Spot FIX Authentication

Both public market data and private trading endpoints requires a first layer of authentication with the usage of SenderCompID (Tag 49) at the logon and on all subsequent messages.

This senderCompId will be provided by Kraken support during onboarding.

For the private logon, another layer of authentication is required and detailed on this page.

def get_password(d_msg):
    api_key = "YOUR API_KEY"
    api_secret = "YOUR API_SECRET"
    nonce = str(time.time() * 1000.).split('.')[0]
    message_input = "35=" + "A" + __SOH__ + "34=" + d_msg["34"] + __SOH__ + "49=" + d_msg["49"] + __SOH__ + "56=" + "KRAKEN-TRD" + __SOH__ + "553=" + api_key + __SOH__
    api_sha256 = hashlib.sha256((message_input + nonce).encode("utf-8")).digest()
    api_hmac = hmac.new(base64.b64decode(api_secret), api_sha256, hashlib.sha512)
    fix_password = base64.b64encode(api_hmac.digest())
    return fix_password