Notifications API Saas (Sendbird/Getstream for notifications)

Hey!

I was wondering what were your thoughts an API service that you can integrate to which can provide notification capabilities right out of the box without you having to implement the logic and tables for notifications, kind of what getstream.io is for Feeds an Chats and SendBird also is for chats.

The problem that I see is that each startup has to develop their own notifications system (IndieHackers included) so for new startups it could be easier to integrate with a 3rd party rather than having your own implementation (if the third party is flexible enough for your needs). It would reduce the time it takes to launch a SaaS with notifications included.

Let me know what you guys think!