I want to use Box on my web application using Box Embed.
But to get to specific folder, I have to use BOX API to get folder information and build my box embed programatically.
With Box API, I need to authenticate user before I can make API calls, I am done with this part, but is there a way to get token without showing the user the login form?
No, you must be granted an access token through the standard OAuth2 workflow prior to accessing a user's Box via the API.