I use Mashape for monetizing an API. They have great customer service, but it seems like their marketplace hasn't gotten a lot of love in the last few years. In

I use Mashape for monetizing an API. They have great customer service, but it seems like their marketplace hasn't gotten a lot of love in the last few years. Instead they seem to be focused on other things, like Kong. I do however, think my customers prefer monthly plans instead of a strict per usage billing. It also helps me predict growth in advance.