This article outlines the essential building blocks required for a thriving smart contract ecosystem on Soroban, including financial protocols (AMMs, lending markets), data access tools (oracles, indexers), user interfaces (wallets, block explorers), and security mechanisms. It demonstrates how these interconnected components enable real-world DeFi use cases like decentralized lending.

The article explains that while a smart contract platform like Soroban provides the foundation for blockchain development, it requires multiple interlocking building blocks to create functional, sustainable applications. Financial building blocks include AMMs for token swaps and liquidity provision, plus lending and borrowing markets that enable yield generation and credit facilities. Data access tools like oracles connect smart contracts to real-world information, while indexers enable efficient querying of on-chain data. User-facing tools include block explorers for transaction inspection and smart wallets for asset management. The ecosystem also requires audit firms and open-source contract templates to ensure security and trust. The article illustrates these concepts through a practical example of a user in an emerging market accessing decentralized lending services via a smart wallet, demonstrating how Soroban's comprehensive ecosystem enables financial inclusion and interoperability.