With the Kraken Python REST API, how to interact with Sandbox/demo environment?

Question

I want to use a Python 3.9 client with the Kraken REST API. I'm using the codebase they posted here -- https://support.kraken.com/hc/en-us/articles/360025180232-REST-API-command-line-client-Python-. I would like to test the calls, so I recently created an API key at https://demo-futures.kraken.com/ . What I'm having trouble with, is figuring out what the demo API URL is. Specifically, I want to use this code

api_domain = "https://api.kraken.com"

...
if api_method in api_private or api_method in api_trading or api_method in api_funding or api_method in api_staking:
    api_path = "/0/private/"
    api_nonce = str(int(time.time()*1000))
    try:
        api_key = open("API_Public_Key").read().strip()
        api_secret = base64.b64decode(open("API_Private_Key").read().strip())
    except:
        print("API public key and API private (secret) key must be in plain text files called API_Public_Key and API_Private_Key")
        sys.exit(1)
    api_postdata = api_data + "&nonce=" + api_nonce
    api_postdata = api_postdata.encode('utf-8')
    api_sha256 = hashlib.sha256(api_nonce.encode('utf-8') + api_postdata).digest()
    api_hmacsha512 = hmac.new(api_secret, api_path.encode('utf-8') + api_method.encode('utf-8') + api_sha256, hashlib.sha512)
    api_request = urllib.request.Request(api_domain + api_path + api_method, api_postdata)
    api_request.add_header("API-Key", api_key)
    api_request.add_header("API-Sign", base64.b64encode(api_hmacsha512.digest()))
    api_request.add_header("User-Agent", "Kraken REST API")
elif api_method in api_public:
    api_path = "/0/public/"
    api_request = urllib.request.Request(api_domain + api_path + api_method + '?' + api_data)
    api_request.add_header("User-Agent", "Kraken REST API")

But I'm not sure what I need to change "api_domain" to in order to work with the demo-futures keys. I'm getting "Exception: EAPI:Invalid key" when I use my API key from the demo-futures account with the

Answer 1

To interact with the Sandbox/demo environment using the Kraken Python REST API, you should change the api_domain variable in your code to the demo environment URL. The URL for the demo environment is "https://demo-futures.kraken.com".

api_domain = "https://demo-futures.kraken.com"

See "The Base Clients"

If the sandbox environment is chosen, the keys must be generated from the demo environment's settings page: https://demo-futures.kraken.com/settings/api.

The standard URL for accessing the Kraken Futures API is "https://futures.kraken.com", and its endpoints can be accessed by sending HTTP requests to https://futures.kraken.com/derivatives/api/v3. However, for the sandbox environment, you should use the "https://demo-futures.kraken.com" domain.

Make sure the API keys you are using are generated from the sandbox environment, as the keys from the production environment will not work on the sandbox environment and vice versa.

---

The OP Dave adds in the comments:

I contacted Kraken support and they confirmed there is no sandbox for limit order trading (for items that are non-futures, like ETHUSD).

How do these guys expect people to use their platform if people can't even test it out?