Ferum

Ferum is an on-chain order book on Aptos that stands out for its developer-friendly features. It provides a platform that is easy to navigate and use, making it an ideal choice for developers working with Aptos.

Patronus is a DeFi Liquidity Protocol which aims to provide a suite of DeFi products and services for a safer and more efficient capital flow.

Spectrum Protocol is an Innovative, Decentralized Yield Optimizer platform that allows users to earn compound interest on their crypto assets farming.