How to get my token's API endpoint that displays ONLY 'Total Supply' as a numerical value for CMC listing request?

If anybody already has a filled file, will be very supportive.

CMC Form: https://docs.google.com/spreadsheets/d/1ON2o9fZtdj6aa_uaT7ALtGx1VxFnIDUi8-uS-fWji0o/edit#gid=1181839735

It seems like you should set up a service to provide the API.

Maybe. I wish somebody can help.