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Jev directory

Jev Repos & SDKs

362 curated Jev entries. Client libraries, adapters, and source code you can build on with Jev, from the official Python and TypeScript SDKs to community ports in Go, .NET, and PHP.

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  • Repos & sites341
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All 362 Jev Repos & SDKs

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Showing 145–192 of 362 resources

guardrail-chatbot-jev
1GitHub stars
Content safety for AI chatbots in Python, TypeScript and Go: user input, bot replies and conversation checks run over one shared policy file with Jev, returning one decision your code can act on.
Jev Repos & SDKs#community#catalog-import#logicrw
Communitytaman-spirit/guardrail-chatbot-jevPython
JEV-Local
1GitHub stars
A lightweight Python engine that mimics Jev's structured decisions on local LLMs via Ollama, vLLM or llama.cpp: choice, score and noul questions come back as JSON with probabilities and confidence, plus an OpenAI-compatible gateway.
Jev Repos & SDKs#community#catalog-import#logicrw
Communitytapsin/jev-localPython
JevLang
1GitHub stars
A policy engine for LLM decisions: declare routes, gates and actions once in TypeScript or Python and every decision comes back validated, explainable, replayable and audited. The model answers only declared questions — application code owns the branch.
Jev Repos & SDKs#community#catalog-import#logicrw
Communitytimmikeladze/jevlangJavaScript
Intent Routing with TypeSafe's JEV Model
1GitHub stars
Python intent classification for customer support: Jev picks from twelve intents and returns a confidence score plus a per-intent probability distribution, flagging anything below 0.8 confidence as needing clarification while routing stays configurable downstream.
Jev Repos & SDKs#community#catalog-import#logicrw
Communityviniciusfinger/jev-intent-classificationPython
jev-charactor
1GitHub stars
A modular TypeScript framework for role-playing agents and autonomous game NPCs powered by Jev: principles are authored in natural language, Jev selects eligible actions and communicative intents, and the host applies world effects and composes dialogue. Ships Fog Harbor, a playable 2D AI-town demo.
Jev Repos & SDKs#community#catalog-import#logicrw
Communityyichenbc/jev-charactorTypeScript
jevinf
1GitHub stars
A Jev-kind model inference engine and compatible API server in Python: each candidate path runs as segmented forwards with prefix reuse, and the Jev wire contract is served on top with NanoJev as the wired backend. The README reports 2.57x single-request throughput on MPS at 100% argmax agreement.
Jev Repos & SDKs#community#catalog-import#logicrw
Communityzerodegress/jevinfPython
TypeSafe Java Client
0GitHub stars
A Java 21 client and CLI for the TypeSafe API: send state with Noul, Choice, and Score questions, get typed answers, and optionally run local Clef and Laya models via ONNX Runtime with no API key.
Jev Repos & SDKs#community#catalog-import#cobanov
Communitydfa1/typesafe-javaJava
Vibe SDK
0GitHub stars
A JavaScript package of SDK code built through iterative 'vibing', listed in logicrw's awesome-jev-projects; the repository ships code but almost no documentation.
Jev Repos & SDKs#community#catalog-import#logicrw
Communitydotnetvibecoderz/vibe_sdkJavaScript
Vej
0GitHub stars
A local Jev clone: calibrated noul, choice, and score judgments from small NLI cross-encoders, running in the browser or as a Node server with Jev's request and response shapes.
Jev Repos & SDKs#community#catalog-import#madewithjev
Communitydraeder/vejJavaScript
jev-rag-guard
1GitHub stars
A typed-decision accuracy layer for RAG pipelines that wraps the seam between retrieval and generation with six cheap checks: intent, relevance, clarify, sufficiency, grounding and caveat. Each check returns a calibrated probability you can threshold and log.
Jev Repos & SDKs#community#catalog-import#cobanov
Communityfurkandrms/jev-rag-guardPython
solari-reflex
0GitHub stars
A speed layer for computer use on Solari: each step is one structured observation, one Jev decision and one verified action, with no screenshots in the loop. It drives both browsers and Linux desktops through the same Surface interface.
Jev Repos & SDKs#community#catalog-import#madewithjev
Communityhitakshia/solari-reflexTypeScript
phocinae-server
0GitHub stars
A local FastAPI inference server for the 150M-parameter Phocinae-Largha decision model that speaks the TypeSafe /v1/systemone contract: one POST returns noul, choice and score answers from a single forward pass, serving only 127.0.0.1 and never implementing chat or OpenAI-compatible endpoints.
Jev Repos & SDKs#community#catalog-import#logicrw
Communityphocinae/phocinae-serverPython
TypeSafe AI Go SDK
0GitHub stars
A Go client for TypeSafe AI whose wire format and default retries follow the Python SDK v0.6.0 with a smaller Go-native API: send noul, choice and score questions in one SystemOne call and read typed results, usage counts and the request ID.
Jev Repos & SDKs#community#catalog-import#madewithjev
Communityradixils-dev/typesafe-sdk-goGo
JevGuard
0GitHub stars
