welcome

To get the most from this book, you should be comfortable writing Python and working with APIs. Some experience with large language models will help, but you do not need to be an expert in AI agents, CrewAI, or MCP before you begin. The goal of the book is to help you build practical agentic applications step by step, and to give you enough understanding to adapt the ideas to your own work.

AI is changing software development quickly. Some of that change is exciting, some of it is noisy, and some of it is still uncertain. But one thing seems clear: people who understand how to build with these systems, not just talk about them, will be in a much better position as the field matures. By reading this book and experimenting with the examples, you are investing in a skill set that is likely to matter more and more over the next few years.

There is a lot of discussion around agent frameworks right now. I have tried many of them, and I have also written my own. What I appreciate about CrewAI is that it gets you up and running very quickly. You can build a prototype in hours using the tools that the framework already provides, then customize everything you need to as your application grows.