I noticed that others have an option to “Publish as Tool” under the API Access section! 
Confirm the version; the workflow can be published as a tool.
Placeholder text: 11111111111
Only administrators have permission to publish.
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Has this been resolved? I’m also encountering this issue, and I’m a new user.
Everyone is advised to check out this post, which contains clear answers.
Users may be restricted from publishing or seeing tools due to their role within the workspace or app. It is recommended to have the workspace administrator confirm that the user has permission to use/view tools.
From the screenshot you shared, it looks like this is a chatflow. A chatflow can’t be published as a tool. Only workflows support.