Semantic Kernel SDK

Semantic Kernel (SK) is Microsoft's open-source SDK for C#, Python, and Java: it integrates Large Language Models (LLMs) with conventional code to build intelligent, enterprise-grade AI agents.

Semantic Kernel (SK) is a lightweight, model-agnostic SDK from Microsoft: it acts as the orchestration layer between your existing application logic and cutting-edge LLMs (e.g., OpenAI, Azure OpenAI). Developers use it to define modular 'Skills' (semantic prompts or native code functions) and manage 'Memory' for context retention across interactions. The core 'Planner' capability enables the AI agent to automatically break down complex user requests into a sequence of steps, connecting LLM reasoning with external APIs and services via a robust plugin ecosystem. SK ensures you deliver responsible, future-proof AI solutions at scale, supporting C#, Python, and Java.

https://github.com/microsoft/semantic-kernel