LangChain provides the engineering platform and open source frameworks developers use to build, test, and deploy reliable AI agents.

LangChain is a framework for building agents and LLM-powered applications. It helps you chain together interoperable components and third-party integrations to simplify AI application development …

Dec 12, 2025 · LangChain is an open-source framework designed to simplify the creation of applications using large language models (LLMs). It provides a standard interface for integrating with …

LangChain is a software framework that helps facilitate the integration of large language models (LLMs) into applications. As a language model integration framework, LangChain's use-cases largely …

Nov 3, 2025 · LangChain is an open-source framework that helps developers connect LLMs to the real world. It gives these models memory, access to data, and the ability to use tools — turning them …

LangChain is an open source orchestration framework for application development using large language models (LLMs). Available in both Python- and Javascript-based libraries, LangChain’s tools …

LangChain is the platform for agent engineering. AI teams at Replit, Clay, Rippling, Cloudflare, Workday, and more trust LangChain’s products to engineer reliable agents.

1 day ago · Learn how to use LangChain to build a frontend-facing conversational AI agent, connect LLMs, manage prompts, integrate APIs, and deliver responsive chat experiences.

LangChain is an open source framework with a pre-built agent architecture and integrations for any model or tool, so you can build agents that adapt as fast as the ecosystem evolves.

3 days ago · LangChain co-founder and CEO Harrison Chase explains why harness engineering — not just smarter models — is what gets AI agents from prototype to production.