I don´t get the "Real-Time" part.
Are the API requests ensured to be responded by a given time? That would be sensational.
Is it meant to be compatible with the newest Linux kernel shipping RT out-of-the-box? ;)
1. Feathers supports websockets, so you can push data to clients as the data is created/updated, etc.
2. The Feathers server can decide what types of events to send to the client. If you have multiple servers, you can keep the events in-sync by using redis/activemq with the feathers-sync module.