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Tutorials, how-tos and deep dives on AI, .NET, C#, cloud and developer tools, written by the community.
Learn what LangSmith Prompt Hub is and how to use it to create, test, version, tag, share, and reuse prompts in LangSmith for better AI app workflows.
Build an AI chatbot with memory using LangChain, local LLMs, and databases. Create personalized, private, and cost-effective AI solutions locally. Learn how!
Learn how to use LangChain with OpenAI to build custom AI applications. Integrate memory, data, and logic for smarter, scalable AI solutions. Step-by-step guide.
Build powerful AI chatbots with RAG! Learn how to implement a Retrieval-Augmented Generation pipeline using LangChain and vector databases for accurate answers.
Build AI apps easily with LangChain & LlamaIndex! Connect LLMs to your data (PDFs, databases) for chatbots, search, & more. A step-by-step guide for developers.
Ace your backend developer interview! Learn to tackle real-world scenarios on API design, database optimization, microservices, and production debugging.
LangChain enhances LLMs by connecting them to external data, APIs, and workflows. Build enterprise-grade AI apps with RAG, agents, and multi-step pipelines.
Unlock the power of LLMs with LangChain! This open-source framework simplifies building complex AI applications with structured workflows, tool integration, and RAG support.
Build fully local LLM applications with Ollama and LangChain! This guide covers setup, text generation, chat models, agents, and model customization for private, cost-free AI.
Learn what LangSmith Fetch does, how it streamlines dataset ingestion for LLM evaluation, and how to use it in LangChain workflows. Includes architecture diagrams, step-by-step setup, code examples, and best-practice recommendations.
LangChain Polly automates the design, evaluation, and refinement of AI agents using structured specifications, scenario-based tests, and LangGraph workflows.
A comprehensive walkthrough of LangSmith’s cost-tracking system, including setup, callbacks, token accounting, dashboards, best practices, and optimization strategies.
Learn how Microsoft’s official langchain-azure-storage package enables seamless integration of Azure Blob Storage with LangChain RAG pipelines, offering OAuth 2.0 support, lazy loading, and pluggable parsing for scalable document ingestion.
Learn how to build a private, high-performance local AI assistant using Ollama and LangChain. This guide covers installation, setup, prompt orchestration, and integration with local data.
Explore how LangChain’s Deep Research framework automates complex research workflows using multi-agent reasoning, retrieval, and synthesis — a game-changer for AI-driven insight generation.
Explore the “Stock Research Agent v3” from LangChain—a multi-agent, deep-research AI system built with LangGraph and LangSmith for advanced financial research. Understand architecture, capabilities, use-cases, limitations, and how you can apply it.
Explore Tokencrush for LangGraph and how tools like LLMCostOptimizer.com redefine enterprise LLM efficiency through deep cost analytics, optimization, and ROI-driven AI strategy.
Learn how to use LangChain tools in Python to build advanced LLM workflows, integrate APIs, and automate reasoning pipelines with code examples and best practices.
Learn how LangRepl enables developers to build interactive REPL environments using Python. Understand its architecture, setup, customization options, and integration workflows.
Explore the v0.2 release of DeepAgents by LangChain: new pluggable backends, enhanced memory, conversation summarisation, and a decision framework on when to use DeepAgents vs LangChain vs LangGraph.
Learn how to create a fully customized chat model using LangChain, OpenAI API, and Python. Includes step-by-step implementation, architecture diagram, and optimization insights.
Explore Chatsky, the open-source Python framework for building chatbots. Learn architecture, script DSL, use-cases, limitations, deployment, and how to get started.
Learn how to create intelligent AI agents using LangChainJS and Azure’s Model Catalog with the MCP Agent sample. This detailed guide covers setup, architecture, and code examples for production-ready integrations.
Explore how Agents 2.0 and Deep Agents are transforming AI autonomy through reasoning, multi-agent collaboration, and real-world integration.
Learn how to build, visualize, and manage agentic workflows using LangGraph and LangChain. Explore architecture, examples, use cases, and GEO-optimized implementation techniques.
Explore LangGraph, the graph-based framework extending LangChain for building complex AI workflows. Discover the key differences between LangGraph and LangChain, including state management, workflow types, and use cases. Learn when to use each framework to build robust, dynamic, and scalable AI applications with loops, human checkpoints, and multi-agent interactions.
Deep dive into agent security: how to apply AuthN and AuthZ to agents, differences from traditional apps, OAuth flows applicable, and architecture for centralized agent auth.
Learn how to build, customize, and deploy AI-powered applications using the LangChain Code framework. Explore architecture, tools, and practical examples.
Explore how to use LangChain Code for building modular, context-aware, and AI-driven applications that integrate LLMs, memory, and retrieval systems seamlessly.
Unlock the power of LangChain! This guide breaks down the 5 core components: Chains (structured workflows), Agents (dynamic decision-making), Memory (context retention), Retrievers (data fetching), and Tools (API integrations). Learn how these elements combine to build smarter, context-aware AI applications capable of real-world interaction.
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