Is there any Api call for getting Global permissions ?
Can you share more about what you mean when you say, “global permissions?”
I know some individual resources can be queried for permissions relating to them. For instance: https://developer.atlassian.com/cloud/confluence/rest/api-group-content-permissions/#api-wiki-rest-api-content-id-permission-check-post
It might also be helpful to expand on the use-case you’re building to make sure there aren’t alternative approaches, as well.