The Google Sheets for Coda Pack allows to fetch data from a google sheet to your coda document.
Two versions of Google Sheets for Coda Pack are available:
The Free version is free of charge but allows to fetch only a single cell and not more than 1 fetch every second.
The Paid version allows to synchronise whole sheets and named ranges without rate limits.
Free and Paid versions both require to make the spreadsheets to fetch from available through link sharing.