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CrewAI

Free tier

The open platform that accelerates enterprise agent adoption at scale

Free tier available·All audiences·Powered by Multi-LLM (model-agnostic)·API available·Open source

Key strengths

Used by 63% of the Fortune 500Supports no-code visual editor and code-first Python APIRole-based multi-agent orchestration with deterministic workflowsFull observability with real-time LLM/tool call tracing and cost accountingContinuous agent improvement via automated training and multi-LLM testing
Free tier + paid plans
United States
Founded 2023
Self-hostable

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CrewAI is a model-agnostic, open-source agent orchestration framework that supports both no-code and code-first multi-agent workflow construction. Its Control Plane sits in the execution path of every workflow, providing real-time tracing of LLM calls, tool calls, and memory reads with full cost accounting. The platform features RBAC, immutable audit trails, human-in-the-loop approval gates, and runtime hooks for PII redaction and policy enforcement. It integrates with leading AI observability platforms (Arize, Galileo, DataDog, Patronus) and supports multi-LLM testing and runtime model swapping for continuous optimization.

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