The Smart Contract Platform

Libre is the best place to build smart contracts that interact with Bitcoin, Stablecoins, and even Bitcoin Lightning.

Libre is the first user-focused tool for making stablecoin (USDT) and Bitcoin (BTC) incredibly simple to integrate into existing games, apps, or wallets - or even build smart contracts to interact with BTC and USDT.

Origins and Vision

Libre was initially built with a specific focus on Bitcoin and Tether integration, designed to power the platform's lending and trading system that runs the DEX. This foundation is particularly valuable for handling liquidations efficiently. While Libre serves this core purpose, it has been developed as an open ecosystem that welcomes builders to create their own applications and services leveraging the same powerful infrastructure.

Bitcoin Integration Options

Unlike other platforms that offer limited ways to interact with Bitcoin, Libre provides two powerful approaches:

Unwrapped BTC (Vault System)

The CrossLink vault system allows users and applications to work with native Bitcoin without wrapping. This approach:

• Maintains BTC in its original form

• Uses dedicated per-user vault addresses

• Provides individual segregated custody

• Enables direct collateralization

• Offers maximum security for high-value applications

Wrapped BTC (Fast BTC)

For applications requiring faster transactions and higher throughput, Libre offers wrapped Bitcoin tokens:

• 1:1 backed by Bitcoin in the bridge

• ~1 second transaction finality

• Lower fees for frequent operations

• Seamless integration with other tokens

• Ideal for trading applications

Full Turing-Complete Smart Contracts

What truly sets Libre apart is combining these Bitcoin integration options with a complete Turing-complete WASM smart contract layer. Unlike platforms with limited scripting capabilities, Libre enables developers to:

• Build complex financial applications

• Implement sophisticated trading algorithms

• Create automated vault management systems

• Develop liquidation protection services

• Design novel DeFi mechanisms using both BTC and USDT

This powerful combination makes Libre uniquely positioned for Bitcoin-native DeFi development.

Integration for Payments

Libre is the simplest way to integrate payments to send and receive Tether and Bitcoin. With one single QR code - anyone in the world can accept a payment of USDT or BTC on Libre chain instantly, with no fees.

Interacting with Accounts

It's very easy to implement wallet integrations with any of the wallets working on Libre Chain for authentication and signing transactions. Please see the accounts and wallet section here for more info.

Developers can use the open-source Libre-Link npm package for authentication and execution of signing requests.