Where can I buy Callisto Coin?

Excuse me, could you please provide some information on where one might be able to purchase Callisto Coin? I've been interested in investing in this particular cryptocurrency but am unsure of the best avenues to acquire it. Are there any specific exchanges or marketplaces that you would recommend for purchasing Callisto Coin? Additionally, are there any precautions or considerations that I should be aware of before making a purchase? Thank you for your time and assistance.