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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Install

From the package registry. Read the repository before you give any tool access to your data.

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 (9 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
Repository: github.com/VRSEN/agency-swarm
Website: agency-swarm.ai/
Docs: agency-swarm.ai/
First seen: Oct 24, 2026
Last checked: Oct 24, 2026
Source: README Docs github-graphql

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Cite this page

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