Microsoft launches Rayfin to let developers and agents build app backends on Fabric

Everyone is making AI videos. But Microsoft is empowering developers with Rayfin. Launched at Build 2026, Rayfin is an open-source SDK and CLI. It lets developers and AI coding agents build full application backends on Microsoft Fabric. This move expands Fabric’s developer ecosystem significantly. Why is this important? It positions Microsoft as a leader in AI-native app development. Rayfin strengthens Microsoft’s hold in cloud-based data and AI infrastructure. For developers, this means faster deployment and better integration. It’s a key step in harnessing the power of AI across applications. Microsoft is setting a new standard in AI development. Want to dive deeper? Full article link in bio.