Many sensors would benefit from the Statistics Graph card but need the state_class to be set, which is currently impossible in the rest sensor.
https://www.home-assistant.io/integrations/rest/
# Example configuration.yaml entry
rest:
- authentication: basic
username: "admin"
password: "password"
scan_interval: 60
resource: http://192.168.1.12/status.xml
sensor:
- name: "Adult Pool Data System"
state_class: "measurement"
<snipped other settings>