Jev (TypeSafe System One) — Finance & Trading Projects
Projects using Jev, TypeSafe AI's System One decision model (released 2026-09-15), in investment, trading, and financial-data contexts. Surveyed 2026-09-20 via GitHub API and community awesome-lists.
Reference project
jarrodwatts/jev-trader (★1.3k, 2026-09-16) — One AI trade decision every Monad block (~300 ms). Jev reads the Kuru MON-USDC order book and answers buy or sell; the bot posts a post-only limit order one tick inside the touch, earning the spread. Bun/TypeScript, dry-run mode, SSE dashboard. The template most projects below derive from.
jev-trader ported to Hyperliquid. Five isolated sleeves (BTC/ETH/SOL/DOGE/BNB), five wallets, real fills. Jev answers long/short then open/close/hold via Choice. Live desk
Open-source AI Trading OS (crypto, stocks, forex). Added Jev post-release as a "pre-trade decision gate" in front of the LLM gate. Largest Jev integration by stars
Hong Kong stock direction forecasting. AKShare fetches target + HSI + HSTECH; Jev answers up/flat/down as Choice; standalone HTML reports. Careful treatment of probability calibration
IRS tax-document page classifier: 261 forms, 100% strict accuracy on their corpus, ~$0.001/page (34× cheaper, 6× faster than their prior LLM pipeline)
Empty / placeholder repos
maxlibin/moomoo-jev-trader (Moomoo dashboard, intended), Pastorkid/jevTradingBoth, hifizz/jev-finance-benchmark — created but no content yet.
Observed patterns
"Jev judges, code executes" is universal. Every project gives Jev only typed judgments (Choice/Noul/Score) over compact state; thresholds, risk vetoes, and order placement stay in deterministic code. The buberlo redesign makes this separation most explicit.