By variation I mean HN is based on <a href="http:&#x2F;&#x2F;arclanguage.org&#x2F;install" rel="nofollow">http:&#x2F;&#x2F;arclanguage.org&#x2F;install</a> ... I don&#x27;t know how much the code bases have diverged.<p>They do have an API: <a href="http:&#x2F;&#x2F;blog.ycombinator.com&#x2F;hacker-news-api" rel="nofollow">http:&#x2F;&#x2F;blog.ycombinator.com&#x2F;hacker-news-api</a>