I don't think it has auth, You can still use the API, you can hit https://hacker-news.firebaseio.com/v0/topstories.json https://hacker-news.firebaseio.com/v0/

I don't think it has auth, You can still use the API, you can hit https://hacker-news.firebaseio.com/v0/topstories.json https://hacker-news.firebaseio.com/v0/topstories.json to get the ids of all top stories and then hit em individually to get information about it.