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JEV

Open-source directory

Every project here really calls Jev in its source · refreshed daily

788projects
182runnable here
765code receipts

ALL 788 PROJECTSEvery project

website/playground.mjs
questions: {
  refund: boolean,
  spam: boolean,
}
▶ runnable
@featherless-ai★ 312

simple-jev

Turn any open model into a classifier/jev endpoint

InfrastructurePython
packages/api/examples/benchmark.ts
questions: {
  refund: boolean,
}
▶ runnable
@iammrduncan★ 32

typesafe-ai-benchmark

This is a LLM Gateway that mimics typesafe ai structured output. Like an imposter Jev.

InfrastructureTypeScript
tests/live_scoring.mjs
questions: {
  route: choice,
  urgent: boolean,
  severity: score,
}
▶ runnable
@pst2154★ 9

Nemotron_Jev

Nemotron Diffusion Decision Lab

InfrastructureHTML
src/routing-policy.ts
questions: {
  model: choice,
  effort: choice,
  is_followup: boolean,
}
▶ runnable
@adarshmishra07★ 2

jcm-router

Local proxy that picks the Claude model and effort per message using TypeSafe Jev. Routes subagents, leaves your cached main chat alone.

InfrastructureTypeScript
python/tiershift/signals.py
questions: {
  difficulty: score,
  needs_reasoning: boolean,
  stakes: score,
  // +5
}
▶ runnable
@iamvatsalpatel★ 2

tiershift

Shift every LLM call to the cheapest model that can handle it. Routing decided by TypeSafe Jev in ~180 ms. No training data. Policy in plain YAML. TypeScript and Python.

InfrastructureTypeScript
apps/web/src/snippets.ts
questions: {
  is_billing: boolean,
}
▶ runnable
@molis-ai★ 2

jev-workbench

Build versioned judgment functions on TypeSafe's Jev once, then call the same published version from your backend over HTTP and from coding agents over MCP. The vendor key stays on your machine.

InfrastructureTypeScript
src/app/docs/page.tsx
questions: {
  hallucination_sensitive: boolean,
}
▶ runnable
@tylerjharden★ 2

ailerix

Type-safe model router. Jev (System One) banks each request to a typed catalog route.

InfrastructureTypeScript
probe.mjs
questions: {
  tier: choice,
  is_greeting: boolean,
}
▶ runnable
@az9713★ 1

jev-model-router

Jev (TypeSafe) model router on the Vercel AI Gateway

InfrastructureJavaScript
src/jev_admit.ts
questions: {
  same_intent: boolean,
}
▶ runnable
@kushals256★ 1

jevcache

Skip expensive LLM calls when TypeSafe Jev says same intent. OpenAI-compatible local cache proxy — npx @kushalicious/jevcache

InfrastructureTypeScript
tests/nexus/unit/jev-payload-guardrails.test.ts
questions: {
  eligible: boolean,
}
▶ runnable
@Mistertelecom★ 1

NEXUS-AI-Gateway-with-JEV

AI gateway that validates before it executes: Lead plans, JEV validates, Worker generates. Local-first control plane, 359-provider catalog.

InfrastructureTypeScript