HN Search is run by Algolia so it would be their page. I thought they had some documentation there but at present all I can find is https://hn.algolia.com/settings, which isn't much. Can you say what you're trying to understand?

I’ve seen it a couple times, but have zero idea how it works (or what algolia is).

I was trying to understand how people were using it (presumably) to make cool things like the Who’s Hiring parsers.

I was hoping there was a “Hello World” for HN comment API, but sounds like I need to read the algolia docs.

Again, thanks for your time!