LangChain Projects and Use Cases: Build Real AI Applications with LangChain Modules, Agents, and APIs

By Laitan Michael

Build AI tools that actually work.

LangChain is more than a cool framework. It's a foundation for building useful, reliable AI applications that solve real problems and this book shows you how to use it that way.

In LangChain Projects and Use Cases, you'll go beyond basic demos and learn how to create production-grade tools using LangChain's core modules, chains, agents, and APIs. Each chapter is a self-contained project that teaches real-world development patterns, complete with code walkthroughs, system design insights, and architecture planning.

Inside, you'll build and understand tools like:

A context-aware AI Support Assistant with document retrieval and memoryA Smart Research Summarizer that fetches live web contentA Lightweight SEO Content Generator with tone and formatting controlA Custom Data Enrichment Tool for structured datasetsAn Email Reply Assistant that connects to real inbox threadsA Structured Decision Helper that handles reasoning and multi-input logic

You'll also learn how to package your apps, connect external APIs, manage prompt logic, handle errors, and design for sustainability, skills you'll reuse across every future AI project.

Whether you're a solo developer, product builder, or team lead, this book gives you working blueprints for serious LangChain development.

Stop building throwaway demos. Start shipping real tools.

• Format: Paperback
• Language: English
• ISBN: B0FDL3X1JX
• ISBN13: 9798288513282
• Release Date: June 2025
• Publisher: Independently Published
• Length: 98 Pages
• Weight: 0.33 lbs.
• Dimensions: 0.2" x 6.1" x 9.2"