See https://winscp.net/eng/docs/guide_protecting_credentials_for_automation

Does WinSCP has the ability to encrypt the password at rest?
not sure how to achieve this? Out current batch file has cred in clear text so how can we store cred encrypted using winscp, please

It would be great if WinSCP could store the passwords of the private keys, so that in this way it is never necessary to enter them manually again.

I know that Pageant allows you to do this, but under a master password that must be specified at the beginning of the program. I was thinking of something similar to what MobaXterm does, which has a password store that you can additionally configure so that it never asks for the master password again.