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

# Core Features

- [Borrowing](https://docs.libre.org/libre-docs/core-features/overview.md): Learn how to borrow USDT against your Bitcoin collateral with segregated vaults and transparent liquidation rules.
- [Lending](https://docs.libre.org/libre-docs/core-features/overview-1.md): Earn predictable yield by providing USDT liquidity to fixed-rate lending pools backed by segregated Bitcoin collateral.
- [Custody & Security](https://docs.libre.org/libre-docs/core-features/overview-2.md): Understanding Libre's security model with segregated Bitcoin collateral, transparent liquidations, and on-chain verifiability.