How do I install it if NuGet has nothing?

Clone the repo and add a project reference to the client project, or build a local package with dotnet pack and add the output folder as a package source. A plain package install will not find it yet.

How should I gate on the answers?

Gate Choice and Score with IsConfident at a threshold matched to the action, since confidence reflects how peaked the distribution is. Gate Noul on its probability directly, treating near-0.5 as genuinely uncertain rather than medium yes.

What happens on 429 or 529?

Rate-limit and overload responses are retried automatically with exponential backoff honoring Retry-After, up to the configured MaxRetries. Auth and validation failures surface immediately as typed exceptions with status and body.

Why not put the key in the mobile client?

Do not. The guidance is to keep the key server-side and reuse one thread-safe client, injecting a custom handler only for offline tests. Tune a stricter bar for consequential actions than harmless ones.

What does the client target and depend on?

net8.0, with no runtime dependencies: it is built only on System.Net.Http and System.Text.Json against the public endpoint at api.typesafe.ai, and it is an unofficial SDK. One request can batch Choice, Score and Noul, with independent questions evaluated in parallel.

What do the three answers carry?

ChoiceAnswer carries Choice, per-option Probabilities and Confidence (1 to 255 options); ScoreAnswer carries Score, per-level Probabilities, Legend and Confidence (2 to 10 ordered levels); NoulAnswer carries a Probability from 0 to 1 and no confidence. Fetch with GetChoice, GetScore or GetNoul, or pattern-match the indexer.

How do I configure and test it offline?

JevClientOptions sets ApiKey, Model (jev-latest), Timeout (30 seconds), MaxRetries (3), an optional BaseUrl whose path prefix is kept, a custom HttpMessageHandler for offline tests and a TimeProvider to drive retry waits from a fake clock. The client is thread-safe, so create one and reuse it.

CommunityJev Repos & SDKs

Jev Dotnet

Dependency-free .NET client for Jev targeting net8.0, sending state plus Choice, Score, and Noul questions and returning typed answers with confidence for threshold gating.

See highlights

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Stars: 1
Language: C#
License: MIT
Published by: Community
Author: CMaintz
Last verified: Oct 2026

CMaintz/jev-dotnet

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Unofficial .NET SDK for TypeSafe AI's Jev System One model. Typed Choice/Score/Noul judgments with calibrated confidence, zero dependencies.

Forks: 1
Last pushed: Updated Oct 2026

Repo stats from the GitHub API, cached Oct 2026.

About this project

A small, dependency-free .NET client for TypeSafe AI's Jev, a "System One" model that returns typed judgments instead of free text. You send a piece of state and a set of typed questions; you get back typed answers with calibrated confidence, which your code can act on directly.

Quoted from the project's README. Read the full README.

Tagscommunity github

Works forJev for Scoring

Used inJev for Software & DevTools

Languages: C# / .NET

Highlights

Built only on System.Net.Http and System.Text.Json against the public TypeSafe endpoint; unofficial build.
One request can batch Choice, Score, and Noul together, with independent questions evaluated in parallel.
Typed exception hierarchy maps auth, validation, rate-limit, and overload, retrying the retryable ones.
Thread-safe client reused across calls, with key, model, timeout, retries, base URL, and handler options.

Watch out

Not yet on NuGet so it must be referenced from source or a local pack; Noul carries no confidence and thresholds must be tuned per action severity. Copy reviewed against the repository README on 2026-10-04, not from running it.

Questions about this entry

Short answers drawn from the linked project or page.

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