agentFast vs CrewAI: What's the Difference?
agentFast and CrewAI are not competitors — they sit at different layers. CrewAI is an orchestration framework for role-based agent crews: it decides which agent does what, and how tasks hand off. agentFast is the production layer that wraps a crew — memory, tools, observability, guardrails, durable human-in-the-loop, and evals. You run CrewAI through agentFast, not instead of it.
Side by side
| CrewAI | agentFast | |
|---|---|---|
| What it is | Role-crew orchestration (OSS) | Production layer + working agents (source-available) |
| Crews, tasks, hand-offs | ✓ (its core strength) | Uses CrewAI for this |
| Memory (vector + episodic + scratchpad) | Basic | ✓ Three tiers + compaction |
| 50 MCP tools | Bring your own | ✓ Bridged as real BaseTools |
| Observability + cost tracing | Bring your own | ✓ Included |
| Guardrails (PII, safety, rate limits) | Bring your own | ✓ Included |
| Durable human-in-the-loop | Bring your own | ✓ Task-level checkpoint, exactly-once |
| Evals in CI | Bring your own | ✓ Included |
So do you need agentFast if you have CrewAI?
Only if you'd rather not spend two to four weeks building the production layer around your crew. CrewAI gets your agents talking to each other; agentFast is what makes the result safe to put in front of customers. See how it plugs in on the CrewAI integration page, or, if you haven't picked a framework, compare LangGraph vs CrewAI vs a vanilla loop.
agentFast is the production layer — memory, 50 tools, observability, evals, guardrails, human-in-the-loop — for LangGraph, CrewAI, the Claude & OpenAI Agent SDKs & Vanilla. Own it for life.
Get agentFast — from $89