Hey everyone,
I have been trying to build a crypto exchange with fiat off and on-ramps like Coinbase in my home country. However, I have been facing some issues with how these types of exchanges are built. I would like to know how to integrate in-app wallets for different blockchains like Bitcoin, Ethereum, Tron, etc… Do I need to run a node for all these different blockchains or how?
Please if you have any suggestions I would be glad to receive them.