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Экосистема Jev и как получить к ней доступ

Jev блистает как middleware в цикле агента — быстрый, дешёвый «нечёткий if», который маршрутизирует запросы, ставит guardrails на рискованные вызовы инструментов и подрезает устаревший контекст. Вот где его взять и что уже построило сообщество.

Для чего экосистема использует Jev

Стройте с Jev

Чтобы начать, вам не нужен ни один из провайдеров ниже — попробуйте Jev вживую здесь или встройте эти задачи в своё приложение одним вызовом API.

Используйте их напрямую:

▶ Попробовать Jev бесплатноБыстрый старт APIГотовые API

Open-source Jev tools — use them now

Jev launched in September 2026 and the community shipped fast. These are real, working open-source tools built on it — each with the exact command to install or an app to open. Most take a Jev API key; some accept a custom endpoint, and a few run with no key at all. Get a key from us →

MCP servers

Give Claude Code, Codex, Cursor or any MCP agent typed Jev decisions — copy one config and go.

jev-mcpours

Node

Our official MCP server — gives any agent Jev tools (classify, score, check, gate risky tool calls). Wired to work with a key from us, no TypeSafe waitlist.

Install
claude mcp add jev -e TYPESAFE_API_KEY=your_key -- npx -y github:codaaiteam/jev-mcp
works with our keycustom endpoint okSource ↗

jev-mcp (jkudish)

★ 314Node 20+

10 MCP judgment tools — verify a claim, screen content, rank, compare, extract, review a patch — for Claude Code / Desktop / Codex.

Add to your MCP config
{
  "mcpServers": {
    "jev": {
      "command": "npx",
      "args": ["-y", "@jkudish/jev-mcp"],
      "env": { "TYPESAFE_API_KEY": "ts_..." }
    }
  }
}
bring a Jev keycustom endpoint okSource ↗

typesafe-mcp

★ 280Go

A single Go binary MCP connector — typed Jev decisions (yes/no, choice, score) with no runtime deps. Accepts a custom base URL.

Install
curl -fsSL https://raw.githubusercontent.com/itsmostafa/typesafe-mcp/main/install.sh | sh
bring a Jev keycustom endpoint okSource ↗

Browser extensions

Jev running live in your browser: skip sponsors, strip clutter, block ads, drive tabs.

jev-skip

★ 4TS / WXT

Skips YouTube sponsors from the captions and paints a color-coded sponsor-probability heatmap right on the seek bar. Catches ~77% of sponsor seconds at ~$0.0008/video. Endpoint is configurable.

Build & load unpacked
git clone https://github.com/valentynkit/jev-skip && cd jev-skip
npm install && npm run build   # then load dist/chrome-mv3 unpacked
bring a Jev keycustom endpoint okSource ↗

Sponsor Skip

★ 94Node / MV3

Detects and skips YouTube sponsor reads with Jev — three modes (transcript / smart / listen). Ships an extension and a web app; benchmarked against SponsorBlock.

Build & load unpacked
git clone https://github.com/trungdq88/youtube-sponsor-detection
# chrome://extensions → Developer mode → Load unpacked → pick extension/
bring a Jev keySource ↗

unclutter

★ 223TS / WXT · Bun

Strips the clutter off any page — Jev classifies each element as essential or noise and remembers per-site hide rules. Works via the Vercel AI Gateway or a TypeSafe key.

Build & load unpacked
git clone https://github.com/kitze/unclutter && cd unclutter
bun install --frozen-lockfile && bun run build   # load .output/chrome-mv3 unpacked
bring a Jev keycustom endpoint okSource ↗

jev-for-chrome

★ 21TS / React / Vite

Unofficial "Jev drives the tab" — sub-second click / type / select actions in the current page, no text generation. Works via OpenRouter or Cloudflare Workers AI.

Build & load unpacked
git clone https://github.com/chy4pro/jev-for-chrome && cd jev-for-chrome
npm install && npm run build   # then load dist/ unpacked
bring a Jev keycustom endpoint okSource ↗

typesafe-adblock

★ 73JS / MV3

Asks Jev "is this element an ad?" and removes it. The author calls it a fun prototype rather than a production ad blocker — a neat, honest demo of Jev on the DOM.

