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The full directory

All Jev AI model resources

Entries for TypeSafe AI's flagship System One model — official docs and SDKs alongside community clients, tools, and write-ups.

Entries
3,724
Categories
11
Official
102
Community
3,622
Source sites
292
Deep dives
3,724

By format

3724
  • Docs169
  • Repos & sites2965
  • Videos73
  • Posts103
  • Articles344
  • Playgrounds70

Updated

Browse the Jev AI model by category

11 ways into the ecosystem. Each category page leads with its own shortlist of starting points.

Browse the Jev AI model by use case or industry

The same directory, sliced by what you are building and who you are building it for.

Jev use cases13 ways to put Jev to work, from classification and routing to decision gating and evaluation.
Jev industries14 sectors building with Jev, from software and security to healthcare and robotics.

All 3724 Jev AI model resources

Search the full directory, or filter by category and tag.

Showing 1–48 of 322 resources

LangChain
148kGitHub stars
LangChain is the agent engineering platform: an MIT-licensed Python framework from the LangChain team for building agents and LLM applications by chaining interoperable components with third-party model, tool, and vector-store integrations.
Jev Repos & SDKs#community#catalog-import#cobanov
Communitylangchain-ai/langchainPython
Composio
30.6kGitHub stars
Composio is an MIT-licensed SDK monorepo giving AI agents 1,000+ pre-authenticated toolkits with per-user sessions, authentication, triggers, and a sandbox, and it ships TypeScript and Python adapters including one for TypeSafe (Jev).
Jev Repos & SDKs#community#catalog-import#cobanov
Communitycomposiohq/composioTypeScript
Vercel AI SDK
27.4kGitHub stars
The AI Toolkit for TypeScript: Vercel's free, open-source AI SDK for building AI-powered applications and agents, with GitHub topics covering OpenAI, Anthropic, Gemini, React, Svelte, Vue, and Next.js.
Jev Repos & SDKs#community#catalog-import#logicrw
Communityvercel/aiTypeScript
LangChain.js
18.3kGitHub stars
LangChain.js is the TypeScript edition of LangChain, a framework for LLM-powered applications that runs on Node.js, Cloudflare Workers, Vercel and Next.js, Supabase Edge Functions, browsers, Deno, and Bun.
Jev Repos & SDKs#community#catalog-import#cobanov
Communitylangchain-ai/langchainjsTypeScript
OpenChamber
11.8kGitHub stars
OpenChamber is an MIT-licensed workspace built on the OpenCode agent for running and reviewing AI coding work on desktop, web, VS Code, and mobile, with session goals, multi-run comparisons, and private remote access.
Jev Tools & CLIs#community#catalog-import#logicrw
Communityopenchamber/openchamberTypeScript
firstmate
8kGitHub stars
firstmate is an MIT-licensed agent distro that turns one coding agent into a first mate supervising a crew of autonomous agents in git worktrees, handing back finished PRs, approved merges, or investigation reports.
Jev Agents & MCP#community#catalog-import#logicrw
Communitykunchenguid/firstmateShell
Latitude
4.7kGitHub stars
Latitude is an open-source observability platform for AI agents: one line of telemetry captures traces, failing traces group into tracked signals, and fixes are dispatched to coding agents and replayed against real traces.
Jev Tools & CLIs#community#catalog-import#logicrw
Communitylatitude-dev/latitude-llmTypeScript
Vellum Assistant
1.4kGitHub stars
Vellum Assistant is an MIT-licensed personal AI assistant with eight memory types, hourly proactivity, and permission-gated computer use, reachable from macOS, Windows, iOS, web, voice, email, Telegram, Slack, and Twilio.
Jev Tools & CLIs#community#catalog-import#logicrw
Communityvellum-ai/vellum-assistantTypeScript
Kody
808GitHub stars
Kody is an MCP-first cloud for agents, built on Cloudflare Workers, that keeps memory, keys, code, and automations portable across MCP hosts with a compact search-and-execute tool surface instead of a large static catalog.
Jev Agents & MCP#community#catalog-import#logicrw
Communitykentcdodds/kodyTypeScript
AgentiLoop Agent
646GitHub stars
Agent! is a native Swift macOS agent that drives any app through the Accessibility API, codes and builds in Xcode, runs shell commands, and wires in 23 LLM providers plus on-device Apple Intelligence and a Jev guard.
Jev Tools & CLIs#community#catalog-import#logicrw
Communityagentiloop/agentSwift
