Vercel's agent framework with Jev wired into its experimental evaluate path, so the scoring step of an agent returns typed decisions rather than prose the surrounding code has to parse.
Python harness for GUI grounding: it divides a screenshot into grid tiles, has a vision model describe each tile neutrally, then asks typesafe-ai/jev to choose among the descriptions. Local confidence and margin gates decide whether to descend or refuse, and it emits only a point and bounding box.
Third-party TypeScript check that compares Jev (typesafe-ai/jev) against openai/gpt-4o-mini and anthropic/claude-sonnet-4.5 under identical conditions, routing 60 synthetic booking inquiries in four languages for a photo-shoot service, all through one Vercel AI Gateway key.
Open-source link attribution platform that calls typesafe-ai/jev in malicious-link-check.ts before a short link is created, so the URL is gated by a typed Jev verdict rather than a static blocklist. Next.js and TypeScript with an open-core license.
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.
Cline's official curated plugin collection for its CLI and extensions. Includes jev-browser, which executes browser goals with Jev through Vercel AI Gateway plus screenshots and isolated Chromium sessions; plugins install by directory slug, e.g. cline plugin install jev-browser.
Local OpenAI- and Anthropic-compatible API gateway in Rust that reuses Codex, Grok, Kiro or Vercel AI Gateway logins. It carries Jev through its model catalog and evaluation path, exposing typesafe-ai/jev via POST /v1/evaluations with state and typed questions.
A Pi coding-agent extension that uses Jev to classify each request and route it to one of three configured models. Supports TypeSafe, Cloudflare AI Gateway, Vercel AI Gateway and OpenRouter backends, with doctor checks, shadow mode and an off-by-default setup.
A Next.js dashboard and daily Vercel cron that scores public job postings against one resume with Jev through the Vercel AI Gateway, then applies through a Grok Bot webhook that fills ATS forms and writes status back.
Vercel Labs' Unix-like coding agent CLI written in Zig, shipping a typesafe_permission_reviewer builtin that runs the agent's permission decisions through Jev rather than an LLM call. Model-agnostic and embeddable via libfx and ACP.
Open-source AI email assistant (Next.js, Postgres, 12k+ stars) with a decision-model layer that can run on openrouter:typesafe/jev-1.13: Jev-backed questions cover rule selection, cold-email detection, thread status, recurring patterns, unsubscribe pages, and sender categorization, each with evals.
Merged PR in the Kilo Code cloud monorepo that replaces its LLM auto-routing classifier with one OpenRouter /systemone Choice request to typesafe/jev-1.13; the PR reports 0.93-0.94 route accuracy on 72 golden cases at roughly $0.00028 per call, with a 250 ms transport-error retry.
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.
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.