A Python library that wraps TypeSafe System One with a deterministic local layer: canonical JSON sorting, SHA-256 fingerprinting with volatile key masking, SQLite caching, neutral escape injection and calibration checks, all on the standard library, with an official MCP server for coding agents.
Jev Repos & SDKs#community#catalog-import#madewithjev
Communityseb4ez/jevguardPython
Interlock
0GitHub stars
A Python capability kernel for untrusted agents that wraps every tool call: detectors, a Jev Noul battery, and policy in code return BLOCK, ASK, or ALLOW, while the LLM holds only canaries and placeholders — real secrets are swapped in at egress for allowlisted hosts.
Jev Repos & SDKs#community#catalog-import#madewithjev
Communitysomoore/interlockPython
jev-trust
Trust middleware for Jev decision APIs: it logs every call, measures calibration in your domain as outcomes arrive, discounts stated confidence to what it is worth there, and signs the log for outside recomputation.
Jev Repos & SDKs#community#catalog-import#yibie
Community
aaazzam/jev
11GitHub stars
A Python decorator that turns a Pydantic model into Jev questions: bool becomes a Noul, a Literal becomes a Choice, and a bounded int becomes a Score, with answers validated back into the model.
Jev Repos & SDKs#community#python#pydantic
Communityaaazzam/jevPython
tab-jev
5GitHub stars
A pre-release Python framework for predictions on mixed text and tabular data: Jev Noul and Score questions turn text columns into numeric features, then a tabular foundation model such as TabPFN learns from labeled rows in context. Offers hosted and fully local backends.
Jev Repos & SDKs#community#tabular#predictions
Communityedamame-labs/tab-jevPython
jev-bisect
0GitHub stars
A Python library that turns Jev into a bisection oracle: it repeatedly asks higher, lower or exactly about the midpoint of a numeric range and returns the answer, turn count and full decision history. Built on the official TypeSafe Python SDK and installable from PyPI.
Jev Repos & SDKs#community#bisection#numeric-search
Communitymkly/jev-bisectPython
AI SDK for Python
192GitHub stars
Vercel's official AI SDK for Python, in public beta: streaming models, agent tool loops, hooks for human approval and structured output, with provider IDs routing through AI Gateway by default. The SDK's evaluation operation and Gateway examples carry Jev as a decision and evaluation provider.
Jev Repos & SDKs#community#sdk#vercel
Communityvercel-labs/ai-pythonPython
FastJev
21GitHub stars
Self-hosted Python SDK and System One-compatible API for runtime-defined Choice, Boolean and Score decisions on pinned open models, across Torch, vLLM, MLX, llama.cpp and WebGPU. Each result records probabilities, token usage, timing, model revision and prompt version, with committed row-level benchmarks.
Jev Repos & SDKs#community#sdk#self-hosted
Communitychengyongru/fastjevPython
JevT++
5GitHub stars
Independent C++20 library for typed, model-backed routing, classification and scoring. Compile-time enum schemas define Choice, Noul, Score and Probability answers with abstention; local Laya inference runs through ONNX Runtime or ggml, and an opt-in remote backend speaks the same typed API with hosted inference.
Jev Repos & SDKs#community#cpp#library
CommunitywiatrM/jevtppC++
SystemOneClient
8GitHub stars
Elixir client for System One decision models -- TypeSafe Jev (default), Cloudflare Clef, OpenRouter's decisions endpoint and any self-hosted /v1/systemone server -- returning typed answers with full probability distributions, retries, telemetry and a no-network stub for tests.
Jev Repos & SDKs#community#elixir#client
Communityschainks/system_one_clientElixir
CloJev
1GitHub stars
Unofficial portable Clojure SDK for TypeSafe System One. It posts state and typed questions to /v1/systemone, lists available models, and returns validated Clojure data with keyword or string answer keys, on a JVM backend or a native Jolt backend.
Jev Repos & SDKs#community#clojure#sdk
Communityantlobach/clojevClojure
RubyLLM
4.5kGitHub stars
Ruby-native AI framework whose RubyLLM::Judge class asks typed judgment questions: a probability that a statement holds, choices or scores, answered by the TypeSafe provider alongside 18 other hosted and local providers under one consistent API.
Jev Repos & SDKs#community#ruby#framework
Communitycrmne/ruby_llmRuby
jev-sdk-go
1GitHub stars
Dependency-free Go 1.24+ client for Jev Noul, Choice, and Score questions: ChoiceOf[T] and ScoreOf[L] return the caller's own types and reject labels the question never offered, with validation before sending, retries that honor Retry-After, OpenRouter support, and eleven tested examples.
Jev Repos & SDKs#community#go#sdk
CommunityHomayoonAlimohammadi/jev-sdk-goGo
decision-gate
2GitHub stars
Pre-1.0 npm library that every Jev request in a loop goes through: it waits for room under 80% of the account's requests-per-minute and tokens-per-second limits, pauses all local callers on 429 for the server's Retry-After, and refuses requests above a per-key daily spend ceiling of USD 0.20 by default.
Jev Repos & SDKs#community#rate-limiting#caching
Communityzachlandes/decision-gateJavaScript
huncho
1GitHub stars
