FastAPI – Felix Augenstein

July 4, 2025Agentic AI, FastAPI, Generative AI, LangChain, LangGraph, Python, REST APIs, Streamlit

Building Agentic Systems: A Hands-On Guide with LangChain and LangGraph

In the rapidly evolving world of AI, agentic systems have emerged as a powerful architectural pattern that brings together intelligent decision-making and real-world utility. This post dives into what agentic systems are, introduces the concept of agents, and walks you through setting up a complete working prototype: an Agentic Ticket […]

May 23, 2025Application, FastAPI, Generative AI, LangChain, Large Language Models, Python, REST APIs, Streamlit

Building GenAI Apps with LangChain, FastAPI & Streamlit

The rapid evolution of generative AI has unlocked endless possibilities—from chatbots and email generators to advanced research assistants. But creating full-stack GenAI apps can feel daunting without the right tools. Therefore I tried to build some GenAI apps myself with the LangChain GenAI Apps repository: a hands-on template for building […]

May 3, 2025May 23, 2025FastAPI, Python, REST APIs

Getting Started with FastAPI and uv: A Lightweight Python Web Framework Stack

FastAPI is a modern Python web framework that makes it easy to build APIs quickly and efficiently, with automatic documentation and strong type support. Combined with uv — a lightweight developer tool that wraps Python virtual environments and package management — it becomes even simpler to set up and maintain […]