ReqLLM
597GitHub stars
ReqLLM is an Apache-2.0 Elixir library built on Req and Finch that standardizes LLM requests and responses across providers, exposing 1,205 models across 21 integrations behind one unified API.
Jev Repos & SDKs#community#catalog-import#logicrw
Communityagentjido/req_llmElixir
omg.dev
547GitHub stars
Remote control for coding agents: give Claude Code, Codex, Cursor, OpenCode, Pi and others a task from your phone, and get a notification when the result is ready while your laptop stays closed. Self-hosting is a free MIT install; the hosted version has a free plan and paid plans from $19/mo.
Jev Tools & CLIs#community#catalog-import#logicrw
Communitybennykok/omg.devTypeScript
WrongStack
380GitHub stars
A free, MIT-licensed AI coding agent that reads code, edits files, runs commands and reasons through bugs across a terminal REPL, a full-screen TUI and a browser UI, with visible permission boundaries and durable project memory.
Jev Tools & CLIs#community#catalog-import#logicrw
Communitywrongstack/wrongstackTypeScript
Instructor for PHP
328GitHub stars
A PHP monorepo that adds typed decision APIs on top of structured output, unified inference, retrieval and an agent SDK: the Polyglot Decision API can call the TypeSafe provider and return probabilities for noul questions, alongside OpenAI, Anthropic, Gemini and Ollama drivers.
Jev Repos & SDKs#community#catalog-import#logicrw
Communitycognesy/instructor-phpPHP
OrchestKit
296GitHub stars
A free, open-source Claude Code plugin that adds skills, agents and hooks for review, testing, security and memory: install ork for the stable v9.x line or ork-alpha for v10, which ships daily, then run /ork:setup to scan your repo and recommend skills.
Jev Agents & MCP#community#catalog-import#logicrw
Communityyonatangross/orchestkitTypeScript
pi-fabric
292GitHub stars
A programmable runtime that gives the Pi coding agent one fabric_exec tool: Pi writes a checked TypeScript program that composes core tools, MCP servers and agents into branches and fan-out, executed in an isolated QuickJS sandbox with approvals, budgets and durable coordination.
Jev Agents & MCP#community#catalog-import#logicrw
Communitymonotykamary/pi-fabricTypeScript
JevPilot
224GitHub stars
A playable Three.js driving simulator where Jev-powered autopilot picks steering and speed up to four times per second: compact tables of eligible paths, traffic and road boundaries go to Jev while geometry and control math stay local.
Jev Demos & Experiments#community#catalog-import#cobanov
Communitystandardagents/jevpilotJavaScript
OpenWhisper
211GitHub stars
A desktop app for dictation, audio-file transcription and meeting notes on Windows, macOS and Linux, using local Whisper models or the OpenAI API, with an opt-in MCP server and local history API so agents can search saved transcripts.
Jev Tools & CLIs#community#catalog-import#logicrw
Communityknuckles92/openwhisperPython
Interlinked CLI
180GitHub stars
A local guard layer for AI coding agents: it evaluates delivered tool hooks against deterministic rules, blocks dangerous ones in milliseconds with no model in the decision path, and keeps a grep-able local activity log for auditing.
Jev Tools & CLIs#community#catalog-import#logicrw
Communityquentincody/interlinked-cliTypeScript
runline
166GitHub stars
Code mode for agents: install a plugin, write JavaScript, call actions. Any API or host capability becomes a callable action, and agent code runs in a QuickJS WASM runtime where each configured plugin is a top-level global; 204 plugins ship bundled.
Jev Tools & CLIs#community#catalog-import#logicrw
Communitymichaelliv/runlineTypeScript
Yielded Agent
164GitHub stars
A TypeScript agent harness toolkit built on Effect and Effect AI: define schemas, instructions and tools, and the runtime runs the model/tool loop, validates output, and retains accepted work across process restarts using SQLite, PostgreSQL or Cloudflare hosts.
Jev Repos & SDKs#community#catalog-import#logicrw
Communitydanieljvdm/effect-agentTypeScript
Taskuary
140GitHub stars
A local, open-source personal AI assistant for your job: mail, chats and tickets become tasks, agents you already use such as Claude Code, Codex and Gemini do the work, and nothing is sent until you approve. The current release is v0.3.8.3.
Jev Tools & CLIs#community#catalog-import#logicrw
Communityldbumble/taskuaryPython
Hack Club AI
136GitHub stars
