Bluesky vs HackerNews

Bluesky is the decentralized social network built on the AT Protocol, where posts, follows, and identity live on portable Personal Data Servers instead of one company's database. Its public AppView at public.api.bsky.app exposes keyless, read-only XRPC methods such as app.bsky.actor.getProfile and app.bsky.feed.getAuthorFeed, so any client can pull public profiles and feeds without registering an app. Posting, following, or reading a signed-in user's private data instead requires an authenticated session against a Personal Data Server via an app password or OAuth, not a single global API key.

The official Hacker News API is a read-only Firebase-backed REST feed publishing items (stories, comments, jobs, polls) and user profiles as simple JSON, with helper endpoints for the current top/new/best/ask/show/job story ID lists. It requires no API key or registration, updates roughly every 30 seconds to reflect live site activity, and has stayed structurally unchanged since Y Combinator open-sourced it in 2015.