It is currently possible to add a SP over the REST API, but it's not possible to make updates to an existing SP or to delete an SP. The REST API should be extended to allow these operations to be performed.
This issue ticket was originally removed from the tracker as it clashed with the pull request. See upstream ticket for migration details.
Metadata Update from @t0xic0der: - Issue close_status updated to: Fixed - Issue status updated to: Closed (was: Open)