I’m brand new to this and have no idea how to properly add the crypto API to my wallet or even what an API is. I’ve tried googling it but I still don’t understand
An API is essentially an interface a software application or service can provide to enable another software or service to connect to it.
Some crypto apps and exchanges provide APIs that portfolio/tax trackers like Koinly can connect to.
Crypto.com app does not have an API. Crypto.com exchange does, but Koinly prefers you to manually import the transaction files
https://help.koinly.io/en/articles/4238173-how-to-import-crypto-com-transactions