Dive into Halo with OpenSpartan

This project is all about making data exploration for everything made available through the Halo API easy. Whether it's building libraries, writing docs, or documenting every nook and cranny of the public Halo API services - you can find it here.

Hero image for the OpenSpartan website, with a black background and a purple Spartan helmet.


Everything you need to explore the universe of Halo APIs

Gone are the days when you need to manually reverse-engineer the Halo APIs to get stats, medals, and so much more. Because it's all done for you in the OpenSpartan suite of products.

A comprehensive SDK

With the help of the Grunt SDK, you can access hundreds of Halo API endpoints directly from your application. No boilerplate code required.

Extensive documentation

Writing the code is only half of the journey. To be useful, it needs docs. That's why you'll find some of the most comprehensive API documentation here.


The SDK that is built for OpenSpartan is used by OpenSpartan. You can see game data along with all relevant breakdowns to make it easier to understand player performance.

Command Line Interface

What if you don't want to use the SDK, but still want to access the Halo API data? You can use the Command Line Interface that works across platforms.


If you are not satisfied with the SDK, you can always dive into the API wiki to learn more about how things work under the hood - and use them yourself.


All code that you see used in Grunt and for data aggregation is open-source. Fork it and remix it to your heart's content. Make sure to use proper attribution.

Get started building with the Halo API in just a few steps.

There is nothing better than experiencing developer tools that get out of the way and allow you to focus on what's important. This is the goal with OpenSpartan - make Halo API and data access ridiculously easy.

  • 1

    Explore the SDK docs and data

    All previously undocumented APIs are now documented. Browse through the docs to learn more about what they can do! As a matter of fact, all data is documented too.

  • 2

    Start building with the SDK

    Adding OpenSpartan.Grunt to your project is as easy as using your favorite package manager.

  • 3

    Share what you built

    Let me know what you built on @openspartan - I'd love to get your feedback on how the tooling can be made better.


Documenting the undocumented APIs? You got it. Data about your matches and medals? You got it too. The only thing OpenSpartan doesn't do is write code for you (yet).