LangChain

What it is

LangChain is a popular framework for building AI applications, particularly agents and chains. It provides components for connecting LLMs to tools, memory systems, and data sources, making it easier to build complex AI applications without starting from scratch.

Why it matters

LangChain is widely used for building agents and AI workflows. If you're exploring agentic AI development, LangChain is a likely starting point. Understanding it helps you follow tutorials, understand project architectures, and communicate with developers building AI systems.