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

# Addons

- [Database Service](https://docs.umbcheckout.net/core-services/addons/database-service.md): A service which handles storing of the Basket in the database