Just wanted to let you know that there was an issue with the curl example under DTable Server API.
on zsh (mac) i had to modify the multi parameter request header for curl as follows:
curl -H 'Accept: application/json; charset=utf-8; indent=4' -H 'Authorization: Token the_token_here' https://cloud.seatable.io/api/v2.1/dtable/app-access-token/
i had to add an additional
-H Background Information - stackoverflow