Chilkat for Amazon Marketplace SP-API
Chilkat already “supports” the Amazon Marketplace SP-API because it’s just a matter of implementing the API calls using the existing Chilkat general-purpose HTTP/REST functionality.
Given that Chilkat is not an Amazon seller, we don’t have direct access to be able to write *and test* examples. We did it for Amazon’s older MWS API, but with customer-provided access to the sandbox. If you have trouble implementing Amazon Marketplace SP-API in a programming language, Chilkat will be happy to help if sandbox access can be provided. (These things are too complex to be able to have any chance of writing examples that actually work without actual testing.)
PS> This blog post is written on 23-May-2022, and it may be that Chilkat already wrote examples if you’re reading this at a later date.