> 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): Borrow USDT against Bitcoin held in your own vault address, at a rate that moves with demand, with no fixed term and no repayment schedule.
- [Lending](https://docs.libre.org/libre-docs/core-features/overview-1.md): Deposit USDT into the lending pool, earn interest from borrowers, and redeem your share whenever the pool has liquidity.
- [Trading](https://docs.libre.org/libre-docs/core-features/overview-2.md): Libre runs an on-chain orderbook DEX with no protocol trading fee, no listing process and no KYC — open to anyone, including bots.
- [Custody & Security](https://docs.libre.org/libre-docs/core-features/overview-3.md): Understanding Libre's security model with segregated Bitcoin collateral, transparent liquidations, and on-chain verifiability.