Heartbeat
Try HeartbeatHeartbeat Overview
An online service that transforms your REST endpoints into streaming APIs without having to write any code. Heartbeat runs a worker process that will poll your REST API at the polling frequency you specify in the dashboard and show the changes via an elegant realtime endpoint, and can store updates for up to six hours. It's free to use while in beta with up to five REST endpoints per user and a minimum polling frequency of 1 minute.
