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You can set the leverage level for each symbol for your account.
You cannot change the leverage level if you have any open orders or a non zero position.
Leverage management is performed over WebSocket.
  • Endpoint: wss://trade.qfex.com?api_key=YOUR_API_KEY
  • Authenticate within 1 minute of connecting.

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Example Request

{
  "type": "set_user_leverage",
  "params": {
    "symbol": "AAPL-USD",
    "leverage": 20.0
  }
}
  • symbol — the symbol to set the leverage for
  • leverage — the leverage level to set

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Sample Code

# Python (websocket-client)
import json, websocket

API_KEY = "YOUR_API_KEY"

def send(ws, obj): ws.send(json.dumps(obj))

def on_open(ws):
    # Authenticate
    send(ws, {"type": "auth", "params": {"api_key": API_KEY}})
    # Set leverage
    send(ws, {"type": "set_user_leverage", "params": {"symbol": "AAPL-USD", "leverage": 20.0}})

ws = websocket.WebSocketApp(
    "wss://trade.qfex.com?api_key=YOUR_API_KEY",
    on_open=on_open,
    on_message=lambda _, m: print("Message:", m)
)
ws.run_forever()

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Example Response

{ "ack_response": true }