Enable Users to Run Workflows
By default, only users signed in to the Server UI can run workflows. Curators (Server admins) can change this setting to enable users to run workflows on My Workspace—the Public tab—without logging in. To do so, enable the Unregistered Users Can Run Workflow on the Homepage setting on the Configuration tab on the Settings page in the Admin interface.
There is a limitation to this functionality that prevents anonymous users to run public workflows if the Workflow Credentials Setting is set to anything other than "Use Default Credentials". For more information about the Workflow Credentials Setting, go to Alteryx Server Settings.