Cancel Order

Type: TRADE · Weight: 1 · not counted against the order buckets

Status: Implemented.

DELETE /api/v3/order

Cancel an open order by orderId. Cancels never consume order-count quota, so quotes can always be pulled while throttled on placements.

Request — parameters in the query string (as for every method), signature last

DELETE /api/v3/order?symbol=CBTC-USDCB&orderId=019910a4-9f21-7b34-8c56-1d2e3f4a5b6c&timestamp=1756600000000&signature=...

Parameters

Name	Type	Required	Notes
symbol	string	yes	Must match the order's symbol.
orderId	string	yes	The order UUID. Non-UUID values → -1100.
origClientOrderId	string	no	Echoed only; not used for lookup. Cancelling by client order id is not supported.

Response — 200

{
  "symbol": "CBTC-USDCB",
  "orderId": "019910a4-9f21-7b34-8c56-1d2e3f4a5b6c",
  "origClientOrderId": null,
  "status": "CANCELED"
}

origClientOrderId is null when the parameter was not sent. No other order fields (price, origQty, executedQty) are returned; read the final state from allOrders.

Errors

HTTP	code	cause
400	-1102	symbol or orderId missing.
400	-1100	orderId is not a UUID, or the trading service rejected the request.
422	-2011	Order does not exist — unknown id, already filled, already cancelled, or not yours.
429	-1003	Weight bucket exhausted.
500	-1000	Trading service unavailable.

A -2011 on a cancel usually means the order completed between your last look and the cancel; treat it as terminal and check allOrders.

Differences from Binance

• Parameters are read from the query string only, for every method.
• origClientOrderId cannot be used to identify the order; orderId is mandatory.
• The response is the short form above, not the full order object.
• No cancelReplace. Cancel-all is DELETE /api/v3/openOrders with a mandatory symbol.