
AWS Data Exchange
6.2#1 in data exchange platformsFree planFree planWebAPI
Visit

It suits data subscribers looking for free or provider-priced data products, and providers who want to publish products or private offers. It can also serve people seeking publicly available Open Data on AWS, whether or not they have an AWS account.
It suits data providers building commercial data businesses and delivering products to customers’ preferred cloud destinations. Organizations needing marketplace publishing, governance, access controls, and multiple delivery methods are the target users.