LangGraph
Library for building agents as graphs of steps with saved state, pauses for human review and streaming, in Python and JavaScript.
- Open source
- Can run on your own servers
About CrewAI
Python framework for multi-agent work where each agent has a role and goal and a crew of agents shares a list of tasks.
CrewAI is an open-source Python framework for running several agents together. You define each agent with a role, a goal and a short backstory, give it tools, and assign tasks. A crew runs those tasks in order or with a manager agent that delegates work, and each task's output can feed the next.
For work that needs tighter control, CrewAI also offers Flows, which are event-driven pipelines where you decide exactly which step runs when and can call a crew from inside a step. That split lets teams keep open-ended agent work in one place and fixed business logic in another.
The company behind it sells a hosted platform for deploying and monitoring crews, while the framework itself can run anywhere Python runs. Many teams use it for prototypes because a working crew takes little code. Before production, test how often agents loop or repeat work, and set limits on iterations and tool calls.
Details
Open source
YesCan run on your own servers
Yes
Not enough info yet on developer API, works with MCP. Check the tool's own site.
Listing written by WithAutobot, checked 2026-11-04. Report a correction or request removal. Back to open-source agent frameworks.