> For the complete documentation index, see [llms.txt](https://docs.zithium.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.zithium.net/xl-series/xltournaments/developer-api.md).

# Developer API

- [Events](https://docs.zithium.net/xl-series/xltournaments/developer-api/events.md): XLTournaments has a few events you can listen to in your plugin to execute certain actions.
- [Custom Objectives](https://docs.zithium.net/xl-series/xltournaments/developer-api/custom-objectives.md): This guide will explain how to add your very own objective to XLTournaments.