While implementing our tokenization service, we have evaluated several commercial products and open source offerings. Our philosophy is to pick the right open source product that meets our requirement and can be easily integrated into our ecosystem. When there is no open source project suitable for our needs, then we consider commercial offerings. Our last resort is to implement it on our own.
There is an open source project Tokenator available on GitHub.com, but it is very simple and hasn’t been updated the last three years.
tokenex is a cloud service provider but doesn’t support OAuth 2.0 yet.
emvco is another online service provider but focuses on payment only.
There are some useful online tools we have used during the development: