| List custom attributes | GET | /custom_attributes | Returns one page of the custom attributes you have defined. |
| Create a custom attribute | POST | /custom_attributes | Creates a custom attribute and returns it, under custom_attribute. |
| Delete a custom attribute | DELETE | /custom_attributes/{custom_attribute_id} | Deletes a custom attribute and returns no body. |
| Retrieve a custom attribute | GET | /custom_attributes/{custom_attribute_id} | Returns one custom attribute, under custom_attribute. |
| Update a custom attribute | PATCH | /custom_attributes/{custom_attribute_id} | Changes a custom attribute’s fields and returns the updated attribute. |