What is the jev_elixir library?

A small, idiomatic Elixir interface for making typed decisions with Jev. Application-level functions like Jev.ask?/2 and Jev.analyze/3 sit in front, while provider adapters handle the external API wire format.

Add {:jev_elixir, "~> 0.1.0"} to your deps, then configure the provider and API key at runtime, for example provider: :typesafe with api_key: System.fetch_env!("TYPESAFE_API_KEY"). Runtime config keeps the key out of compiled releases.

How does a boolean decision work?

Jev.ask?/2 returns a real boolean, so it drops straight into a case expression or a Phoenix controller. The threshold is the minimum probability of yes required to return true, and it defaults to 0.5.

How do choice and score differ?

Choice selects one supplied option and returns it with TypeSafe's probability, for example {:technical, 0.94} for a ticket routed to a team. Score evaluates ordered levels and returns a weighted score and confidence, such as {1.82, 0.88} for urgency.

Can several questions be asked at once?

Yes. Jev.analyze/3 sends every question with the same state in one provider request, mixing boolean, noul, choice and score questions and returning a map of answers.

What should I know about the OpenRouter path?

The adapter deliberately uses the Decisions endpoint rather than /chat/completions, posting to https://openrouter.ai/api/alpha/decisions with typesafe/jev-1.13 by default. The README warns the Decisions API is alpha, so its contract may change.

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Jev for Elixir — elue-dev

A small, idiomatic Elixir client for Jev: Jev.ask?/2 returns a real boolean, choose/3 picks among supplied options, score/3 rates ordered levels, and analyze/3 sends several typed questions in one provider request.

See highlights Open github.com

Stars: 10
Language: Elixir
License: MIT
Reading time: 2 min
Published by: Community
Author: elue-dev
Last verified: Oct 2026

elue-dev/jev_elixir

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jev_elixir is a small, idiomatic interface for making typed decisions with Jev. It exposes application-level functions such as Jev.ask?/2 and Jev.analyze/3, while provider adapters handle the external API wire format. The first release supports TypeSafe's System One API and OpenRouter's Decisions API. Both providers support all three System One qu

Forks: 2
Last pushed: Updated Sep 2026

Repo stats from the GitHub API, cached Oct 2026.Homepage

This is one of several Jev listings for the same project. The canonical entry is Jev for Elixir — dannote.

Tagscommunity catalog-import madewithjev elixir openrouter sdk

Works forJev for Classification Jev for Routing Jev for Scoring

Used inJev for Software & DevTools

Languages: Elixir
Platforms: API OpenRouter
Capabilities: Open sourceRequires API key

Highlights

Provider adapters cover TypeSafe's System One API and OpenRouter's Decisions API, both with Noul, Choice and Score.
ask?/2 returns a boolean with a configurable yes threshold (default 0.5), handy in case expressions or Phoenix controllers.
Runtime configuration keeps the API key out of compiled releases; per-call options can override provider, model, endpoint or timeout.
The OpenRouter adapter posts to /api/alpha/decisions using typesafe/jev-1.13 by default.
Choice options may be a map with descriptions when category names alone are ambiguous.

Quickstart

elixir

def deps do
  [
    {:jev_elixir, "~> 0.1.0"}
  ]
end

Watch out

Grounded on a truncated README and GitHub metadata captured 2026-10-15; the analyze/3 example is cut mid-result, so only its documented shape is described here. The README flags that OpenRouter's Decisions API is currently alpha, so its wire contract may change.

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