crewAIInc/crewAI

What is it?

Key features

• 01Role-based agents with goals, backstories, tools, and memory collaborate inside Crews.
• 02Event-driven Flows with shared state, conditional branching, and routing decorators.
• 03Sequential and hierarchical process modes for coordinating tasks.
• 04Project scaffolding, installation, and execution through the crewai CLI.
• 05Connects to OpenAI and local models such as Ollama and LM Studio.
• 06MCP and A2A support for agent integrations.

Use cases

• Automating multi-step research and report writing with specialized agents.
• Building production workflows that mix LLM calls with deterministic Python business logic.
• Prototyping agent teams that delegate subtasks and validate each other's output.
• Adding human review steps and structured outputs to AI-driven processes.

Quick start

1. 1

   Check that Python is between 3.10 and 3.14

   python3 --version
2. 2

   Run the official uv install script from the README (download and pipe to shell)

3. 3

   Install the CrewAI CLI

   uv tool install crewai
4. 4

   Create a new crew project

   crewai create crew <project_name>

Things to know

• !Requires Python >=3.10 and <3.14.
• !Example crews call a hosted LLM such as openai/gpt-4o, so you need your own model API key set in the project's .env file.
• !On Windows, the chroma-hnswlib dependency may fail to build without Visual Studio Build Tools.

Topics

FAQ

What is crewAI?

Open-source Python framework for orchestrating role-based autonomous AI agents (Crews) and event-driven workflows (Flows). CrewAI is a Python framework for building multi-agent systems, where each agent has a defined role, goal, and backstory and can use tools, memory, and knowledge sources. Agents are grouped into Crews that divide work through tasks and can run sequentially or under a hierarchical manager process.

Is crewAI free to use? What license does it have?

crewAI is open source under the MIT license. Check the license terms before using it in commercial products.

Is crewAI still maintained?

Actively maintained. The last commit to crewAI was on Oct 20, 2026.

What can I use crewAI for?

Automating multi-step research and report writing with specialized agents. Building production workflows that mix LLM calls with deterministic Python business logic. Prototyping agent teams that delegate subtasks and validate each other's output. Adding human review steps and structured outputs to AI-driven processes.

How do I install crewAI?

Check that Python is between 3.10 and 3.14: python3 --version Run the official uv install script from the README (download and pipe to shell) Install the CrewAI CLI: uv tool install crewai Create a new crew project: crewai create crew <project_name>

Where can I get crewAI?

The source code and installation instructions are on GitHub: https://github.com/crewAIInc/crewAI