Optio is an API for decisions, not prose. You send a state (text, an array of strings, or JSON) plus up to eight named questions, and each answer comes back typed: one option from a list you wrote (choice), a position on a scale you defined (score), or the probability that a statement is true (yes/no). Every answer carries a probability, so your code can branch, threshold, or hand off to a person. Typical uses: support-ticket triage, refund-policy checks, model routing, content moderation, lead scoring, and a risk gate in front of agent tool calls. Try it in the free browser playground with no signup, then call the same /api/v1/systemone endpoint. New accounts get 5 free credits. Credit packs are one-time and never expire. Optio is an independently operated gateway for calling Jev and is not affiliated with TypeSafe.