TypeSafe's Jev model for typed decisions — ask yes/no, multiple-choice or rubric-score questions about a block of state and get calibrated probabilities back instead of prose. Built for classification, routing and scoring steps inside a workflow
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Encrypted at rest, isolated from the model
Resolved from an AES-256-GCM vault at the moment of the call and attached to the request — the model never sees the secrets.
Evaluates the given state against a map of typed questions and returns one structured answer per question, keyed by the same ids used in the request. Every question is evaluated independently and in parallel against the same state, and noul (yes/no), choice (single-select), and score (rubric) questions can be freely mixed within a single call.
Lists the model names and aliases this account can pass in the evaluate-state `model` field, with a description and release date for each. This list currently only surfaces aliases such as `jev-latest` and `jev-preview` — a versioned model ID (e.g. `jev-1.13.0`) is still accepted by the evaluate-state `model` field even when it does not appear here.
Jev MCP Server is open source. Tell the MewCP maintainers.
Pick your app for a step-by-step guide. Most sign in with OAuth, so there is no API key to copy.
Any agentOne Gateway
Discovery, routing, credentials, tool scoping and execution logs all happen at the gateway→connections stay ACTIVE with no work from you
Jev runs through a gateway that holds the credentials, scopes the access and records every call.
Managed auth, hosted MCP servers, and every Jev tool your agent needs.
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