Semantic Kernel

Microsoft's enterprise SDK to wire LLMs into C#, Python, and Java apps.

Semantic Kernel is an open-source SDK from Microsoft for integrating large language models into conventional applications across C#, Python, and Java. It exposes plugins, planners, memory, and an agent framework so developers can compose AI capabilities alongside native code with enterprise concerns like telemetry and security. It is widely adopted for embedding LLM orchestration into existing production codebases.