Helix Stellar — Soroban Core Infrastructure

Cross-chain LST collateral lending on Stellar. SCF #41 Build Award.

Contracts

Contract	Purpose	Phase
helix-token	hstETH — SEP-41 non-rebasing vault receipt token	T1 Phase 1
helix-vault	Collateral vault — deposit, borrow, liquidate	T1 Phase 2
helix-oracle-adaptor	SEP-40 oracle with TWAP + multi-source fallback	T1 Phase 3
helix-mock-bridge	Mock Axelar GMP for testing	T1 Phase 1-2

Quick Start

# Setup toolchain + testnet identity
chmod +x setup.sh && ./setup.sh

# Build
make build

# Test
make test

# Build + optimize WASM
make optimize

# Check sizes
make sizes

Architecture

User locks wstETH on Ethereum
    → Axelar GMP message
    → Stellar: mint hstETH (share-based, non-rebasing)
    → Deposit hstETH as collateral in Helix vault
    → Borrow against collateral at oracle-derived health factor

License

TBD