A lightweight, self-hosted LLM proxy that gives Hack Club's teen community free chat, embedding, and image models over OpenAI-compatible endpoints, with Hack Club auth, API keys, moderation, spending limits, and analytics.
Jev Repos & SDKs#community#catalog-import#logicrw
Communityhackclub/aiTypeScript
Jevlint
125GitHub stars
A Go linter that checks code against plain-language rules: Tree-sitter extracts code units, then each one is sent to Jev or another configured decision provider to decide whether it passes, with caching and eval fixtures.
Jev Tools & CLIs#community#catalog-import#logicrw
Communitycodegirl-007/jevlintGo
Hey Jev
116GitHub stars
A Mac-only voice assistant: say Hey Jev or hold right Option and Jev decides every command in one call for $0.00004 per request, while Whisper transcribes locally, Fish Audio S2.1 Pro speaks replies, and an LLM wakes only for questions.
Jev Tools & CLIs#community#catalog-import#logicrw
Communityhenryklunaris/hey-jevPython
BlueNoise
94GitHub stars
A privacy-first Chrome and Edge extension that dims, collapses, or hides noisy replies, posts, and ads on X using local, reversible keyword and account rules, with an optional Jev second pass for replies no rule matched.
Jev Tools & CLIs#community#catalog-import#logicrw
Communityrokcso/bluenoiseTypeScript
Passage (Working Memory Jev)
77GitHub stars
A localhost teaching aid that uses the real Jev API to review English instructional passages and estimate how many ideas a learner must hold at once, comparing the demand against a 1-5 slot budget with average, peak, and confidence labels.
Jev Tools & CLIs#community#catalog-import#logicrw
Communityaustinaway/working-memory-jevPython
Jev Playground
73GitHub stars
A MoonBit and TypeScript playground for Jev: an API client for noul, choice, and score questions, a single-question CLI, Jev-vs-Jev gomoku with real-time GIF replay, and experiments like an ESLint plugin whose verdicts come from Jev.
Jev Repos & SDKs#community#catalog-import#logicrw
Communitymizchi/jev-playgroundTypeScript
Synkora
48GitHub stars
An open-source, self-hosted AI agent platform: role-based agents with custom tools, RAG knowledge bases, and 50+ integrations, deployable to Slack, WhatsApp, Teams, Telegram, a web widget, or a REST API from one platform.
Jev Agents & MCP#community#catalog-import#logicrw
Communitygetsynkora/synkora-aiPython
GoodWatch
41GitHub stars
A movie and TV discovery app and its open-source monorepo: personalized recommendations from your ratings, a Fingerprint that classifies titles by hundreds of categories, streaming availability, and all ratings in one place.
Jev Tools & CLIs#community#catalog-import#logicrw
Communityalp82/goodwatch-monorepoTypeScript
JevScout
38GitHub stars
A demo-MVP coding-agent skill and CLI that hunts AI and software jobs on real company sites: Chrome sees and acts, Jev scores every link and job, and the host LLM never picks what to click.
Jev Agents & MCP#community#catalog-import#logicrw
Communityhqman/jevscoutPython
jev-anything
32GitHub stars
An independent agent skill that walks a coding agent through designing a bounded Jev decision layer: contract, criteria, error behavior, fallback, and evaluation plan first, then scaffolding through TypeSafe or OpenRouter.
Jev Agents & MCP#community#catalog-import#logicrw
Communitygrandamenium/jev-anythingPython
Polar Llama
30GitHub stars
A Python library that runs LLM and Jev calls as Polars expressions: parallel inference across providers, Pydantic-validated outputs as struct columns, and a native TypeSafe System One layer for per-row decision questions.
Jev Integrations & Adapters#community#catalog-import#logicrw
Communitypnthn-ai/polar_llamaPython
PlasmaLLM
30GitHub stars
A KDE Plasma 6 assistant widget that chats from the panel: multi-provider endpoints, optional system context, tool calls for shell and files behind user approval, interactive terminal blocks, voice input, and KWallet storage.
Jev Tools & CLIs#community#catalog-import#logicrw
Communityjoshuaeroman/plasmallmQML
jev-linkmap
22GitHub stars
A dependency-free Python pipeline that rebuilds a site's internal link map with Jev: code picks candidate targets and in-copy anchor phrases, Jev judges them, and only links that clear the threshold are placed.
Jev Tools & CLIs#community#catalog-import#logicrw
Communitystas4000/jev-linkmapHTML
Elon's Job
21GitHub stars
