hopper-lending

Lending protocol math for Hopper programs: collateral ratios, health checks, liquidation limits, seize amounts, utilization, and simple interest. Pure functions, no_std, no_alloc, and BPF-safe.

Part of the Hopper framework.

Pass the current collateral value, debt value, and protocol thresholds. The crate returns basis-point ratios or rejects the position with a concrete ProgramError. There is no hidden state and no heap allocation.

use hopper_lending::{
    check_healthy,
    liquidation_seize_amount,
    max_liquidation_amount,
};

check_healthy(collateral_value, debt_value, liquidation_threshold_bps)?;
let max_repay = max_liquidation_amount(debt_value, close_factor_bps)?;
let seized = liquidation_seize_amount(max_repay, bonus_bps)?;

Docs: https://docs.rs/crate/hopper-lending/0.1.0

License: Apache-2.0.