> linked JSON documents

Isn't that REST?

A REST API must not define fixed resource names or hierarchies (an obvious coupling of client and server). Servers must have the freedom to control their own namespace. Instead, allow servers to instruct clients on how to construct appropriate URIs, such as is done in HTML forms and URI templates, by defining those instructions within media types and link relations. https://roy.gbiv.com/untangled/2008/rest-apis-must-be-hypert...

The article mentions rate limiting by connections:

> limit users to 60 connections per minute

You can make multiple requests over a single connection.