I am looking for gambling sites which accept alternative coins via coinpayments gateway?
Is coinpayment still running? I thought it was shutdown few years ago, didn't know they've been back in business.
Otherwise if they still running I guess you can use it to any trading sites nor gambling sites since this just works as typical wallet and supported several alts. Though I don't know if the terms had already change.
They did mention that they were shutting down in 2014, but they have been back since quite sometime. They are active on twitter too.
As to the question posted by op, I am not sure which websites support coinpayments since popular cryptocurrencies are the primary payment methods.
I also do not see the need to use their services. Unless someone wants to use them as a mixer - from what I know, for example, Coinbase does not like transfers from gambling websites, so someone can filter transfers through them.