Orderbook
A continuously synchronized order book from a pluggable OrderbookSource. Binance USD-M futures backs the majors here. The SDK buffers, snapshots and verifies that every update chains onto the last, rebuilding from a fresh snapshot when one does not — so the ladder is never quietly wrong.
useLiveOrderbook
readA continuously synchronized order book from Binance USD-M futures, grouped onto a tick and accumulated. The SDK verifies every update chains onto the last and rebuilds from a fresh snapshot when one does not.
Disconnected
BTCUSDTLoading
Loading depth…
Selected level
Click any row — this is where a real UI would prefill a limit order.
No level selected.
Market buy · 5 base
walkOrderbook — the cost of crossing the book, from the same data.
Waiting for depth.
Depth within ±0.5%
getOrderbookDepthWithin — the rail under the spread is this number.
Waiting for depth.