Why is there no API key/token being used for authentication? This is like standard practice for APIs.
Instead you use the username and password of the account. I would consider this bad security. A normal user password who manages the bookkeeping should be separated from the exposure of a potential security breach on the server where they could see the source code.
If the API client code has restricted usage on some functions a breach can not access your entire e-conomic account. But since you are using the username and password, anyone with the source code access can login and do anything on the website.
To get another user called "api" for your account you need to pay extra per month?
Are the passwords in e-conomic even encrypted?


