diff --git a/api-ref/source/parameters.yaml b/api-ref/source/parameters.yaml
index 4e9fc8f0f0cf..c4ec067475a7 100644
--- a/api-ref/source/parameters.yaml
+++ b/api-ref/source/parameters.yaml
@@ -2930,24 +2930,76 @@ server_groups_quota_optional:
   in: body
   required: false
   type: integer
+server_hostname:
+  in: body
+  required: true
+  type: string
+  description: |
+    The hostname set on the instance when it is booted.
+  min_version: 2.3
 server_id:
   description: |
     The UUID of the server.
   in: body
   required: true
   type: string
+server_kernel_id:
+  in: body
+  required: true
+  type: string
+  description: |
+    The UUID of the kernel image when using an AMI. Will be null if not.
+  min_version: 2.3
+server_launch_index:
+  in: body
+  required: true
+  type: int
+  description: |
+    When servers are launched via multiple create, this is the
+    sequence in which the servers were launched.
+  min_version: 2.3
 server_name:
   description: |
     The server name.
   in: body
   required: true
   type: string
+server_ramdisk_id:
+  in: body
+  required: true
+  type: string
+  description: |
+    The UUID of the ramdisk image when using an AMI. Will be null if not.
+  min_version: 2.3
+server_reservation_id:
+  in: body
+  required: true
+  type: string
+  description: |
+    The reservation id for the server. This is an id that can
+    be useful in tracking groups of servers created with multiple
+    create, that will all have the same reservation_id.
+  min_version: 2.3
+server_root_device_name:
+  in: body
+  required: true
+  type: string
+  description: |
+    The root device name for the instance
+  min_version: 2.3
 server_status:
   description: |
     The server status.
   in: body
   required: true
   type: string
+server_user_data:
+  in: body
+  required: true
+  type: string
+  description: |
+    The user_data the instance was created with.
+  min_version: 2.3
 server_uuid:
   description: |
     The UUID of the server instance to which the API dispatches the event.  You must
diff --git a/api-ref/source/servers.inc b/api-ref/source/servers.inc
index 719b8d1db701..5afb3735645d 100644
--- a/api-ref/source/servers.inc
+++ b/api-ref/source/servers.inc
@@ -350,6 +350,13 @@ Response
   - tenant_id: tenant_id_body
   - updated: updated
   - user_id: user_id
+  - OS-EXT-SERV-ATTR:hostname: server_hostname
+  - OS-EXT-SERV-ATTR:reservation_id: server_reservation_id
+  - OS-EXT-SERV-ATTR:launch_index: server_launch_index
+  - OS-EXT-SERV-ATTR:kernel_id: server_kernel_id
+  - OS-EXT-SERV-ATTR:ramdisk_id: server_ramdisk_id
+  - OS-EXT-SERV-ATTR:root_device_name: server_root_device_name
+  - OS-EXT-SERV-ATTR:user_data: server_user_data
 
 **Example Create Server: JSON response**
 
@@ -445,6 +452,13 @@ Response
   - tenant_id: tenant_id_body
   - updated: updated
   - user_id: user_id
+  - OS-EXT-SERV-ATTR:hostname: server_hostname
+  - OS-EXT-SERV-ATTR:reservation_id: server_reservation_id
+  - OS-EXT-SERV-ATTR:launch_index: server_launch_index
+  - OS-EXT-SERV-ATTR:kernel_id: server_kernel_id
+  - OS-EXT-SERV-ATTR:ramdisk_id: server_ramdisk_id
+  - OS-EXT-SERV-ATTR:root_device_name: server_root_device_name
+  - OS-EXT-SERV-ATTR:user_data: server_user_data
 
 **Example List Servers Detailed: JSON response**
 
@@ -525,6 +539,13 @@ Response
   - updated: updated
   - user_id: user_id
   - fault: fault
+  - OS-EXT-SERV-ATTR:hostname: server_hostname
+  - OS-EXT-SERV-ATTR:reservation_id: server_reservation_id
+  - OS-EXT-SERV-ATTR:launch_index: server_launch_index
+  - OS-EXT-SERV-ATTR:kernel_id: server_kernel_id
+  - OS-EXT-SERV-ATTR:ramdisk_id: server_ramdisk_id
+  - OS-EXT-SERV-ATTR:root_device_name: server_root_device_name
+  - OS-EXT-SERV-ATTR:user_data: server_user_data
 
 **Example Show Server Details: JSON response**
 
@@ -612,6 +633,13 @@ Response
   - tenant_id: tenant_id_body
   - updated: updated
   - user_id: user_id
+  - OS-EXT-SERV-ATTR:hostname: server_hostname
+  - OS-EXT-SERV-ATTR:reservation_id: server_reservation_id
+  - OS-EXT-SERV-ATTR:launch_index: server_launch_index
+  - OS-EXT-SERV-ATTR:kernel_id: server_kernel_id
+  - OS-EXT-SERV-ATTR:ramdisk_id: server_ramdisk_id
+  - OS-EXT-SERV-ATTR:root_device_name: server_root_device_name
+  - OS-EXT-SERV-ATTR:user_data: server_user_data
 
 **Example Update server name: JSON response**