Liz, I went back and got it working. Here’s what happened.
I had a brand new Airtable account with no tables in it. I was trying to connect my Typeform - I’d enter the API from Airtable and it would fail in the Typeform connector popup window with a useless “”Oops! Something went wrong, please try again” message.
Then I went back to Airtable and created a table.
Now I was able to connect Typeform to Airtable using the the API connector.
Maybe this should be part of the instructions from the Typeform side - there must already be a table/base on the Airtable side for the connection to work.