LangChain 101: How to Chain LLM Calls Like a Pro

Ever wished your AI could think in multiple steps—like answering a question, doing a search, summarizing, and emailing the result—all in one go? That’s exactly what LangChain helps you do. With LangChain, you can “chain” multiple LLM prompts, tools, and logic blocks together into a single intelligent workflow. In this beginner-friendly guide, you’ll learn how LangChain works, why it matters, and how to build your first chain—without getting overwhelmed.