Cancel a resting order by ID.

DELETE 
/v1/orders/:order_id

Cancels the named order. The order must belong to the calling account; cancelling someone else's order returns 403. Idempotent — cancelling an already-cancelled or already-filled order returns 404.

Request

Responses

200

Cancellation processed.

400

Request was malformed or failed validation. The error.code field carries the machine-readable reason; common values include invalid_request, invalid_json, invalid_order_id, invalid_instrument_id, invalid_credential_id, invalid_resolution, and operation-specific codes documented per endpoint.

401

Missing or invalid Authorization header.

403

Account state forbids cancellation, or the order belongs to another account. Error codes — account_not_active, cancel_rejected with reason wrong_account.

404

Order not found (unknown ID, already cancelled, or already filled).

504

Engine did not acknowledge within deadline.