# AI Gateway now supports TypeSafe clients and an HTTP API for Jev > Source: > Published: 2026-09-21 00:00:00+00:00 You can now call [Jev from TypeSafe AI](https://vercel.com/ai-gateway/models/jev) through AI Gateway using an existing TypeSafe client or the HTTP API, in addition to the AI SDK. **TypeSafe client:** Point an existing TypeSafe client at AI Gateway without changing its evaluation calls. **HTTP API:** Call Jev directly from any language or framework. **AI SDK:** Call Jev from a TypeScript application using AI SDK. Jev is a probabilistic decision model for software. State goes in, and typed answers come out with probabilities attached, so there's no generated text to parse. Requests are billed through AI Gateway on all three paths, so they appear alongside your other model calls in usage and observability. Change the base URL and API key. Your `systemOne` calls, `noul` questions, and response shapes stay exactly as they are. New integrations name the model as `typesafe-ai/jev` and ask one of three question types: `boolean` returns a probability from 0 to 1, `choice` picks one option from a set you name, and `score` rates against a scale you define. This example asks whether an agent should keep working after fixing a bug and passing its tests. With the HTTP API, `POST` to `/v1/evaluate`: With the AI SDK, run the same evaluation through `evaluate`: You can also use Jev through [eve](https://vercel.com/eve), a framework for building and deploying durable agents with sandboxed compute, human approvals, and evaluations already built in. eve uses Jev as the default [evaluation model](https://eve.dev/docs/guides/evaluate) for automatic model selection, typed evaluations, and automated tool approvals. See the [TypeSafe-compatible API guide](https://vercel.com/docs/ai-gateway/sdks-and-apis/typesafe) to migrate a client, or the [evaluation guide](https://vercel.com/docs/ai-gateway/modalities/evaluation) for the HTTP API or AI SDK.