It seems you're not done yet? You didn't mention what exactly you need?

Or do you developing a payment method and you are trying to implement it on your website?

I suggest if you don't want to some control your wallet or use any centralized payment methods why not use BTCpayserver?
You can host this on your own PC and add other coins supported.

If you are interested check this link below.

- https://github.com/btcpayserver/btcpayserver