> For the complete documentation index, see [llms.txt](https://docs.hydromancer.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.hydromancer.xyz/readme/websocket/user-data.md).

# User data

Stream live fills, order updates, TWAP statuses and ledger events for many users.