I am selling a service on my website (subscription) that costs 5$, and I want to add a crypto payment processor, Mainly (BTC-LTC-ETH).
Do all the services you offer cost 5$ or small amounts? If so, relying on a third party will be a waste of money even if the offer is good.
I suggest you in this case:
- BTCPay Server: Accept LN payment (save fees) or using Altcoin payment since many will use it to make payments (a few will use BTC payment.)
- blockonomics: This is the best choice of your list.
If you offer a lot of services which may be at higher prices it is better to pay using a third party such as
https://coingate.com/accept-bitcoin