Credentials for Community developed nodes

Hi Guys,

We decided to test the use of KNIME nodes to commercialize our software. I created a python-base node recently for testing. Now, I am looking for solutions on how provide license access to our users. I was imagining that it could be possible to have a type of connector to provide user validation to access the functionalities in our nodes.

Could someone give me a hand on this?

Thanks in advance,

AG.