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

# billz

- [overview](https://docs.bill-z.com/billz/overview.md)
- [how it works](https://docs.bill-z.com/billz/how-it-works.md)
- [fees](https://docs.bill-z.com/billz/fees.md)