head to head · open source
Prefect vs agent-framework
Prefect has 23,882 GitHub stars, 2,527 forks, 858 open issues and last shipped today. agent-framework has 13,604 stars, 2,344 forks, 617 open issues and last shipped 2 days ago. Prefect leads on adoption by 76% (23,882 vs 13,604 stars). Prefect is written in Python under Apache-2.0; agent-framework is written in Python under MIT. Prefect has attracted 11% as many forks as stars, agent-framework 17%. Prefect was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (orchestration, python), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Prefect | agent-framework | |
|---|---|---|
| GitHub stars | ★ 24K | ★ 14K |
| License | Apache-2.0 | MIT |
| Written in | Python | Python |
| Last push | 2026-09-20 | 2026-09-18 |
| Forks | ⑂ 2.5K | ⑂ 2.3K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Prefect if
- You weight community size — 24K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick agent-framework if
- You want the agent-framework feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and agent-framework fits your workflow better
About Prefect
Prefect is an open source, Python native workflow orchestration framework that lets data and machine learning teams turn ordinary Python scripts into scheduled, resilient, observable production pipelines.
read the full Prefect overview →
About agent-framework
Microsoft Agent Framework is an open, MIT licensed, multi language framework for building, orchestrating and deploying production grade AI agents and multi agent workflows in Python and .NET, aimed at teams moving agents from prototype to production.
read the full agent-framework overview →
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Frequently asked questions
Is Prefect or agent-framework more popular?
Prefect has 23,882 GitHub stars and agent-framework has 13,604. Prefect has the larger community by that measure.
Are Prefect and agent-framework free?
Both are open source. Prefect is licensed under Apache-2.0 and agent-framework under MIT. Neither carries a licence fee.
What is the difference between Prefect and agent-framework?
Prefect is written in Python and agent-framework in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Prefect or agent-framework?
Choose Prefect if you want the larger community (23,882 stars) or its Apache-2.0 licence terms. Choose agent-framework if its feature set, stack or MIT licence fits better. Both are self-hostable.