OpenAI Agents SDK for Python is an open-source framework for building agentic applications with a small set of core abstractions. It provides primitives for defining agents, giving them tools, handing work between specialized agents, applying guardrails, and running conversations or workflows while collecting execution traces.

The SDK is designed to support both simple single-agent assistants and more structured multi-agent systems without requiring a large orchestration framework. Developers can combine Python functions and external tools with model reasoning, manage agent handoffs, stream results, and observe how an agent reached an outcome.

The project is useful for Python developers building production assistants, automation systems, research agents, support workflows, and other tool-using AI applications. Its relatively lightweight architecture makes it suitable for teams that want explicit agent primitives and tracing while keeping application logic in ordinary Python code.