OPEN SOURCE · CURATED REPOSITORIES

Jev GitHub Projects.

Curated Jev SDKs, tools, demos, integrations, benchmarks, and research projects. Repository metrics come from GitHub; titles, summaries, and categories are editorial.

750 projects
13 projects
gbessegbesse/jev-rerank-server
API serverDeveloper toolsJavaScript

Jev Rerank Server

A drop-in rerank API server powered by TypeSafe AI's Jev model, compatible with Cohere, Jina, and Voyage rerank protocols for RAG stacks.

001MIT
dtunaidtunai/cu-Jev
API serverDeveloper toolsC

cu-Jev: CUDA-native Jev-compatible System One decision engine

Implements a Jev/System One-compatible decision inference API with a CUDA engine, official SDK drop-in usage, runnable examples, and reproducible benchmarks.

300Apache-2.0
m0rphtailm0rphtail/papaya
API serverDeveloper toolsPython

Papaya: Local TypeSafe System One API for ARM

A TypeSafe-compatible System One API running on Raspberry Pi, powered by llama.cpp Q8 and a torch decision head, 4.8x faster than the official SDK with identical decisions.

000Apache-2.0
9pings9pings/notjev
API serverDeveloper toolsJavaScript

NotJev: A Fast Jev-Compatible Decision Server

Model-agnostic Jev-compatible server offering fast decisions via single-token logprobs, works with any OpenAI-compatible endpoint.

1800Apache-2.0
pambrosepambrose/laya-server
API serverDeveloper toolsPython

Laya Server: Jev API-compatible implementation

A proof-of-concept server implementing TypeSafe's Jev API using local Laya checkpoints, verified against the real SDK.

100Apache-2.0
franckverrotfranckverrot/lev
API serverScientific researchPython

lev: A Jev-style decision model based on LFM2.5-350M

A decision model replicating TypeSafe Jev's architecture, compatible with the System One API via typesafe-sdk; includes demo, evaluation, and training scripts.

100Apache-2.0
jev-skillsjev-skills/openjev-multimodal
API serverDeveloper toolsPython

OpenJev Multimodal: Local Jev-compatible SystemOne API

OpenJev Multimodal is an independent, open-source local implementation of a Jev/SystemOne-compatible API using Qwen and llama.cpp/Metal. It provides Noul, Choice, and Score primitives, vision input, a playground, examples, and small-sample benchmarks.

100MIT
kingfskingfs/Decis
API serverDeveloper toolsPython

Decis: A lightweight decision-model API server compatible with Jev/System One

Decis implements TypeSafe's System One API contract, is compatible with Jev's /v1/systemone endpoint, works with the official typesafe-sdk, and can run open decision models such as Laya and kev.

000Apache-2.0
quanglizquangliz/dan
API serverDeveloper toolsPython

dan: Jev-compatible System One model serving engine

dan is a Python library and server that turns any open-weight causal LM into a System One model with a Jev-compatible API, reading label-token probabilities in a single prefill. It includes calibration and LoRA training tools.

000
rcarmorcarmo/go-system-one
API serverDeveloper toolsGo

Go System One: A native Go implementation of Jev

A native Go runtime for Jev/System One decisions using Gemma, supporting Noul, Choice and Score, with benchmarks and a Web playground.

300MIT
1Panel-dev1Panel-dev/laya-server
API serverDeveloper tools

Laya Server

A self-hosted API and web interface for Laya's structured decision models, compatible with the TypeSafe Jev API format.

300GPL-3.0
ekzhangekzhang/openjev-sglang
API serverDeveloper toolsPython

OpenJev SGLang

Jev-compatible API endpoint based on open models (prefill-only), implementing TypeSafe Jev/System One evaluation endpoints with Qwen3.6-35B-A3B on SGLang.

277352