Typed decisions with TypeSafe's Jev, the first System One model
Top TYPESAFE GitHub Repositories & Tools (2026)
Discover the most starred and trending open source tools tagged with #typesafe.
A curated list of decision models (System One / typed decision models): hosted APIs, open-weight models, runtimes, SDKs, applications, benchmarks, and papers.
A lightweight, modular Java application framework for web and CLI development, designed for AI integration and plugin-based architecture. Enabling developers to create robust solutions with ease for building efficient and scalable applications.
The pipe layer of an AI nervous system — one interface connecting provider neurons to your application, across three inference types: generate, stream, and a calibrated decide (via TypeSafe Jev). MCP-native, voice (TTS/STT/realtime), RAG, memory, file processors. Powers Tara, Yama and Clairvoyance at Juspay.
Unofficial TypeSafe Jev showcase — System One decisions, not chat.
Put a live Jev (TypeSafe) meter on any video: every sentence scored, rendered as a 16:9 edit
Eyes are All JEV Needs - real time visual devisions from RGB, video and RGB-D cameras.
Agent evals and guardrails as Jev decisions: one request per trace, a fraction of a cent, fast enough for the agent loop. Runs locally with Kev or Laya.
A calibrated context sieve for Claude Code: every tool result is judged by a System One model before it enters context.
An unofficial local visualizer for Jev (TypeSafe): a live view of every call your code makes. Not affiliated with TypeSafe AI.
Thinking coreutils
ACP and MCP adapter that bridges TypeSafe Jev with any LLM — computer use and typed decisions alongside Codex, Claude, Grok, and OpenCode.
Go SDK and CLI for TypeSafe Jev: typed decisions (yes/no, choice, score) from a model
TypeSafe SDK in Swift
The decision layer for your Rails app. A Rails-native wrapper around TypeSafe's Jev System One API: typed, calibrated decisions in your control flow.
Semantic decisions as ordinary Ruby #feels?, #decide, #score, Rails validations and pattern matching powered by Jev
Probabilistic control flow for Ruby and Rails - powered by TypeSafe's Jev