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OpenAI Agents SDK

Python SDK for multi-agent workflows with handoffs, guardrails, sessions and built-in tracing, usable with OpenAI and other LLMs.

Harness by OpenAI

IndexedMIT★ 30,260
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Install

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pip install openai-agents

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About

The OpenAI Agents SDK defines agents as LLMs configured with instructions, tools, guardrails and handoffs to other agents. It also covers sandbox agents, realtime and voice agents, human-in-the-loop steps, session-based conversation history and tracing of runs. It works with the OpenAI Responses and Chat Completions APIs and with other LLMs. It is the production-oriented successor to OpenAI's earlier Swarm experiment.

Use cases: agent-orchestration

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Fact sheet

Languages
PythonREADME
Packages
openai-agents (pypi)README
Multi-agent
YesREADME
Orchestration
handoffsREADME
MCP support
Built inREADME
Streaming
Yesopenai.github.io
Memory
short-termREADME
Human in the loop
YesREADME
Observability
built-in tracingREADME
Maturity
Stableopenai.github.io

Facts extracted by Claude Sonnet 5.5 from the linked sources on Oct 24, 2026; reviewed Oct 24, 2026. Wrong fact? Tell us.

Alternatives

Frameworks for the same language with a similar way of orchestrating agents.

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Signals

Stars
30,260
Forks
4,931
Open issues
18
Weekly downloads
4,509,256
Last commit
Oct 22, 2026 (4 days ago)
Last release
Oct 15, 2026 (12 days ago)
Last package publish
Oct 15, 2026 (12 days ago)

From GitHub (fetched Oct 24, 2026) and the package registry.

Details

Packages
pypi openai-agents
License
MIT
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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Cite this page

OpenAI Agents SDK. Agent Mart. https://agentmart.dev/harnesses/openai-agents-sdk (last updated 2026-10-24)