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DELETE
/
orderbooks
/
stocks
/
api
/
orders
/
{orderId}
{
  "userAddress": "0x1111111111111111111111111111111111111111"
}

{
  "success": true,
  "data": {
    "id": "ord_xyz789",
    "status": "CANCELLED",
    "cancelledAt": "2025-01-15T10:35:00.000Z"
  },
  "metadata": {
    "requestId": "550e8400-e29b-41d4-a716-446655440000",
    "timestamp": "2025-01-15T10:35:00.000Z",
    "instanceId": "inst_abc"
  }
}
Cancels an open order. Only the original submitter (identified by userAddress) can cancel their own orders.

​
Authentication

Requires an instance API key with the trading service enabled.

​
Path Parameters

​
orderId
string
required
The order identifier. Max 100 characters.

​
Request Body

​
userAddress
string
required
EVM address of the user who placed the order. Must match the original order’s userAddress. Format: 0x[a-fA-F0-9]{40}.
{
  "userAddress": "0x1111111111111111111111111111111111111111"
}

{
  "success": true,
  "data": {
    "id": "ord_xyz789",
    "status": "CANCELLED",
    "cancelledAt": "2025-01-15T10:35:00.000Z"
  },
  "metadata": {
    "requestId": "550e8400-e29b-41d4-a716-446655440000",
    "timestamp": "2025-01-15T10:35:00.000Z",
    "instanceId": "inst_abc"
  }
}

​
Error Codes

CodeStatusDescription
ORDER_NOT_FOUND404Order does not exist or does not belong to this instance