Build & load unpacked
git clone https://github.com/realZachi/typesafe-adblock
# chrome://extensions → Developer mode → Load unpacked → paste your key
bring a Jev keySource ↗

CLI & dev tools

Semantic grep, SEO audits and more — Jev on your terminal and in CI.

jgrep

★ 57Python

Semantic grep — filter text, JSON or CSV lines by meaning ("a user getting frustrated") with probabilities. Part of a suite (jsort / jselect / jlink). Runs on a gateway or fully local, no key.

Install
uv tool install jev-grep   # then: jgrep "lines where the user is frustrated" logs.txt
key optionalcustom endpoint okSource ↗

jev-seo

★ 42Rust

Free SEO / GEO auditor — 53-rule audits, live crawl, GEO scores, rank-drift and CI gates in one static Rust binary. A key adds sections; without one it degrades to local-only.

Install
cargo install jev-seo   # then: jev-seo audit docs/   ·   jev-seo crawl <url>
key optionalSource ↗

Model routers

Put Jev in front of your models to route each request to the cheapest one that can handle it.

pi-jev-router

★ 13TS / Node

Per-turn model + reasoning-effort routing for the Pi coding agent — Jev grades each turn and picks fast / balanced / frontier, through the Vercel AI Gateway.

Install
pi install npm:pi-jev-router   # needs Pi 0.85.1+, then /login vercel-ai-gateway
bring a Jev keySource ↗

jevonian

★ 2TS / Node

A local, OpenAI-compatible proxy between your coding agent and providers — Jev picks the cheapest capable model per turn, with a dashboard at 127.0.0.1:8787.

Install
npm install --global jevonian   # then: jevonian
bring a Jev keycustom endpoint okSource ↗

Web apps & SDKs

Hosted playgrounds and the official clients to build your own.

@typesafe-ai/sdkofficial

★ 231TS / JS

The official TypeScript / JS client for the typed decision API — the fastest way to build your own Jev tool. (A Python twin, typesafe-sdk-python, also exists.)

Install
npm install @typesafe-ai/sdk
bring a Jev keycustom endpoint okSource ↗

TryJevAI

Web

A hosted playground for Choice / Noul / Score with preset examples (routing, urgency, frustration, risk). Works in the browser with nothing to install.

Open the playground →
no key neededSource ↗

jev-loop-detectorours

single-file HTML

Catch an AI agent stuck in a loop — Jev grades each step progress / repeating / stuck / escalate. A single-file HTML tool; open it, paste a key, run it on your own trace.

Use it live →
works with our keycustom endpoint okSource ↗

jev-skill-routerours

single-file HTML

Route each task to the one tool an agent should call, with confidence. A single-file HTML tool on the Jev decision API.

Use it live →
works with our keycustom endpoint okSource ↗

Games

Play against — or alongside — a real decision model. Single-file, open source.

jev-wikiracerours

single-file HTML

Race the AI across Wikipedia — you and Jev click links to a target; Jev picks the closest of dozens each hop, one real decision, no hallucination. Single-file.

Play live →
works with our keycustom endpoint okSource ↗

jev-pacmanours

single-file HTML

You drive Pac-Man; Jev drives the ghosts hunting you — one real typed decision per turn, with confidence. Single-file, open the HTML and play.

Play live →
works with our keycustom endpoint okSource ↗

jev-companion-arenaours

single-file HTML

Fight beside a Jev-controlled AI teammate that picks its own move each round — attack / defend / follow / retreat — with a reason. Single-file.

Play live →
works with our keycustom endpoint okSource ↗

jev-semantic-racerours

single-file HTML

Type words that fit a clue; Jev scores each one and your car races ahead. Single-file browser game on the Jev decision API.

Play live →
works with our keycustom endpoint okSource ↗

Independent community projects (except where marked ours); not affiliated with or endorsed by us or TypeSafe. Star counts and commands are approximate — check each repo before installing.

Провайдеры и шлюзы

Jev доступен у нескольких провайдеров и шлюзов. ID моделей и endpoint'ы различаются у разных провайдеров, поэтому уточняйте актуальные у каждого.

Это независимый обзор, не официальный. Ссылки ведут на сторонние проекты и провайдеров; проверяйте актуальные ID моделей, endpoint'ы и цены на сайте каждого провайдера. За источником истины обращайтесь на typesafe.ai.

Экосистема и доступ к Jev — шлюзы, LangChain, open-source инструменты · Jev by TypeSafe AI