Is it possible to tie a third-party API to google sheets?

Question

Google

In general, we maintain our client base in Google spreadsheets, which is very convenient for us. There was a need to bind sending SMS individually to clients. Ideally, each line needs a button so that you can send an SMS message that has already been formed in a specific cell. I found services that have an API, but I can’t understand how to connect it all together

Answer 1

https://support.google.com/docs/answer/2942256?hl=en