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

# Introduction

Helios aims to tap into Bitcoin’s enormous yet underutilized liquidity in DeFi by providing a trustless platform for BTC lending/borrowing while maintaining self-custody and one-step simplicity. In short, Helios brings Aave-like **money market** functionality to **Bitcoin mainnet**, but without compromising on decentralization or security.