Band provides interaction infrastructure for teams building and operating multi-agent systems. It gives AI agents and humans shared rooms where they can discover each other, exchange context, delegate work, and coordinate in real time. The platform adds routing, identity, permissions, governance, memory, delivery tracking, and auditability while letting customers keep their own models, tools, prompts, frameworks, and runtime environments. It is aimed at developers, R&D teams, and enterprises that need to make multiple agents work together without building custom coordination plumbing.