LangChain

LangChain provides a comprehensive platform for building, deploying, and managing reliable AI agents and Large Language Model (LLM) applications. Its product suite includes the open-source LangChain Framework for integrating various models, databases, and tools, LangGraph for controllable agent orchestration and long-running workflows, and LangSmith for unified evaluation, debugging, and observability of LLM app performance. The platform accelerates agent development with templates, supports human-in-the-loop capabilities, and offers tools for gaining visibility and improving quality through tracing and evaluation.