
AWS Data Exchange
6.2#1 in data exchange platformsFree planFree planWebAPI
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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 analysts seeking datasets through a dashboard and developers or AI agents that need API access. Buyers can preview listings or request data to a specification, while providers can publish datasets.