CrewAI

CrewAI is an open-source framework for orchestrating role-playing, autonomous AI agents. By fostering collaborative intelligence, CrewAI empowers agents to work together seamlessly on complex tasks. Version 1.0 released October 2025 powers 1.4 billion agentic automations across Fortune 500 companies. Features planning agents with reasoning, sophisticated memory management (short-term, long-term, entity, contextual), 100+ built-in tools, and agentic RAG. Used by 60%+ of Fortune 500 with 1.8M+ monthly downloads and 40K+ GitHub stars.