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nostr.halowerk.com RSS-to-Nostr Converter
x402
nostr.halowerk.com RSS-to-Nostr Converter is a paid API for AI agents from nostr.halowerk.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).
Fetches an RSS/Atom/RDF feed from a URL and converts each entry into a signed NIP-01 Nostr event (kind 1 short note or kind 30023 long-form article).
Price / call$0.002
Success—
StatusUnknown
How this service works
Fetches the feed over https with redirect and size limits, recognises RSS 2.0, RDF and Atom, and converts each entry into a NIP-01 event. Kind 1 produces a short note built from title, optional shortened summary and the link; kind 30023 produces a long-form article carrying the full entry text plus the title, published_at and d tags that NIP-23 expects.
Output
Returns one or more NIP-01 compatible Nostr event objects. Kind 1 events contain a short note body assembled from the feed entry's title, an optional shortened summary, and the item link. Kind 30023 events carry the full entry text as content, plus NIP-23 required tags: title, published_at, and a d tag derived from the entry identifier.
Example use cases
Blog syndication to Nostr
“I have a WordPress blog with an RSS feed at https://example.com/rss — can you convert each post into a kind 30023 long-form Nostr article, including the full text, title, and published date?”
News headlines as short Nostr notes
“Grab the Atom feed from https://news.ycombinator.com/rss and turn each item into a kind 1 short Nostr note with the title and link.”
Podcast episode cross-posting
“My podcast's RSS feed is at https://mypodcast.com/feed.rss — convert every new episode entry into a kind 1 Nostr note with the episode title and a link so my followers on Nostr can see new releases.”
Technical details
Endpoint
POSThttps://nostr.halowerk.com/rss-to-nostrWhen to prefer
Use this endpoint when you need to bridge existing RSS, RDF, or Atom feed content into the Nostr protocol without building a custom parser. It is the right choice when you want NIP-01 compliant events ready to sign and broadcast, especially when you need NIP-23 long-form article structure (kind 30023) with proper tags, or simple kind 1 notes for short-form syndication. Prefer this over generic feed parsers when the target output must be Nostr-native event JSON.
Side effects
- Feed URL unreachable or returns non-2xx HTTP status — fetch error returned
- Feed exceeds size limit — truncation or rejection error
- Unrecognized feed format (not RSS 2.0, RDF, or Atom) — parse failure
- Redirect loop or too many redirects — fetch aborted
- Empty feed with no entries — empty event list returned
- Malformed XML in feed — parse error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| kind | integer | 1 for short notes, 30023 for NIP-23 long-form articles. |
| limit | integer | How many of the newest entries to convert. |
| pubkey | string | Public key as hex or npub of the account that will sign. Given, every event carries its computed id. |
| feed_url | string | https address of the RSS or Atom feed. |
| since_unix | integer | Only convert entries published at or after this Unix timestamp. Entries without a date are kept. |
| include_summary | boolean | Include the entry summary in a kind 1 note. Ignored for kind 30023. |
| summary_max_chars | integer | Maximum summary length in a kind 1 note before it is cut at a word boundary. |
Tags
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