Building Multi-Agent AI Systems for Banking: Simple Task Automation with CrewAI (Part 2)

Hands-on implementation of a basic fraud detection agent system with step-by-step code walkthrough In Part 1, we explored the theory behind agentic AI and why multi-agent systems matter in banking. Today, we build something real. By the end of this guide, you will have a working fraud detection system with three specialized agents collaborating to analyze suspicious transactions. This is not a theoretical exercise. The code you write today follows the same patterns I use in production systems that process millions of transactions. The difference is scale, not architecture.