Publish your documentation
Until you publish your API documentation, it is only viewable as a preview. This is shown by the fact that it says PREVIEW in the header bar DOCUMENTATION button.
In order to share your API documentation with people who aren't in your team (and to anyone with an internet connection), you'll need to publish your documentation.
To publish your API documentation, go to the settings page, either by going to the APIs drop-down menu and clicking on API Settings, or by clicking on the gear icon in the left panel.
From the settings panel, switch the Published button from OFF to ON.
Make sure your API documentation has a valid URL by picking a subdomain. This is the address that will be used to access your documentation on the web.
Once you have chosen a subdomain, click Save. Your API documentation is now published, congratulations!