The Agent ExaminerIndependent Review Authority
SDKOpen sourceNot yet hands-on tested

OpenAI Agents SDK

Founded 2025

Build agentic AI apps in a lightweight, easy-to-use package with very few abstractions.

What it is

The OpenAI Agents SDK is a lightweight, open-source framework for orchestrating single- and multi-agent workflows around Agents, Handoffs, Guardrails, and Sessions, with built-in tracing. It is the successor to OpenAI's experimental Swarm SDK.

At a glance

7/7 facts sourced
Pricing
The SDK is free and open source (MIT); you pay OpenAI (or the chosen provider's) API/token costs.source ↗
Hosting model
A self-deployed library (Python, with a TypeScript version too) that runs in your own process and infrastructure.source ↗
Memory & state
Sessions provide automatic conversation-history management across agent runs — a persistent working-context layer.source ↗
MCP support
Nativesource ↗
Integrations
Built-in tools (web search, file search, computer use via the Responses API), function tools, MCP servers, agent handoffs, and tracing/observability.source ↗
Model providers
OpenAI-first (uses the Responses API by default for OpenAI models) but provider-agnostic — supports 100+ other LLMs via LiteLLM and any-llm adapters.source ↗
Open source
Yessource ↗
3.8of 5

Editorial scorecard

Overall 3.8 / 5

Our opinion — the same 0–5 rubric is applied to every platform, including Alfe. See the rubric.

Developer experience4/5
Pricing transparency & value5/5
Scalability3/5
Memory & state3/5
Integrations4/5
MCP nativeness4/5

Strengths

  • Minimal, low-abstraction API with clear primitives (agents, handoffs, guardrails, sessions).
  • Built-in tracing and native MCP support.
  • Free and open source (MIT), and provider-agnostic via LiteLLM.

Trade-offs

  • Optimized around OpenAI's Responses API — non-OpenAI providers go through adapters.
  • Library-only, so you run your own infrastructure.
  • A newer framework (2025) with a fast-moving API surface.

Our take

Editorial opinion — not a hands-on test result

In our opinion, the OpenAI Agents SDK is a solid, unopinionated choice for teams building agentic workflows in Python who value a small API surface and good tracing. It is most frictionless if you are already on OpenAI models; other providers work through adapters. As with any library, memory beyond Sessions and production infrastructure are yours to own.

FAQ

Can it use non-OpenAI models?
Yes — via LiteLLM and any-llm adapters, it supports 100+ models, though OpenAI models are the default path.
Does it manage conversation memory?
Yes — Sessions automatically manage conversation history across runs.

Compare OpenAI Agents SDK

Sources

The Agent Examiner editorial · last updated 2026-07-01. Facts are drawn from each vendor’s own public materials; scores are our editorial opinion (methodology).

Product and company names are trademarks of their respective owners and are used here only to identify the products under discussion.