A local-first Chrome MV3 extension that hides high-confidence pornographic, sexual-innuendo, and solicitation replies on X status pages behind a recoverable placeholder, using the user's own TypeSafe Jev key.
Jev Tools & CLIs#community#catalog-import#logicrw
Communitybugkiwi/elons-jobJavaScript
Answer Book (jev-to-answer)
21GitHub stars
A self-hosted answer book for everyday choices: an OpenAI-compatible LLM lists candidate options, Jev picks among them with a probability distribution, and answers can be favorited, restyled, or followed up.
Jev Tools & CLIs#community#catalog-import#logicrw
Communitycsskrtao/jev-to-answerJavaScript
Jevfill
20GitHub stars
A Chrome extension that autofills web forms from unstructured notes: paste your details as plain text once, and Jev matches each form field to the best line and fills it, never touching password or payment fields.
Jev Tools & CLIs#community#catalog-import#logicrw
Communityimohitmayank/jevfillTypeScript
JEV Safety Gateway
19GitHub stars
A pre-filtering reverse proxy that sits between nginx and an OpenAI-compatible LLM backend: it extracts user input from each request, asks TypeSafe's JEV whether it is harmful, blocks risky ones with a 403 and passes normal ones through unchanged, streaming included.
Jev Integrations & Adapters#community#catalog-import#logicrw
Communitydark-hxx/jev-safety-gatewayGo
jevlint
16GitHub stars
A linter whose rules are plain-English yes/no questions about code — secrets in logs, retry loops that run forever, leaked error messages — answered by TypeSafe's Jev as calibrated probabilities, with output shaped like any other linter.
Jev Tools & CLIs#community#catalog-import#logicrw
Communityice-hazymoon/jevlintTypeScript
Jevernetes
15GitHub stars
A Rust CLI that streams Kubernetes logs, triages them with local offline rules or typed Jev questions online, and presents an interactive terminal UI plus JSON reports. Collection is read-only and every judgment is advisory.
Jev Tools & CLIs#community#catalog-import#logicrw
Communitysunil-sadasivan/jevernetesGo
SpecPi
15GitHub stars
A small, opinionated harness setup for the Pi coding agent: scope control keeps tasks to declared files, an improvement loop turns friction into tested changes, eight pinned packages are verified before install, and LANCET Nano screens shell commands.
Jev Agents & MCP#community#catalog-import#logicrw
Communitytannermidd/specpiJavaScript
Sabi
15GitHub stars
A host-agnostic routing layer that sits between a coding harness and its models, choosing capacity per round from trajectory evidence like tool calls, failures and context pressure, running as a user-scoped daemon and local OpenAI-compatible proxy.
Jev Integrations & Adapters#community#catalog-import#logicrw
Communityvizuh/sabiTypeScript
Laya on Bun
13GitHub stars
Run Laya locally on Bun with native ONNX inference and Hugging Face tokenizers: an HTTP server implementing TypeSafe's decision API plus an English/Persian playground with 16 demos, usable through the official @typesafe-ai/sdk with a custom baseURL.
Jev Repos & SDKs#community#catalog-import#logicrw
Communityali-master/usejevTypeScript
Jev Sentinel
13GitHub stars
A guard for coding agents that puts Jev in front of every step: it judges tool calls for intent and risk, scans tool outputs for instructions aimed at AI agents, and checks replies, mapping probabilities to allow, ask or warn.
Jev Agents & MCP#community#catalog-import#logicrw
Communityharshwasan/pi-jev-sentinelTypeScript
jev-apply
13GitHub stars
Job-application skill with a memory for CLI agents: given a résumé and a posting it fills what your record supports, drafts grounded prose when you allow it, and leaves the rest open rather than guessing.
Jev Agents & MCP#community#catalog-import#logicrw
Communitytheadaply/jev-applyJavaScript
laya-jev-lab
13GitHub stars
Independent measurements of typed-decision models: Jev (TypeSafe API) against Laya (open weights) on 40 Chinese support-ticket classifications, plus a local-first cascade that matches Jev's accuracy at about 1.8x the speed.
Jev Benchmarks & Evaluations#community#catalog-import#logicrw
Communityyibie/laya-jev-labPython
xscout
12GitHub stars
Watches X for the updates that matter to you, has Jev judge each post against a YAML profile, groups posts about the same story, and alerts you in Slack early enough to act.
Jev Tools & CLIs#community#catalog-import#logicrw
Communityethan-ab/xscout-jevTypeScript

