Open-source jev-trader: a 24/7 trading bot that decides every block
The MIT-licensed jev-trader market-makes MON-USDC on Kuru on Monad and dry-runs without a private key; decisions cost $0.0004 each, but without a TypeSafe key it falls back to a momentum heuristic instead of calling Jev.
1 trade decision costs $0.0004 on Jev. A frontier model charges $0.0304. Same call. Someone open sourced jev-trader: a 24/7 bot that makes that call every block. MIT, 2,133 stars. Not a backtest. Not a paper. Not a course. What it actually is, before you clone it: It market-makes MON-USDC on Kuru, a DEX on Monad. Post-only limit orders, so it earns the spread instead of paying it. That is 1 pair on 1 venue out of the box. Run it with no private key and it dry-runs: real order book, real decisions, simulated fills. You watch it think with 0 capital at risk. 3 commands and it boots: cp .env.example .env bun install bun run start The numbers from the repo itself: → order book read, p50 18 ms → whole loop, p50 100 ms → exactly 2 RPC calls per block, 1 to read, 1 to send → nothing else on the hot path That last line is the part worth having. The low latency engine is the hard half, and it is sitting there finished under MIT. One thing every repost leaves out: with no TypeSafe key it does not run Jev at all. It falls back to a momentum heuristic. The AI half is $0.042 per 1M input tokens, output free. bookmark it, you'll need it later repo below https://github.com/jarrodwatts/jev-trader
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