@Morguk I havent noticed any format change - Grafana UI is consuming the same endpoint and I didnt had to change anything. Just make sure, your backend follows redirects when querying api. Also make sure ssl communication is working properly. Quick and dirty fix for SSL related errors is CURLOPT_SSL_VERIFYPEER and CURLOPT_SSL_VERIFYHOST option to false, if you are using curl.

@-ck Thanks for redirect link to grafana. I will create installation/migration manual and publish sources during the next week, so it can be hosted directly on ckpool server.