OpenAI Agents SDK

OpenAI's framework for multi-agent workflows and tool use

Live preview of openai.github.io/openai-agents-python

Overview

OpenAI Agents SDK is the successor to Swarm and the official way to build multi-agent systems on GPT models. It introduces a clean primitive, the Agent, plus handoffs between agents, structured outputs, guardrails, and built-in tracing through the OpenAI dashboard.

We reach for this when a workflow needs more than one specialized agent (a planner, a researcher, a writer) and we want the routing logic to live in plain code instead of a prompt-engineering puzzle.

Tracing is the killer feature: every tool call, handoff, and decision is visible in the OpenAI dashboard, which makes debugging agents tractable.

Key Features

Agents

First-class primitive with instructions, tools, and handoffs

Handoffs

Route tasks between specialized agents declaratively

Guardrails

Validate inputs and outputs before they hit the model

Tracing

Every step recorded in the OpenAI dashboard

Structured Outputs

Type-safe responses with Pydantic schemas

Voice Support

Build real-time voice agents on top of the same primitives

Why We Recommend OpenAI Agents SDK

The cleanest mental model for multi-agent systems we've used. Handoffs are explicit, tracing is built in, and the API is small enough to keep in your head.

Quick Info

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