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Documentation Index

Fetch the complete documentation index at: https://docs.qfex.com/llms.txt

Use this file to discover all available pages before exploring further.

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

​
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
    # https://docs.qfex.com/websocket/channels/trade/authenticate#how-it-works
    send(ws, {"type": "auth", "params": { "hmac": { "public_key": "qfex_pub_xxxxx", "nonce": "c0ffee...", "unix_ts": 1760545414, "signature": "5f2e..." }}})
    # 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()

​
Example Response

{ "ack_response": true }