Dependency-free TypeScript SDK that turns Jev Noul, Choice and Score answers into named decisions: enter/exit thresholds with hysteresis, nested decision trees settled in one call, a JSONL journal, threshold replay without inference and Brier calibration.
Jev Repos & SDKs#community#typescript#decisions
Communityedgardcham/hunchoTypeScript
JevSpan
9GitHub stars
Zero-shot named entity recognition library on Jev: text is split at punctuation, candidate windows are offered as one Choice question per entity type, then verified and boundary-polished by further Choice calls. Types are defined in plain words; no training data or GPU is needed.
Jev Repos & SDKs#community#ner#extraction
Communitylzq-0529/jev-spanPython
S1 Ruby
2GitHub stars
Ruby gem that makes System One measurement a language primitive: psi prepares a state, judge/choose/score return calibrated distributions, and ? collapses them for control flow. Ships TypeSafe, protocol (/v1/systemone) and CUA providers behind one interface with its own spec suite.
Jev Repos & SDKs#community#ruby-gem#sdk
Communityinnocentdiaz/s1_rubyRuby
metajev
1GitHub stars
Python library that records each Jev-class decision as the full distribution under a sha256 key of state, question, provider and model, then applies a separate policy. Thresholds, review bands, routing and budgets can change across the recorded history without new model calls.
Jev Repos & SDKs#community#calibration#policy
CommunityYYTbit/metajevPython
Python SDK Changelog
Release notes for the official Python SDK, from the 14 September 2026 public release through the Pydantic migration and the HTTP/2 extra.
Jev Repos & SDKsDocs#official#docs#sdk
Official
JavaScript SDK Changelog
Release notes for the official JavaScript and TypeScript SDK: the 11 September 2026 public release and the Score criteria breaking change.
Jev Repos & SDKsDocs#official#docs#sdk
Official
Python SDK Retries
RetryPolicy for the Python SDK: attempt count, exponential backoff with jitter, which HTTP statuses retry, and a total time budget.
Jev Repos & SDKsDocs#official#docs#sdk
Official
Python SDK Exceptions
The Python SDK error hierarchy: HTTP status classes, rate-limit wait hints, connection and timeout errors, and response-body validation failures.
Jev Repos & SDKsDocs#official#docs#sdk
Official
Python Async Client
AsyncTypeSafeClient: async system_one calls, model listing, per-call retry and timeout overrides, and an optional Pydantic response model.
Jev Repos & SDKsDocs#official#docs#sdk
Official
Python SDK Questions
How the Python SDK types questions: Noul, Choice, and Score as objects or dictionaries, including optional JSON instructions and criteria.
Jev Repos & SDKsDocs#official#docs#sdk
Official
Python SDK Responses
The Python response models: SystemOneResponse groups answers by id, and records the model name, token usage, and request id.
Jev Repos & SDKsDocs#official#docs#sdk
Official
Python SDK Constants
Default settings and environment variable names for the Python SDK, including the API root, model alias, and per-request timeout.
Jev Repos & SDKsDocs#official#docs#sdk
Official
Python Sync Client
TypeSafeClient, the synchronous Python client: ask questions, list models, and set the key, model, retry policy, and HTTP timeout.
Jev Repos & SDKsDocs#official#docs#sdk
Official
Python SDK Common Types
Shared Python SDK types: JSONValue, a nested JSON-like value that may be None, and descriptions built from strings or JSON values.
Jev Repos & SDKsDocs#official#docs#sdk
Official
jev
15GitHub stars
Go Unix CLI that pipes state on stdin into one Jev question — noul, choice, or score — across TypeSafe, Cloudflare, and Vercel providers, printing machine-readable JSON and signaling success by exit code.
Jev Repos & SDKs#community#github
Communitystefafafan/jevGo
typesafe-client
7GitHub stars
Unofficial Go and Rust clients for the System One API covering noul, choice and score questions, with env-based config, retries, typed errors and gateway support.
Jev Repos & SDKs#community#github
Communityhaileyok/typesafe-clientRust
ex_typesafe_ai
3GitHub stars
Idiomatic unofficial Elixir client for the TypeSafe AI API, installed from Hex with typed noul, choice, and score question builders plus supervision-tree support.
Jev Repos & SDKs#community#github
Communityiamtalha-arshad/ex_typesafe_aiElixir
taurus-jev-sdk-go
3GitHub stars
Zero-dependency Go client for the TypeSafe System One API with typed noul, choice, and score questions, strict response validation, and safe concurrent use.
Jev Repos & SDKs#community#github
CommunityKKloudTarus/taurus-jev-sdk-goGo
jev-rs
3GitHub stars
Community Rust client for the TypeSafe API with async and optional blocking clients, typed Noul, Choice, and Score questions, retries, and structured errors.
Jev Repos & SDKs#community#github
Communityabeldzan/jev-rsRust
jev-policy-engine
3GitHub stars
Python policy engine that defines Noul, Choice, and Score rules in YAML with tags, audit mode, and fail-closed handling, usable from a CLI or backend code.
Jev Repos & SDKs#community#github
CommunityBhavinM/jev-policy-enginePython
omarchy-mail
3GitHub stars
Terminal Gmail client for Omarchy where categories are Gmail labels, Jev files confident matches automatically, and a sidebar grades reply clarity, tone, length, next steps, and coverage.
Jev Repos & SDKs#community#github
Communitypetrzpav/omarchy-mailPython

