What Salesforce Editions work?
We support only the Enterprise & Ultimate editions of Salesforce for now. Even with these editions - you will need to enable the API in your account
For Professional edition, you may contact Salesforce support and get the API enabled for the account. You can then use it with Automat IO.
If you see this kind of errors with "API_DISABLED_FOR_ORG", you will need to get API enabled for your account. Please contact your Salesforce Admin or support.