zkCross Network develops production-grade DeFi infrastructure for secure, cross-chain execution. Its stack includes a Guardian Layer that validates transactions, per-user vault contracts, MPC authorization, cross-chain execution across 40+ chains, and on-chain audit trails. The infrastructure supports blockchains and ecosystems, wallets and applications, institutions and treasuries, and market makers and desks. SurfLiquid is its consumer distribution and intelligence layer, providing non-custodial AI-powered yield vaults across lending, liquidity, and cross-chain strategies.