What is crewai?

CrewAI is a Python framework that lets you build teams of AI agents that work together on complex tasks. Instead of relying on a single AI to do everything, you assign different agents specific roles, goals, and backstories, and they collaborate to get a job done. Think of it like assembling a virtual project team where each member has a specialty, and they hand off work to each other automatically until the task is complete. The framework offers two main ways to organize work. "Crews" are teams of autonomous agents that make their own decisions about how to delegate tasks and collaborate. You define who the agents are and what they need to accomplish, and they figure out the back-and-forth. "Flows" give you more structured, step-by-step control over how things run, which is better for production scenarios where you need predictable, event-driven logic. You can combine both approaches, using Flows to manage the overall process and Crews to handle the creative, open-ended parts. A practical example from the project involves a researcher agent and a reporting analyst agent. The researcher digs up relevant information on a topic, then passes its findings to the analyst, who turns that research into a formatted written report. You could apply this same pattern to things like planning trips, analyzing stocks, or writing job descriptions, any multi-step task where different kinds of work build on each other. This would appeal to developers and technical founders who want to automate multi-step business processes without chaining together a long list of manual API calls. The project emphasizes that it was built from scratch and doesn't depend on other popular agent frameworks, which keeps it lightweight. There is also an enterprise layer available with monitoring, security features, and deployment options for organizations that need those capabilities. Over 100,000 developers have gone through their community certification courses, which suggests a fairly mature ecosystem around the tool.