What is Sable?
Sable is a multi-strategy Bitcoin yield aggregator built on StarkNet that gives Bitcoin holders access to permissionless DeFi yield without sacrificing custody or privacy. The protocol combines six ERC-4626 yield vaults, zero-knowledge privacy features, automated dollar-cost averaging, CDP borrowing, and cross-chain bridging into a unified platform.Why Sable Exists
Bitcoin represents over $1.8 trillion in value, yet most BTC holders earn zero yield on their holdings. Traditional finance offers minimal returns, and existing DeFi solutions often require:- Trusting centralized custodians
- Complex multi-step processes across different chains
- Sacrificing privacy by linking deposits to withdrawals
- Manual execution of recurring strategies
- Low transaction costs compared to Ethereum mainnet
- Fast finality for deposits and withdrawals
- Native account abstraction for better UX
- Cairo-based smart contracts with formal verification capabilities
Core Features
6 BTC Yield Vaults
Tokenized ERC-4626 vaults implementing distinct strategies from conservative lending to aggressive multi-protocol yield optimization. Each vault automatically compounds returns and allows permissionless deposits/withdrawals.Zero-Knowledge Privacy
Groth16 BN254 proofs verified on-chain via Garaga enable shielded deposits and withdrawals. Users can deposit WBTC or USDC into privacy pools and withdraw to completely different addresses with no on-chain link.Smart DCA with Mayer Multiple
Automated recurring BTC purchases that adjust buy amounts based on market conditions. When BTC is historically undervalued, the system buys more; when overheated, it buys less.CDP Borrowing
Deposit WBTC as collateral and borrow USDC against it via Nostra lending protocol integration. Maintain health factors above 1.0 to avoid liquidation while accessing liquidity.Direct WBTC Staking
Stake WBTC directly into Vesu lending pools to earn base APY plus STRK rewards from the BTCFi Season incentive program without vault complexity.Cross-Chain Bridge
Bridge assets to/from StarkNet using NEAR Intents protocol. Supports Solana, Ethereum, Base, Arbitrum, Polygon, Avalanche, and other chains.Who Should Use Sable
Sable is designed for:- Bitcoin holders seeking yield on their BTC without selling
- Privacy-conscious users who want to break on-chain transaction links
- DCA practitioners who want automated, intelligent recurring purchases
- Yield farmers looking for optimized multi-protocol strategies
- Long-term holders who want to borrow against BTC without liquidating
Key Benefits
Permissionless Access
No KYC, no custody handoff. Your keys, your Bitcoin, your yield.
StarkNet L2 Efficiency
Low fees, fast finality, and native account abstraction for better UX.
Battle-Tested Integrations
Built on Vesu, AVNU, Ekubo, Endur, Nostra, and other proven protocols.
Zero-Knowledge Privacy
Groth16 proofs verified on-chain via Garaga enable true financial privacy.
Get Started
Quickstart Guide
Connect your wallet and make your first deposit in 5 minutes
Architecture Overview
Understand how Sable’s tech stack and protocol integrations work
Technical Highlights
- Smart Contracts: Cairo 2.14.0 compiled with Scarb 2.13.1
- Frontend: Next.js 16 with React 19 and Tailwind v4
- ZK Proofs: Groth16 BN254 verified on-chain via Garaga 1.0.1
- Deployed: All contracts live on StarkNet Mainnet with 500+ transactions
- Open Source: Fully verifiable on-chain with transparent contract interactions
Contract Addresses (Mainnet)
All Sable contracts are deployed on StarkNet Mainnet:| Contract | Address |
|---|---|
| Sentinel Vault | 0x04ec7fdb1679450fb88eae9facc439a46be4ddeba628211e269a7467f6e0971b |
| Citadel Vault | 0x077ad8d0fe4b946cedc02eb8eb61a64e85bcde802a83e879e8c68fed8b9b130e |
| Trident Vault | 0x058aadc9db62700de03d89a7c8f2952851d94e75f854cc6a340ef92d00cd3fb8 |
| Delta Neutral Vault | 0x06c8779ee7ed14b35ac5c6eae5dc721cc3e8104a65ffef4b5252babc407a1012 |
| Turbo Vault | 0x05f3d02005027296ccfb90574544b941d9ddc55c673e6fe0e92cb6f07e68d1f7 |
| Apex Vault | 0x071eb7fc3a912c0ee85b1dc795e29fd77ff4203a33384a1171dd4fcb7c7b3df9 |
| DCA Contract | 0x0730f5de50171590132ff9238859d7eccbfa8359393f52083b3b88b397955e56 |
| CDP Contract | 0x042f0f1cbb5ce44cc411f608d3c8295f3816ef7c3b6764cd6e46463efc7ca499 |