By default, an API test project is owned by the user who created it.
A test project can be shared with other users and with user groups as editors, but it can only have a single owner.
If needed, you can transfer the project ownership to another user with the Talend Cloud API Tester management API. Since the project can only have one owner, when transferring ownership to another user, you need to add yourself as an editor if you want to keep access to the project. For more information, see Transferring the ownership of an API test project in Talend Cloud API Tester.
Note: This feature only allows you to transfer ownership of test projects; you cannot transfer ownership of environments.