We're building an open-source broadcasting framework for interactive AI-driven livestreams. The system allows anyone to customize, create, and deploy their own interactive livestreams. For participants, AI livestreams are a fun opportunity to shape the content of a stream in realtime with friends. Creators can bring their IP or brand to life using the MESA framework and by hosting a livestream of their own. Each livestream is connected to a game-engine that drives the experience. The MESA framework functions with many different engines, whether it's Unity, Unreal, three.js, in both 3D and 2D visual modes. With an integrated content pipeline, viewers can bring their own characters, assets, and agents into a MESA hosted livestream.