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Cancel a list of open limit orders in one API call. Each order is canceled independently — a failure on one order does not block the others. Use this to wind down a quoting ladder or unwind a set of stale orders quickly.

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Endpoint

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Authentication

This endpoint requires HMAC authentication. Include the Key, Timestamp, and HMAC headers on every request. See the authentication guide for signing instructions.

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Request

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integer[]
required
Array of limit order IDs to cancel. Must contain at least one ID.

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Response

Returns 200 OK with a result item for each requested order ID, in the same order as the request.
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integer
required
Zero-based position of this order in the request payload.
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integer
required
The order ID that was submitted.
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boolean
required
true if the order was canceled.
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string
Human-readable error message when success is false. For example, Order is being processed. or Order already filled.

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Example

Sample response (200 OK)
To cancel every open order at once instead of providing IDs, use Cancel all orders.