Fusion features a two-layer architecture: Composers, independent Layer 1 blockchains tailored for specific sectors like AI, decentralized science (DeSci), and decentralized physical infrastructure networks (DePIN), and Modules, plug-and-play services like compute, stablecoins, and biometric data that support Composers. Each Composer offers accessible SDKs and APIs, allowing developers to integrate services, deploy applications, and execute tasks.