How to get Jev
There are several ways to start using Jev today. Here's every route, from fastest to most official.
Try it now — free playground
Run real Jev calls in your browser, no key and no signup. Best way to see what choice / score / noul return before you build.
Open the playground ▶Quick API access for testing & prototypes
Move from the playground into code fast: sign in, create a jv_live_ key, and prepay a small balance (from $5, credits don't expire). Run your first call from the dashboard, copy working code, and hit /api/v1/decide — plus additional decision APIs, tools and integrations built around Jev.
Get an API key →Through a gateway / provider
Jev is listed on Vercel AI Gateway (typesafe-ai/jev), OpenRouter (typesafe/jev via its decisions endpoint) and Cloudflare AI Gateway — route to it with your existing gateway key.
See gateways →Official TypeSafe access
For raw model access straight from the team that builds Jev, sign in to the console and use the /v1/systemone endpoint. This is the official, direct route.
console.typesafe.ai ↗In your agent — MCP, Claude Code & LangChain
Give an agent Jev tools with jev-mcp (one npx line for Claude Code, Codex or Cursor), or call it from LangChain via langchain-typesafe / TypeSafeClassifier for routing, guardrails and context compaction.
Ecosystem & tools →Jev is developed by TypeSafe AI. This platform is independently operated by CODEFASHION TECH LTD and is not affiliated with or endorsed by TypeSafe AI.