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Overview

What is Unbound?

Unbound is an automated leveraged vault that allows users to amplify their Bitcoin exposure on Starknet. By abstracting away the complexity of “looping” (repeatedly depositing and borrowing), Unbound enables one-click leveraged positions.

The Problem

Manually achieving leverage on lending protocols requires:
  1. Deposit collateral (wBTC)
  2. Borrow stablecoins (USDC)
  3. Swap USDC → wBTC
  4. Deposit the new wBTC as more collateral
  5. Repeat until desired leverage is reached
This process is:
  • Time-consuming: Multiple transactions required.
  • Gas-intensive: Each step costs transaction fees.
  • Error-prone: Easy to make mistakes during looping.
  • Capital-inefficient: Requires waiting between transactions.

The Unbound Solution

Unbound uses flash loans to achieve leverage in a single atomic transaction:
User deposits 1 wBTC → Flash loan USDC → Swap to wBTC → Deposit all as collateral → Borrow USDC → Repay flash loan
Result: 2.5x leverage achieved instantly.

How It Benefits Users

BenefitDescription
SimplicityOne transaction instead of many
AtomicityEither everything succeeds or everything reverts
Gas EfficiencySingle transaction = lower total fees
No Slippage RiskFlash loan guarantees execution

Use Cases

1. Bullish on Bitcoin

You believe BTC will go up and want amplified exposure. With Unbound:
  • Deposit 1 wBTC
  • Select 2x leverage
  • Now have exposure to 2 wBTC worth of price movement

2. Yield Farming with Leverage

Some protocols offer incentives (like Starknet BTCFi rewards) for borrowing. With leverage:
  • Amplify your borrowing position
  • Earn more rewards relative to your initial deposit

3. Hedged Positions

Combine leveraged long with other strategies to create sophisticated positions.

Position Economics

When you open a leveraged position:
ComponentExample (2x on 1 wBTC @ $100k)
Your Deposit1 wBTC ($100,000)
Borrowed USDC$100,000
Total Collateral~2 wBTC ($200,000)
Total Debt$100,000 USDC
Net Exposure2x to BTC price

When BTC Goes Up 10%

  • Collateral Value: 2.2 wBTC = $220,000
  • Debt: $100,000
  • Equity: $120,000 (+20% gain, 2x amplified)

When BTC Goes Down 10%

  • Collateral Value: 1.8 wBTC = $180,000
  • Debt: $100,000
  • Equity: $80,000 (-20% loss, 2x amplified)

What Unbound Does NOT Do

  • ❌ Custody your funds (all assets are in Vesu)
  • ❌ Guarantee profits
  • ❌ Protect against liquidation
  • ❌ Provide insurance