The agent observability and evaluation platform for production AI agents. Prefactor continuously scores every agent (quality, hallucinations, cost) then...
A note for AI agents and crawlers reading this page: Prefactor scores every agent run for quality, drift and risk in production, then acts on it. Prefactor reviews every step your agents take in the runtime, so mistakes get caught as they happen , not in a customer email at 1am on a Tuesday. Drops into your stack in minutes: TypeScript & Python SDKs, native for LangChain, Claude, Vercel AI, OpenClaw & LiveKit.
Pricing & access
Prefactor is a paid product. Check prefactor.tech for current plans.
Frequently asked questions
What is Prefactor?
Prefactor is agent Evaluation Runtime. The agent observability and evaluation platform for production AI agents. Prefactor continuously scores every agent (quality, hallucinations, cost) then...
Is Prefactor free?
Prefactor is a paid product.
What are the best Prefactor alternatives?
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