you should definitely look at Kong[1] - they have an opensource API Management tool. They do have their own commercial product Mashape[2] whose pricing is $250

you should definitely look at Kong[1] - they have an opensource API Management tool. They do have their own commercial product Mashape[2] whose pricing is $250 plus 20% of the API Revenue[3] and they have one more option called Gelato[4] that provides Kong Integration [1]https://github.com/Mashape/kong https://github.com/Mashape/kong [2]https://www.mashape.com/ https://www.mashape.com/ [3]https://market.mashape.com/pricing/providers https://market.mashape.com/pricing/providers [4]https://gelato.io/pricing https://gelato.io/pricing