> For the complete documentation index, see [llms.txt](https://smashfi.gitbook.io/smashfi-service-guide-book/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://smashfi.gitbook.io/smashfi-service-guide-book/guide/login.md).

# Login

SmashFi allows easy and quick registration and login by using your own account with completed KYC after joining a global exchange. There is no separate registration process required, and after the initial linkage, login is possible through the oAuth authentication method of each exchange.