Postman API- Filter APIs by workspace

Hi,
I’m looking for a way to filter all APIs by a workspace id. But couldn’t find any relationship between API and workspace on postman API.

Currently, there is no workspace_id inside the get API response object (api.getpostman.com/apis/{api_id})

I also check the get workspace request (api.getpostman.com/workspaces/{workspace_id}) and I have found an array of collections and an array of environments inside the response object but there’s no array for related APIs.

Could you kindly advice me to filter my APIs by a workspace?

Thank you!