Index of all 362 entries

Start here with the Jev AI model

Featured entries in repos & sdks.

eve
5.6kGitHub stars
A filesystem-first framework for durable AI agents whose auto model router defaults to Jev through Vercel AI Gateway and whose evaluate helper asks typed Choice, Score, and Boolean questions inside tools.
Jev Repos & SDKs#community#typescript#agents
Communityvercel/eveTypeScript
Laya
33.3kGitHub stars
Open multilingual System 1 decision models with published checkpoints for choice, score and noul questions, plus a router that dispatches each request to the right checkpoint in one forward pass.
Jev Repos & SDKs#community#python#open-models
CommunityNandhaKishorM/layaPython
jev-experiments
406GitHub stars
A monorepo of roughly 20 latency-focused demos: moderation firehoses, rerankers, inbox triage, macOS launchers, and closed-loop control simulators, each with p50/p95 telemetry.
Jev Repos & SDKs#community#demos#typescript
Communitydabit3/jev-experimentsTypeScript

Jev AI model articles

Original guides that go deeper on Jev repos & sdks.

All Jev articles
The Open Reimplementations: Local Models That Speak System One
Closed weights have not stopped the ecosystem from rebuilding the shape in the open. API-compatible servers, retrained heads on small models, and inference-time tricks that skip generation entirely.
Jev Repos & SDKs#open-models#research#local
Read article

From the Jev community

Watch walkthroughs, read the threads, and see what builders are posting.

YouTube: Greg Isenberg and Ryan Vogel on the businesses Jev unlocks, and a path in through the Vercel AI Gateway.

YouTube: CJ from Syntax demos browser use, classification, code review, a model router, and a chat bot with no LLM.

YouTube: Ryan Vogel runs Jev on 100 and then 1,000 emails: category, priority, spam, and reply predictions.

Hacker News: Show HN: Ad Spend Guard gates budget before the auction, not the creative after.

Show HN: Gating ad budget with a decision modelRead the thread on Hacker News

Reddit: Reranking rebooking options with a decision model, ranked with reasons.

Hacker News: Pick Verify: a single decision at the warehouse pick station catches confusable picks.

Show HN: Verifying robot picks with a decision modelRead the thread on Hacker News

Hacker News: Decision Index 0.2.1 scores open reproductions of Jev on a frozen suite.

jackbravo4 pointsDecision Index 0.2.1 – 70 open reproductions of TypeSafe Jev's Decision ModelRead the thread on Hacker News

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