In this blog, we’ll enhance our LangGraph chatbot by adding Human-in-the-Loop (HITL) capabilities. Learn how to pause AI workflows for expert input using interrupt(), seamlessly blend human reasoning into your LLM responses, and build more reliable, production-ready chat agents — all on top of the memory-powered chatbot we built previously.

Want your chatbot to remember what you said earlier? In this beginner-friendly guide, we build on our previous LangGraph chatbot and add memory using MemorySaver. Learn how to persist conversation history, manage sessions using threads, and inspect state — step-by-step.

Ready to give your chatbot superpowers? In this beginner-friendly guide, we’ll show you how to integrate external tools like web search into your LangGraph-powered chatbot. Learn what tools are, why they matter, and how to add them step-by-step — no prior AI experience needed!