Hi Kevin. No, access to Method's developer account is internal only.
If you don't want to create a new QuickBooks Online account or don't have a Quickbooks Desktop you could sign up for Method and click "I use QuickBooks Desktop"
You can still use all of Method's APIs.
Another option is take advantage of QuickBooks Onlines's 30 day trials. You won't have to pay for QBO and can use Method's Trial at the same time.