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Agency Swarm

Python framework for multi-agent applications where agents with defined roles talk through explicit flows, built on the OpenAI Agents SDK.

Harness by VRSEN

IndexedMIT★ 4,614
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pip install agency-swarm

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About

Agency Swarm builds multi-agent applications on the OpenAI Agents SDK and Responses API. Agents are defined with roles, instructions and Pydantic-validated tools, and they communicate through a send_message tool limited by communication flows set on the Agency. Conversation threads can be saved and loaded through callbacks, which gives persistence across sessions. The README lists OpenAI models natively and Anthropic, Google Gemini, xAI Grok and Azure OpenAI through LiteLLM.

Use cases: agent-orchestration

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Fact sheet

Languages
PythonREADME
Packages
agency-swarm (pypi)README
Multi-agent
YesREADME
Orchestration
otherREADME
Memory
short-term, long-termREADME
Model providers
openai, anthropic, google, xai, azure-openaiREADME
Maturity
StableREADME

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

Alternatives

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

Signals

Stars
4,614
Forks
1,057
Open issues
3
Weekly downloads
757
Last commit
Oct 21, 2026 (6 days ago)
Last release
Aug 3, 2026 (2 months ago)
Last package publish
Aug 3, 2026 (2 months ago)

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

Details

Packages
pypi agency-swarm
License
MIT
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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Cite this page

Agency Swarm. Agent Mart. https://agentmart.dev/harnesses/agency-swarm (last updated 2026-10-24)