You can generate a public link that allows anyone access to your design language, no account required. To do so:
Find the Kit you wish to share and select the “Share Kit” button
Select "Enable public access"
Select "Copy link".
Password protection You can password protect a public link so only people with the link and password can access the kit. This functionality is only available in Lingo's Enterprise tier.
To revoke public access simply select "Revoke public access". Enabling and disabling public access can be done both in the Mac app and on the web.
Mac app
Web