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Vanna connects liquidity providers with margin accounts that can use borrowed funds in approved Stellar protocols. These pages explain the accounting behind the app.

Margin accounts

Token custody and account-level debt.

Lending pools and vTokens

Supply, borrowing and how vToken receipts grow.

Health factor and liquidation

Collateral valuation and how liquidation resolves debt.

Rates and prices

The interest-rate curve and the Reflector-backed oracle.

Registry

Permitted assets, contracts and controllers.

Composable leverage

Deploying borrowed capital into Blend, Soroswap and Aquarius.
These pages describe the Stellar testnet contracts, with XLM and three distinct USDC test tokens (BLUSDC, AqUSDC, SoUSDC). Contract addresses are listed in Deployed Contracts. Also see vTokens, Liquidation, Oracle System, Pool Mechanics and Protocol Architecture.