Licensing an AWS serverless application

You can have in your application some sort of "call home" mechanism which calls your backend to verify that the account is allowed to use the application.

Also, I recommend you look at the AWS Marketplace as a mechanism for distributing your application. I am not sure it has a mechanism to sell serverless applications, but it may have ways to protect you.

I am also looking for a similar solution. Did you find any solution or hack? I did find https://aws-ia.github.io/cloudformation-aws-marketplace-saas/#_overview but that is to meter SaaS applications using AWS Marketplace. Could this work?

Is there any way we can protect/license/codesign/obfuscate our lambda code so we can run it in customer's AWS account, so they are billed for AWS cloud costs but have to come back to renew or buy more licenses from us?