> For the complete documentation index, see [llms.txt](https://docs.aurras.hugobyte.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.aurras.hugobyte.com/components/event-feed.md).

# Event Feed

This is the source of events for the aurras system. Events come from numerous sources.

* Blockchain
  * [Substrate based chain](/components/event-feed/event-feed-substrate.md) (Polkadot, Kusama)
* IoT Devices