Lombard is a leading Bitcoin finance protocol with $3 billion in Bitcoin onboarded. Founded in 2024 and backed by Polychain Capital, Franklin Templeton, and Binance Labs, Lombard's products, LBTC, BTC.b, the Lombard SDK, Bitcoin Smart Accounts and Bitcoin Earn, enable Bitcoin holders, corporate treasuries, and financial institutions to earn yield on, borrow against, and deploy their Bitcoin onchain. Lombard's infrastructure powers Bitcoin products for the users of Ledger, Binance, and Bybit, and integrates with Aave, Morpho, and 50+ DeFi protocols across 10 blockchains. These docs cover everything you need to use, build on, or integrate with Lombard.
Get Familiar with Lombard
Core concepts, architecture, and how Lombard works.
Products Overview
LBTC, BTC.b, vaults, and the Lombard SDK.
Protocol Architecture
Lombard Ledger, CubeSigner, and cross-chain infra.
Security Model
Institutional consortium members and hardware-backed keys.
Use LBTC
Deposit BTC, mint LBTC, and deploy across DeFi.
Token Economics
BARD governance, staking, and Lux rewards.
Transparency
Proof of Reserve, smart contracts, and risk docs.
Build & Integrate
Developer tools and SDKs to build on Lombard.
Bitcoin Connect
Developer platform for integrating Bitcoin into any app.
The Lombard SDK
Deployment-ready toolkit for onchain Bitcoin products.
Support
Get help and troubleshoot common issues.