Hi
How can I get the totals cost including commission of a filled order ?
I assume that the amount that is deducted from my wallet can be linked to a order 
I did read: How to get MARKET order's executed price in SPOT? - #2 by aisling but it’s not 100% clear.
Kind regards
Steen
Use GET /api/v3/myTrades to list trades you’ve done to fill the order, then sum them.
This endpoint returns the details of your trades with counterparties as well as the commissions that you pay the exchange.
For example, here’s an order to MARKET BUY some BTC for USDT with quoteOrderQty=5000.00.
GET /api/v3/order?symbol=BTCUSDT&orderId=6505618 returns a summary of the order, confirming that it’s fully FILLED:
{
"symbol": "BTCUSDT",
"orderId": 6505618,
"orderListId": -1,
"clientOrderId": "DbEbedtckod2SvnEDSupeG",
"price": "0.00000000",
"origQty": "0.08403000",
"executedQty": "0.08403000",
"cummulativeQuoteQty": "4999.91598920",
"status": "FILLED",
"timeInForce": "GTC",
"type": "MARKET",
"side": "BUY",
"stopPrice": "0.00000000",
"icebergQty": "0.00000000",
"time": 1726438360369,
"updateTime": 1726438360369,
"isWorking": true,
"workingTime": 1726438360369,
"origQuoteOrderQty": "5000.00000000",
"selfTradePreventionMode": "EXPIRE_MAKER"
}
from which you can see that I’ve paid 4999.91598920 USDT in total (cummulativeQuoteQty) and received 0.08403000 BTC in total (executedQty). However, this doesn’t include the information on commissions, so the actual quantity that I’ve received might be different.
GET /api/v3/myTrades?symbol=BTCUSDT&orderId=6505618 returns more detailed information about the individual trades:
[
{
"symbol": "BTCUSDT",
"id": 1594825,
"orderId": 6505618,
"orderListId": -1,
"price": "59500.01000000",
"qty": "0.00340000",
"quoteQty": "202.30003400",
"commission": "0.00000000",
"commissionAsset": "BTC",
"time": 1726438360369,
"isBuyer": true,
"isMaker": false,
"isBestMatch": true
},
{
"symbol": "BTCUSDT",
"id": 1594826,
"orderId": 6505618,
"orderListId": -1,
"price": "59500.12000000",
"qty": "0.00757000",
"quoteQty": "450.41590840",
"commission": "0.00000000",
"commissionAsset": "BTC",
"time": 1726438360369,
"isBuyer": true,
"isMaker": false,
"isBestMatch": true
},
{
"symbol": "BTCUSDT",
"id": 1594827,
"orderId": 6505618,
"orderListId": -1,
"price": "59501.78000000",
"qty": "0.07306000",
"quoteQty": "4347.20004680",
"commission": "0.00000000",
"commissionAsset": "BTC",
"time": 1726438360369,
"isBuyer": true,
"isMaker": false,
"isBestMatch": true
}
]
Here you can see that I’ve made three trades:
Trade "id" |
"price" |
"qty" |
"quoteQty" |
"commission" |
|---|---|---|---|---|
| 1594825 | 59500.01000000 USDT | 0.00340000 BTC | 202.30003400 USDT | 0.00000000 BTC |
| 1594826 | 59500.12000000 USDT | 0.00757000 BTC | 450.41590840 USDT | 0.00000000 BTC |
| 1594827 | 59501.78000000 USDT | 0.07306000 BTC | 4347.20004680 USDT | 0.00000000 BTC |
Tallying up qty, we get 0.08403000 BTC (same as executedQty). Similarly for quoteQty (which is price × qty), ending up with cummulativeQuoteQty.
If testnet had any commissions (lol) then the commission value would be non-zero 
You sum them up like other quantities and get a total that you’ve paid for the order.
qty and are deducted separately.executedQty)cummulativeQuoteQty)