Amazon has 12 Affiliate supported storefronts across the World.
This includes the Americas (United States, Canada, Brazil, Mexico), Europe (France, Germany, Italy, Spain, United Kingdom) and Asia (China, Japan, India). In addition, Amazon has additional storefronts in The Netherlands and Australia, which does not provide Affiliate support as yet.
Currently, Spreadr supports Geo-localization based redirects for the US, Canada, Mexico, France, Germany, Italy, Spain, UK, and India. You can add Affiliate ids for these countries. More countries will be added very soon.
Note - for the Mexico and India Affiliates programs, you must have a bank account located within the country.
Sign up for each of the Affiliate programs where you see traffic, add the Affiliate ID in the Spreadr account, and start earning international commissions.