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Are you a LangChain developer or backend engineer who needs to deploy your sophisticated chain locally? LangServe is the official deployment framework from the LangChain team that turns your LangChain applications into production-ready REST APIs in minutes. This video provides a complete explanation of what LangServe is and why it is the easiest way to deploy LangChain applications. What you will learn in this overview: • FastAPI Integration: LangServe automatically uses Python's modern API framework, FastAPI, for speed and documentation. • Auto-Generated Endpoints: Your chain automatically generates standard endpoints, including /invoke (for single questions), /batch (for multiple questions), and /stream (for streaming responses). • Production Features: LangServe handles all the deployment complexity, including server-sent events for token-by-token streaming delivery (like ChatGPT) and automatic documentation. It even generates an interactive API testing Playground. • Deployment Options: Learn how to deploy your LangServe application using Docker containers or to cloud platforms like AWS, GCP, or Azure. LangServe is the official, supported path for serving your LangChain logic to users. It is ideal for quickly launching RAG APIs (Document Q&A services) or Chatbot Backends. If you've built a LangChain application and need to serve it via API, this is the video for you!