MLB.TV Help Center
How do I log into my MLB account without a password
If you would like to log into your MLB account without a password, you may simply enter your registered MLB account email address on our login page here
After entering the email and hitting continue, you may verify your MLB account with your registered email (instead of verify account with password) to finish logging in.
After clicking “Verify Account with Email” a message will be sent to the email address linked with the account for confirmation.
The email will contain a link to finish the login request. Simply click on the "Log In" button using the same device to finish the login.
Please note: You must open the email link on the same device that you requested the email link from. If you attempt to open the link sent via email on a different device, you will be unable to login. You will be redirected to "Back to Sign In."