Marcus on AI API, RSS and sitemap
Every article Marcus on AI publishes, as JSON, through an open API with no key and no signup. 30 of their articles are indexed right now, refreshed hourly.
United StatesEnglish#17,183 by volume
Four ways to pull garymarcus.substack.com
All four are ours, all four are live, and none of them needs a key.
JSON Search this publisher
Every article we hold from garymarcus.substack.com, newest first. Add q= to search inside.
curl -s "https://freenewsapi.ai/v1/search?host=garymarcus.substack.com&size=20"open it →RSS Subscribe in any reader
The same articles as an RSS 2.0 feed. Works in Feedly, Inoreader, Thunderbird — anywhere.
curl -s "https://freenewsapi.ai/v1/rss?host=garymarcus.substack.com&size=50"open it →JSON Feed For apps
JSON Feed 1.1, the same content in a format apps parse natively.
curl -s "https://freenewsapi.ai/v1/feed.json?host=garymarcus.substack.com&size=50"open it →Trimmed For agents
Only the fields an agent needs — title, url, date, language — so the response stays small.
curl -s "https://freenewsapi.ai/v1/search?host=garymarcus.substack.com&size=20&fields=title,url,published_at,lang"open it →Call the API
A live request. Paste it into a terminal and Marcus on AI headlines come back as JSON.
curl "https://freenewsapi.ai/v1/search?host=garymarcus.substack.com&size=5"Publishing volume
Articles per day over the last 26 days. The busiest hour is 16:00 UTC — that is when the newsroom pushes its main batch.
curl "https://freenewsapi.ai/v1/stats?host=garymarcus.substack.com&top=10"Publishing rhythm
When Marcus on AI actually publishes, by hour of day (UTC) and by day of week — measured from 30 timestamps, not from a schedule they advertise.
Languages
The site identifies itself under Marcus on AI, Natural 20 — separate editions publishing under one domain.
| Code | Language | Articles | Share |
|---|---|---|---|
en | English | 30 | 100.0% |
Latest articles
The 18 most recent Marcus on AI articles in the index — the same rows the API returns, rendered for humans.
Harvest it all
Page through the archive by date. from and to accept
YYYY-MM-DD or relative values such as now-7d.
curl "https://freenewsapi.ai/v1/search?host=garymarcus.substack.com&from=now-7d&size=100"To poll for new material, keep the timestamp of the newest article you saw and ask only for what came after it:
curl "https://freenewsapi.ai/v1/search?host=garymarcus.substack.com&from=now-1h&sort=date_asc"Article bodies come with full_text=true. No key, no quota tier, no
header — see the search endpoint for every parameter.
Metadata quality
How well Marcus on AI marks up its own pages — useful if you are deciding whether to parse them yourself.
Crawl lag — the delay between publication and the article reaching this index — is 287 min at the median, 1858 minutes at the 90th percentile.
FAQ
Does Marcus on AI have an official API?
Not a public one. This endpoint is the practical alternative: their articles as structured JSON, with title, lead, publication time, section, byline and a link back to the original.
How do I get their RSS feed?
Most publishers expose one at /rss or /feed, but feeds carry
only the last few dozen items and drop them within hours. This index keeps 30 of
their articles and lets you filter by date, language and section.
How many articles does Marcus on AI publish per day?
1 on a median day, measured across 26 days.
Can I use this commercially?
The API is free and unauthenticated. What you may do with the content is between you and the publisher: we return metadata, a lead paragraph and a link, not a licence.
