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typesafe-sdk-java

Community Java SDK for Jev, TypeSafe's System One model: typed questions in, typed answers with calibrated probabilities out. Java 17+, Spring Boot starter (unofficial)

12 ★ on GitHub

What it is

TypeSafe SDK for Java: a Jev client for the JVM

The homepage listed on the repository, docs.typesafe.ai, puts it like this: Jev is TypeSafe's flagship model and the first System One model. Send state and typed questions; get structured answers your code can use directly.

Getting started

From the README:

implementation("io.github.premo-cloud:typesafe-sdk:0.6.0")

Where the decision sits

typesafe-sdk-java calls the hosted decision API rather than running its own weights. That keeps the project small and means its behaviour moves whenever the vendor ships a new model version. It also means an API key and a network round trip sit in the path of every decision.

Models it references: Jev.

How active it is

Created 2026-09-18, last pushed 2026-10-21, 12 stars and 5 forks when we read it on 2026-11-02. Everything in this category is weeks old at most, so a stale push date means something different here than it would on a mature project. Check the repository before you depend on it.

Find out what your data actually supports

We turn your historical decisions into a frozen test set, then tell you which model, which threshold, and how much of it you can safely automate.