I was wonder if an API for this exists, as a SAAS solution, or even open source microservice kindof thing. Anything really.
- User Anne, invites Bob by providing an email-address or phone number. - Service Foo then sends out a message including a secret token (in the form of an url or a number) - Bob follows the url, or otherwise provides the token to service Foo. - Bob is now confirmed (actually, it is confirmed he has access to the communication channel provided by Anne)
The reason is not that I want to use (allthough I do) but because I'm looking into building it.
So, the next question would be: would anyone be interested in using such a service? Obviously the details matter a lot, like the exact setup, workflows, storage of user data, and features such as the invitation channels (mail, SMS, telegram, etc), but as a general idea: would you consider buying/paying for an external service for your next "invitation" workflow?