# Jev — free typed-decision endpoint (no key)

Jev (TypeSafe AI) answers typed questions about a piece of text. It returns
probabilities, never prose. Cheap and fast (~0.4 s). Thai and English both work.

## Quick (GET, one question)
https://jev.wker.dev/?state=TEXT&ask=QUESTION                     -> yes/no probability
https://jev.wker.dev/?state=TEXT&ask=QUESTION&choice=a,b,c        -> pick one option
Optional: yes=… no=… (what yes/no mean), c.OPTION=… (describe an option).
URL-encode the values. Example:
https://jev.wker.dev/?state=%E0%B9%81%E0%B8%AD%E0%B8%9B%E0%B8%84%E0%B9%89%E0%B8%B2%E0%B8%87&ask=complaint%3F

## Full (POST JSON, many questions at once)
POST https://jev.wker.dev/
{"state": "text or JSON object",
 "questions": {
   "kind":   {"type":"choice","instructions":"What kind of message?",
              "criteria":{"complaint":"unhappy, a problem","inquiry":"asks for info","praise":"thanks"}},
   "urgent": {"type":"noul","instructions":"Must we reply within 1 hour?",
              "criteria":{"true":"customer is losing money now","false":"can wait"}},
   "tone":   {"type":"score","instructions":"How angry?",
              "criteria":{"1":"calm","3":"annoyed","5":"furious"}}}}

## Response
{"model":"jev-1.13.0","answers":{
  "kind":{"type":"choice","choice":"complaint","probabilities":{...},"confidence":0.9},
  "urgent":{"type":"noul","noul":0.74},
  "tone":{"type":"score","score":3.4,...}}}
- noul = probability the answer is yes (0-1).
- choice: branch on "confidence", not on the top probability.
- The wording of criteria changes the numbers; keep it fixed when you compare.

## Limits
Up to 10 questions per call, 12000 characters of state, fair-use rate limits.
Do not send private or customer data: text passes through Cloudflare and TypeSafe.
CORS is open, so browser apps and local HTML files can call it directly.