Details you only notice from far away
Everything the site counts is available as JSON: who writes how much about one event in different parts of the world, which topics coincided, what people suddenly started reading. No key, no sign-up.
curl "https://onthepluto.com/api/v1/stories?lang=en&limit=3"
The answer is an object with data (a list) and meta. GET only, UTF-8, callable from any site (CORS is open).
The stories of the last two days: one event and how many headlines each part of the world gave it.
What coincided in a section’s news: topics that meet more often than chance, described in plain words, with the news items they rest on.
Topics read on Wikipedia far more than usual right now.
A section’s topic graph: nodes and edges.
Search across topics, people, countries, stories and headlines.
The list of sections.