Building AI Agentic Systems with AG2 and FastAPI
Last Updated on August 28, 2025 by Editorial Team
Author(s): Sandani Fernando
Originally published on Towards AI.
Building AI Agentic Systems with AG2 and FastAPI
AG2 is a multi-agent conversation framework facilitating cooperation among multiple agents. It enables agents to collaborate to solve complex tasks. Also, AG2 smooths the way to integrate human oversight and input into agent workflows allowing more interactive and context-aware human handoff.
This article discusses the growing relevance of AI agentic systems and provides a guide on building such a framework using AG2 and FastAPI. It outlines the necessary tools, installation processes, and example implementations for setting up agentic interactions and exposing the system via an API. The article also includes practical instructions for testing the API using Postman, illustrating how dynamic conversations among AI agents can be orchestrated to deliver varied content like news updates.
Read the full blog for free on Medium.
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