VerdictKit helps developers explore decision models for agent workflows. Its independent Jev playground accepts text or JSON and supports Choice classification, ordered Score questions and Noul yes/no probabilities. Inspect request and response JSON, try support-ticket and tool-selection examples, and read practical guides to API integration, limitations and System One models. Demo previews are free; live evaluations have trial limits and paid plans. VerdictKit is not affiliated with TypeSafe AI.