# Specifications Query

Permission | API | Action | Dependent Permission
--- | --- | --- | ---
Querying Specifications and Expansion Details About ECSs | GET /v1/{project_id}/cloudservers/flavors | ecs:cloudServerFlavors:get | N/A
Querying Details About extra_specs of an ECS (Native OpenStack API) | GET /v2/{project_id}/flavors/{flavors_id}/os-extra_specs GET /v2.1/{project_id}/flavors/{flavors_id}/os-extra_specs | ecs:flavors:get | N/A

Parent topic: Permissions Policies and Supported Actions