OpenFang is an innovative open-source Agent Operating System developed in Rust, designed to deliver a cohesive runtime for the creation, deployment, and oversight of autonomous AI agents at a production level. It features a comprehensive architecture bundled into a single executable, which allows developers to deploy agents that run continuously, construct knowledge graphs, and send updates to a centralized dashboard without the need for ongoing user interaction. Central to OpenFang are its "Hands," which are pre-configured autonomous capability packages that function on predetermined schedules to carry out various tasks, including lead generation, research activities, browser automation, and social media management. The platform offers numerous pre-built agents along with native tools and channel adapters, facilitating seamless operation across various platforms such as Slack, WhatsApp, Discord, and Teams from a unified interface. Engineered with security at its core, OpenFang incorporates multiple layers of defense, including WASM sandboxing, cryptographic signing, taint tracking, and tamper-proof audit trails, ensuring robust protection for users. This comprehensive approach not only enhances the functionality of AI agents but also fosters trust and reliability in their operations.