NOTE This post is part of a series about the Halo Infinite Web API. You can read more about how I started in the first post, where I talk about the process of figuring out the data endpoints, as well as more about the authentication process. You can also explore the .NET wrapper for the API that makes endpoint interaction a bit easier. If you’ve been following my blog, you know that I’ve been fiddling quite a bit with the Halo Infinite API.

I like reading papers on arXiv, but I like discovering them more through Andrej Karpathy’s arxiv-sanity-lite. The little challenge with the latter is that there is no way to get those papers in a RSS feed, that I can then hook up to an RSS reader, like feedly or NetNewsWire if you’re on a MacOS machine. So, as a starting step, I thought I’d try and fix this with an open-source project, called arxiv-sanity-feeds.

Back in January I mentioned that I managed to continue the tradition of beating Halo on Legendary with the release of Infinite. At the end of that post I also mentioned that I was contemplating whether I want to do a Legendary, All Skulls On (also known as LASO) playthrough. Well, it so happened that I managed to get through this part of the experience as well this past weekend.

After four months of waiting, I finally got my hands on a Steam Deck! I am particularly excited to get to use this device a bit more because it's basically the cleanest version of "Gaming on Linux" that you can imagine.

We need to talk about Windows priorities as a product. And I am saying this as someone who wants Windows to succeed - it's a great OS that, despite it's naysayers, is still one of the best when it comes to backwards compatibility and richness of functionality. I mean, I can literally run a game written for Windows 95 on Windows 11 without major issues.

One of the things that I am diving much deeper (pun intended) into lately is deep learning. And with deep learning, one of the things that can help you the most when it comes to having the right hardware locally is a beefy Graphics Processing Unit (GPU). As it turns out, offloading tasks that involve matrix multiplication to the GPU yield massive performance benefits compared to doing the same thing on the Central Processing Unit (CPU).

Now that I got authentication out of the way, it's time that we actually get something useful done with the Halo Infinite API. This whole saga started with me wanting to get the match stats so that I can analyze them outside the game, and that's what I thought I'd tackle first.

A week ago I was finally able to figure out what endpoints the Halo Infinite Web API uses. Now, the challenge became figuring out how to properly request the data from those, as there were two component pieces to every request - a Spartan token, and a clearance. After fiddling with the API a bit, and looking at the endpoint that aggregates all other endpoints, I was able to learn that there is a straightforward way to get all the right tokens through a number of chained requests, that are documented in this blog post.

As with most of my reverse engineering stories, this one starts with "Hmm... I wonder if I can get this data anyway?" I mentioned this in my previous blog post that I just finished the Halo Infinite campaign, and the next step was multiplayer, which also meant that I wanted to keep track of my stats to see just how bad I am playing against real people and aimbots.

What better way to spend the couple of remaining vacation days than by diving into the new Halo campaign. Ever since I got an Xbox, Halo was a staple of my gaming collection. The first Halo I ever played was Halo 3: ODST, and it completely changed my perception of first-person video games.