](https://www.zero.xyz/host/9dmb38pvlp8dr1d3rtfjpe934o.ingress.h4i-dedicated.eu-sw-2.digitalfrontier.so/llms.txt)