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Jev Projects Added This Week

Discover 155 new open-source Jev projects added this week to bestjev, with verified GitHub repositories, languages, stars, and implementation details.

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This week+155

Official6SDKs & clients50Frameworks & integrations53Agent tooling158Browser & computer use51Applications72Games & simulations56Demos & playgrounds46Benchmarks & research99Other lists31
ProjectLanguageAddedDescription

  1. BerriAI/litellm

    Frameworks & integrations    59,363Python

    AI gateway with a TypeSafe guardrail and Jev classifier for policy judgments and complexity-based request routing.

  2. can1357/oh-my-pi

    Frameworks & integrations    32,394TypeScript

    Coding agent with a TypeSafe judgment provider that uses Jev for typed checks, routing, and workflow decisions.

  3. davila7/claude-code-templates

    Agent tooling    30,897Python

    Claude Code configuration toolkit shipping Jev-based model routing, skill suggestion, and tool guardrail modules.

  4. trycua/cua

    Browser & computer use    25,790HTML

    Computer-use platform with a Jev recipe where the model selects one bounded action candidate and the client validates it before execution.

  5. vercel-labs/json-render

    Frameworks & integrations    17,982TypeScript

    Generative UI framework with an experimental evaluator that lets Jev choose among application-supplied composition criteria.

  6. jev-chat/jev-chat-jarvis

    Applications    1,696Kotlin

    Android conversation copilot where Jev interprets chat context and helps rank candidate replies before the user inserts one.

  7. jaredpalmer/kev

    Jev-like models    1,558Python

    Trainable family of small Qwen-based Jev-like decision models with typed primitives, datasets, evaluation tools, and local inference.

  8. lahfir/agent-desktop

    Browser & computer use    1,441Rust

    Desktop automation runtime with a Jev skill that chooses UI operations and targets from accessibility-tree candidates.

  9. laravel/ai

    Frameworks & integrations    1,183PHP

    Laravel AI SDK with a TypeSafe provider for Jev Choice, Score, and Noul classification requests.

  10. CelestoAI/celesto

    Browser & computer use    958Python

    Agent-computer platform with a runnable pull-request review lab where Jev judges whether findings are introduced, supported, and actionable.

  11. kitfunso/hippo-memory

    Frameworks & integrations    752TypeScript

    Agent memory library with an optional Jev reranker that judges which retrieved memories are relevant.

  12. uezo/aiavatarkit

    Frameworks & integrations    678Python

    Conversational-avatar framework with a Jev gate that judges whether a speaker has finished a turn.

  13. githubnext/localjev

    Jev-like models    662TypeScript

    Local Jev-compatible System One API that converts typed questions into DiffusionGemma classification prompts and probabilities.

  14. AbdelStark/awesome-typesafe-jev

    Other lists    431HTML

    Awesome Jev: a source-backed field guide to TypeSafe's System One model, with SDKs, live demos, agent tools, and independent evaluations.

  15. featherless-ai/simple-jev

    Jev-like models    429Python

    Open-model Jev-style server that reads next-token logits to return typed choices, rubric scores, and truth judgments.

  16. wuyoscar/jev-skill

    Other lists    384Python

    An awesome collection of Jev use cases, workflows, and agent skills.

About the catalog

What is bestjev?

bestjev is an independent, community-maintained directory of open-source projects built around Jev, TypeSafe AI's System One model for typed decisions.

Each listing links to its original repository and records its category, primary language, GitHub star snapshot, and a localized description, helping developers find verifiable Jev SDKs, agents, integrations, applications, research, and tools.

bestjev is not affiliated with or endorsed by TypeSafe AI.

What is Jev?

Jev is TypeSafe AI's System One model for decisions that software needs to consume. Instead of generating free-form prose, it accepts a state and one or more typed questions, then returns structured answers with calibrated probabilities.

It fits workflows where the option space or scoring rubric is known in advance: routing an agent, validating a tool call, ranking candidates, checking a policy, or deciding whether an action should proceed.

Operational advantage

Applications can set deterministic thresholds, inspect uncertainty, and route low-confidence cases to a person or a larger model.

CHOICE

Pick one option

Select from a known set and return probabilities with confidence.

SCORE

Rate on a rubric

Place an input on an ordered scale with a full distribution.

NOUL

Estimate truth

Return the probability that a statement is true, from zero to one.

How is this catalog verified?

Each entry is checked against public evidence: the upstream repository, project-authored documentation, and visible Jev usage. Stars are a dated discovery snapshot, not a quality ranking.

Curated by

“Think of Jev as a frontier-intelligence function call: unstructured state in, typed probabilistic decisions out.”— TypeSafe AI, introducing Jev

Which sources does bestjev use?

Contribute

How to submit a new project

Know a public project that uses Jev? Send us its repository and the evidence needed to verify it. Submissions are reviewed before they appear in the catalog.

Submit a projectOpens a pre-filled GitHub issue.
  1. 01

    Share the repository

    Provide the public GitHub URL and a concise description of what the project does.

  2. 02

    Show how it uses Jev

    Link to code, documentation, a demo, or another public source that makes the Jev integration verifiable.

  3. 03

    We review and publish

    We verify the evidence, choose the right category, and add accepted projects in a future catalog update.