Open-source alternatives to CrewAI

CrewAI is itself an open-source (MIT-licensed) Python framework for orchestrating multi-agent workflows, with a separate paid CrewAI Enterprise (AMP) product for managed deployment and monitoring. Teams that want to stay entirely within the free, self-hosted tier, or that prefer a different agent orchestration model, look at what else is available.

If you want persistent, stateful agents that retain memory across sessions rather than task-based crews, Letta is built specifically around that model. If your goal is a single autonomous agent that handles end-to-end tasks rather than orchestrating a team of role-based agents, Suna and Multica take that more general-purpose approach.

FAQ

Is there a free, open-source alternative to CrewAI?

Yes. Letta, Suna, and Multica are all open source and free to self-host.

What's the best open-source alternative to CrewAI?

Letta is the better pick if persistent agent memory across sessions is the priority. Multica is the better pick for a broad, integration-heavy general-purpose agent framework.

What are the top open-source alternatives to CrewAI?

Browse all open-source alternatives to CrewAI above, or explore the full Developer Tools category for more options.