Start here with the Jev AI model

Hand-picked entries the maintainers recommend first, from official primitives to community tools.

Jev: For the Builders AND Dreamers (Jev 1.14)
The Jev Day release post: Jev 1.14.0 under jev-preview plus three danger-zone features — composable images on both models, the box question type on 1.14 only, and opt-in 262k context.
Jev Guides & ArticlesArticle#official#release#vision
Official
Box Questions (Dreamer-Ready)
The box question type: one bounding box per question, returned as four edges that are fractions of the image, plus confidence, with no criteria field and no not-found value.
Jev Practices & PatternsDocs#official#docs#vision
Official
Jev 1.14 Day 0 Support in LiteLLM
LiteLLM's Day 0 post for TypeSafe Jev 1.14: the proxy adds box questions, image input and long-context mode on both POST /v1/systemone and POST /v1/decisions, forwarding TypeSafe-Danger-Zone headers only to TypeSafe deployments.
Jev Integrations & AdaptersArticle#community#litellm#gateway
Community

Newest Jev AI model resources

The latest additions to the directory, newest first.

From the Jev community

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

YouTube: KodeKloud's three-minute primer: what a System One model decides, and why it answers in milliseconds.

YouTube: Caleb Writes Code explains what Jev is and how to call it, in seven minutes.

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.

YouTube: AICodeKing tests support routing, refund detection, prompt-injection resistance, and browser automation.

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

Hacker News: Software Bombe and live Enigma demo where Jev ranks cribs and judges plaintext.

ag_212 pointsShow HN: Jev as the Bletchley Park Analyst: A Software Bombe on EnigmaRead the thread on Hacker News

Hacker News: Show HN for the decide CLI: brew install, file context, and multi-question shell scripts.

vsekhar2 pointsShow HN: Decide – Jev decisions in the shell, scripts, and agent skillsRead the thread on Hacker News

Follow @typesafeai

How entries are chosen

Every entry is reviewed against the same bar, whether it comes from TypeSafe or the community.

  • Public and working — no paywalls, sign-up walls, or dead links.
  • Concrete — it has to be about Jev and the System One API, not generic LLM content.
  • Useful today — something a developer can learn from or use right now.
  • Distinct — if a similar entry exists, the description has to say what makes this one different: a different runtime, a cheaper path, a measured result, or a narrower focus.
  • Documented — repos state their license, and docs are in English or carry an English summary.

Spam, affiliate links, and thin AI-generated content are rejected. New entries are expected to ship with a deep dive: two to five highlights, caveats, a quickstart snippet where one helps, and a verification date. Star counts are refreshed when an entry is touched.

Common questions

Short answers about Jev and how this directory works.

What is the Jev AI model?

Jev is TypeSafe AI's first System One model — an AI model that takes a state plus typed questions and returns one structured answer per question: a choice, an ordered score, or the probability of yes, with calibrated confidence on Choice and Score answers. Code can branch on the result without parsing generated text.

What is the difference between Choice, Score, and Noul?

They are the three question primitives. Choice picks one of up to 255 options, Score rates on 2 to 10 ordered levels, and Noul answers yes or no. Choice and Score answers carry a confidence between 0 and 1; a Noul answer is the probability of yes.

Which Jev SDKs and client libraries are available?

TypeSafe maintains official JavaScript/TypeScript and Python SDKs plus a Python adapter. The community has built clients for Go, .NET, PHP, Laravel, Rust, Elixir, Ruby, and Scala, along with framework integrations such as DSPy, LlamaIndex, and Home Assistant. All of them are listed in the Repos & SDKs category.

Is the directory free, and is it affiliated with TypeSafe AI?

The directory is free to browse: every entry is reviewed, and spam, affiliate links, and sign-up walls are rejected. JevDirectory.org is community-run and not affiliated with TypeSafe AI — Jev and System One are TypeSafe AI trademarks.

How often is the directory updated?

Entries are added as new resources appear and re-checked when they are touched. The directory currently holds 3724 entries from 292 source sites, last updated Oct 24, 2026.

What is a verified deep dive?

Most entries include a deep dive: two to five highlight bullets someone would only know from using the resource, a caveats note about limits and requirements, an optional quickstart snippet, and the date the link was last checked. 3724 of the 3724 entries carry one today.

For the canonical details, read the official TypeSafe docs and the API reference.