OOBE Protocol is a Solana-based execution architecture designed for autonomous software systems and AI agents. The protocol provides a unified execution substrate that combines an agent operating system, a deterministic agent runtime, an AI-tailored execution fabric (Synapse), and on-chain settlement on Solana. Its purpose is to enable agents to plan, execute, verify, and pay for computation and infrastructure access in a reliable and observable manner. OOBE abstracts infrastructure complexity while enforcing execution constraints, economic limits, and verifiable receipts, allowing autonomous systems to operate continuously without relying on opaque APIs or manual intervention.