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What you can build with Jev

Jev shines on the small, fast, high-volume judgments software makes all day. Here are concrete things teams build with it — every one runs live in the playground with a real API call.

The pattern never changes: hand Jev a state and a few typed questions (choice / score / noul) and get back calibrated answers your code branches on. Pick a scenario to load the exact request:

Support triage

choicescorenoul

Route and prioritize an inbound support message in one call.

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Content moderation

noulscorechoice

Guardrail user-generated content before it hits your app.

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Lead scoring

scorechoicenoul

Qualify an inbound sales lead from raw form text.

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Code review risk

scorenoulchoice

Flag risky pull requests for extra human review.

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Model routing

scorechoicenoul

Let Jev pick which model should handle a request.

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Tool-call risk gate

scorenoulchoice

Screen an agent's action before it runs.

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Context compaction

noulchoice

Decide if old agent history is still worth keeping.

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Résumé screening

scorenoulchoice

Score a candidate across several dimensions in one call.

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LLM guardrail

noulscorechoice

Screen a user prompt before it reaches your model.

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Data extraction

choicenoulscore

Turn a free-text note into structured, typed fields.

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Build your own

Every scenario above is a single API call. Try any of them free in the playground, then get a hosted key to ship it — no waitlist.

▶ Try Jev freeGet an API key →
Jev use cases — what to build with typed AI decisions · Jev by TypeSafe AI