SDKs and API clients with decision models

Python library that converts a JSON Schema into Jev questions and returns JSON that validates against the original schema.

Go gateway that pools multiple TypeSafe accounts behind the native System One API with user keys, quotas and failover.

Agent Client Protocol agent that exposes Jev Choice, Score and Noul decisions in IDEs with guided input and probability displays.

Node library providing multi-provider Jev transport with fail-closed validation, used by Jev Browser and Jev MCP.

Python library that finds numeric answers by bisection, asking Jev higher, lower or exactly at each guess.

Browser form for building Jev requests from pasted text without hand-writing JSON, then rerunning to see how steady the answers are.

Small dependency-free CLI and stdio MCP server for Jev's noul, choice and score judgments over text or JSON.

Python CLI that analyses JSON, NDJSON and JSONC logs and artifacts with Jev question packs, anchoring each answer to source lines.

Node/Bun CLI for asking Jev boolean, choice and score questions over text or JSON, with direct or Vercel AI Gateway providers.

jevctl: Node CLI for typed Jev judgments (verify claims, screen agent hijacks, classify) with exit codes for CI gating.

Swift 6 bridge that runs System One decision models behind Apple's Foundation Models API, on device with Laya or via hosted endpoints.

Dependency-free CLI and Codex skill that send local state to Jev for typed judgments and return answers without echoing the state.

PHP library, extracted from LLPhant, for typed Jev Noul, Choice and Score calls, also usable with a Laya endpoint.

Terminal REPL for shaping System One requests before writing code, with lessons, a sketch editor, conversation turns and offline simulation.

Unofficial Rust gateway routing /v1/systemone requests to TypeSafe, Vercel, OpenRouter or local Laya via an editable DAG.

Unofficial Symfony bundle with a typed Jev client, Noul and Choice validator constraints, Workflow guards and a profiler panel.

npm library that walks a taxonomy with one Jev Choice per level so you can select among thousands of leaves despite the 255-option cap.

Local service to define, test and publish versioned Jev judgment functions, callable over HTTP by backends and over MCP by agents.

Nushell module for TypeSafe's System One API: pipe content in, ask noul, choice and score questions, and filter on the numbers.

.NET 10 tooling for Jev: an AOT-safe typed client with retries and DI, plus a stdio MCP server with evaluate and batch tools.

Zero-dependency local gateway and live visualiser that proxies Jev calls, logs every decision to SQLite and draws them on a real-time map.

Rust CLI for Jev that lints typed question sets offline, then sends them and prints probabilities, labels and scores as JSON.

Linter for Jev queries that flags question and state wording the model is documented to handle badly, before you pay.

Offline TypeScript token counter and request-cost estimator for Jev 1.13, a port of the reconstructed jevtok encoder.

Ruby gem that stores Jev Noul, Choice and Score answers about a record's text as ordinary ActiveRecord columns you can query.

Fast Rust terminal coding agent with 44 providers that can ask Jev for its own decisions through a bundled client.

Zero-dependency npm package that runs Laya natively or as WebAssembly in Node, Bun and browsers, drop-in for Jev's /v1/systemone.

Task plugin for the new-api LLM gateway that adds a native /v1/systemone endpoint for Jev with auth, routing and token billing.

Nushell plugin that asks Jev noul, choice and score questions about a state or each table row, returning typed answers to filter.

Local-first desktop AI workbench for llama.cpp, vLLM and SGLang that includes a JEV typed-decision page and /v1/systemone gateway.