orderbook ▶ Live demo — the real engine, compiled to WebAssembly, running in your browser · ▶ Live console — a running market with signals and surveillance, every panel titled by the call that produces it. An embeddable limit order book and matching engine in Go. Integer-exact int64 pricing with no floating point on the money path, a match path that allocates 0 B/op, a single-writer core with no lock contention on the match path, deterministic crash recovery gated in CI against a 2,000-command tape, and cmd/obgw — a reference TCP gateway speaking a frozen binary protocol on both edges, order entry and public market data. go get it into an exchange, a simulator, or a backtester: the core owns the book, the matching algorithm, order lifecycle, sequencing and market-data snapshots, while pkg/wal (durable persistence), pkg/surveillance (market-abuse detection), pkg/gateway (pre-trade admission) and pkg/auction (uniform-price call auction) cover the layers around it. It has never run a live market, and what that costs you is written down rather than implied. --- Installation Requires Go 1

⚠ No verified equity curve — no track-record source connected.

No score history is stored yet — only the current score is shown.

⚠ No live verification account connected — ask for proof before buying.

Alerts on changes: coming soon

Prop-firm compatibility not provided.

Data-completeness & trust index (not a profitability rating)