What Is ZetaChain (ZETA)? ZetaChain is a universal Layer 1 blockchain designed to help developers build applications that operate across both blockchains and AI models. Originally created to solve fragmentation in Web3 through universal apps, ZetaChain now extends that same interoperability thesis to AI with an AI interoperability stack that enables cross-model experiences with private, user-controlled context. ZetaChain provides native connectivity across major blockchain ecosystems and supports global execution, permissions, and settlement for applications and agents.