Which API do you recommend for source of true for crypto values in time for *trading* purpose? What matters for me is cost of usage (prefer free) and number of crypto available? As an example: https://coinmarketcap.com/ has a lot of them although I didn’t check API and price. Or in your experience I should use data from trading platforms which I use like Binance? *I want to create software which will support my trading. I don’t plan to do SaaS etc.