Built with Open reimplementations

Decis

Self-hosted, Jev-compatible decision-model API — one /v1/systemone endpoint, open weights (Laya, kev), one Docker image per engine.

11 ★ on GitHub

What it is

One API to run all light-weight decision models.

Getting started

From the README:

git clone https://github.com/chaitin/Decis && cd Decis
cp .env.example .env                                # set DECIS_API_KEY
docker compose -f docker-compose.yml up -d --wait    # engine on :8000, games on :8080

Where the decision sits

Decis 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, laya-typed-decisions, laya-multilingual, laya-typed-decisions, laya.

How active it is

Created 2026-09-22, last pushed 2026-10-06, 11 stars and 2 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.