I've seen on the Discord that engineer Zac wrote that "from a business end its really hard for us to accept crypto" and "opennode helps us offload that to a degree but our customers aren't that happy with it and there's very little alternatives for us that work", so I wanted to list some options that might work for you and will add good options for customers:
- https://www.coinify.com/ - Seems like they handle taxes well, they don't require a certain wallet (even though they ask which one you use) and support different coins.
There's also:
But I know less info about them, just saw them being used on some sites. They do also accept multiple coins.
Please check them out, it's possible that they might be better than OpenNode and will give customers more choice in terms of what coins you accept.
Related: https://kagifeedback.org/d/6733-more-crypto-payment-options
The list of crypto payment processors that I made is of the ones that I've seen used by European and American digital goods sellers, hosting providers, etc.
Some are small companies, others are bigger.
Apart from the other benefits that I listed above, this feature would also maybe enable you to keep the feature of prepaid API credits, if they will solve troubles caused by OpenNode.