diff --git a/specification/containerservice/resource-manager/Microsoft.ContainerService/aks/stable/2025-04-01/examples/AgentPoolsCreate_TypeVirtualMachines.json b/specification/containerservice/resource-manager/Microsoft.ContainerService/aks/stable/2025-04-01/examples/AgentPoolsCreate_TypeVirtualMachines.json
new file mode 100644
index 000000000000..60494257beee
--- /dev/null
+++ b/specification/containerservice/resource-manager/Microsoft.ContainerService/aks/stable/2025-04-01/examples/AgentPoolsCreate_TypeVirtualMachines.json
@@ -0,0 +1,139 @@
+{
+  "parameters": {
+    "api-version": "2025-04-01",
+    "subscriptionId": "00000000-0000-0000-0000-000000000000",
+    "resourceGroupName": "rg1",
+    "resourceName": "clustername1",
+    "agentPoolName": "agentpool1",
+    "parameters": {
+      "properties": {
+        "orchestratorVersion": "1.9.6",
+        "osType": "Linux",
+        "tags": {
+          "name1": "val1"
+        },
+        "nodeLabels": {
+          "key1": "val1"
+        },
+        "nodeTaints": [
+          "Key1=Value1:NoSchedule"
+        ],
+        "type": "VirtualMachines",
+        "virtualMachinesProfile": {
+          "scale": {
+            "manual": [
+              {
+                "size": "Standard_D2_v2",
+                "count": 3
+              },
+              {
+                "size": "Standard_D2_v3",
+                "count": 2
+              }
+            ]
+          }
+        }
+      }
+    }
+  },
+  "responses": {
+    "200": {
+      "body": {
+        "id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
+        "type": "Microsoft.ContainerService/managedClusters/agentPools",
+        "name": "agentpool1",
+        "properties": {
+          "provisioningState": "Succeeded",
+          "orchestratorVersion": "1.9.6",
+          "currentOrchestratorVersion": "1.9.6",
+          "maxPods": 110,
+          "osType": "Linux",
+          "tags": {
+            "name1": "val1"
+          },
+          "nodeLabels": {
+            "key1": "val1"
+          },
+          "nodeTaints": [
+            "Key1=Value1:NoSchedule"
+          ],
+          "type": "VirtualMachines",
+          "virtualMachinesProfile": {
+            "scale": {
+              "manual": [
+                {
+                  "size": "Standard_D2_v2",
+                  "count": 3
+                },
+                {
+                  "size": "Standard_D2_v3",
+                  "count": 2
+                }
+              ]
+            }
+          },
+          "virtualMachineNodesStatus": [
+            {
+              "size": "Standard_D2_v2",
+              "count": 3
+            },
+            {
+              "size": "Standard_D2_v3",
+              "count": 2
+            }
+          ],
+          "nodeImageVersion": "AKSUbuntu-1804gen2containerd-2021.09.11"
+        }
+      }
+    },
+    "201": {
+      "body": {
+        "id": "/subscriptions/00000000-0000-0000-0000-000000000000/resourcegroups/rg1/providers/Microsoft.ContainerService/managedClusters/clustername1/agentPools/agentpool1",
+        "type": "Microsoft.ContainerService/managedClusters/agentPools",
+        "name": "agentpool1",
+        "properties": {
+          "provisioningState": "Creating",
+          "orchestratorVersion": "1.9.6",
+          "currentOrchestratorVersion": "1.9.6",
+          "maxPods": 110,
+          "osType": "Linux",
+          "tags": {
+            "name1": "val1"
+          },
+          "nodeLabels": {
+            "key1": "val1"
+          },
+          "nodeTaints": [
+            "Key1=Value1:NoSchedule"
+          ],
+          "type": "VirtualMachines",
+          "virtualMachinesProfile": {
+            "scale": {
+              "manual": [
+                {
+                  "size": "Standard_D2_v2",
+                  "count": 3
+                },
+                {
+                  "size": "Standard_D2_v3",
+                  "count": 2
+                }
+              ]
+            }
+          },
+          "virtualMachineNodesStatus": [
+            {
+              "size": "Standard_D2_v2",
+              "count": 3
+            },
+            {
+              "size": "Standard_D2_v3",
+              "count": 2
+            }
+          ],
+          "nodeImageVersion": "AKSUbuntu-1804gen2containerd-2021.09.11"
+        }
+      }
+    }
+  }
+}
diff --git a/specification/containerservice/resource-manager/Microsoft.ContainerService/aks/stable/2025-04-01/managedClusters.json b/specification/containerservice/resource-manager/Microsoft.ContainerService/aks/stable/2025-04-01/managedClusters.json
index ac510de799dc..a25492754664 100644
--- a/specification/containerservice/resource-manager/Microsoft.ContainerService/aks/stable/2025-04-01/managedClusters.json
+++ b/specification/containerservice/resource-manager/Microsoft.ContainerService/aks/stable/2025-04-01/managedClusters.json
@@ -1225,6 +1225,9 @@
           },
           "Create Agent Pool with Dedicated Host Group": {
             "$ref": "./examples/AgentPoolsCreate_DedicatedHostGroup.json"
+          },
+          "Create Agent Pool with VirtualMachines pool type": {
+            "$ref": "./examples/AgentPoolsCreate_TypeVirtualMachines.json"
           }
         }
       },
@@ -3259,6 +3262,68 @@
         "clientId"
       ]
     },
+    "VirtualMachinesProfile": {
+      "type": "object",
+      "properties": {
+        "scale": {
+          "$ref": "#/definitions/ScaleProfile",
+          "description": "Specifications on how to scale a VirtualMachines agent pool."
+        }
+      },
+      "description": "Specifications on VirtualMachines agent pool."
+    },
+    "ScaleProfile": {
+      "type": "object",
+      "properties": {
+        "manual": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/ManualScaleProfile"
+          },
+          "x-ms-identifiers": [],
+          "description": "Specifications on how to scale the VirtualMachines agent pool to a fixed size."
+        }
+      },
+      "description": "Specifications on how to scale a VirtualMachines agent pool."
+    },
+    "ManualScaleProfile": {
+      "type": "object",
+      "properties": {
+        "size": {
+          "type": "string",
+          "description": "VM size that AKS will use when creating and scaling e.g. 'Standard_E4s_v3', 'Standard_E16s_v3' or 'Standard_D16s_v5'."
+        },
+        "count": {
+          "type": "integer",
+          "format": "int32",
+          "description": "Number of nodes."
+        }
+      },
+      "description": "Specifications on number of machines."
+    },
+    "VirtualMachineNodesStatus": {
+      "type": "array",
+      "items": {
+        "$ref": "#/definitions/VirtualMachineNodes"
+      },
+      "x-ms-identifiers": [],
+      "description": "The status of nodes in a VirtualMachines agent pool."
+    },
+    "VirtualMachineNodes": {
+      "type": "object",
+      "properties": {
+        "size": {
+          "type": "string",
+          "description": "The VM size of the agents used to host this group of nodes."
+        },
+        "count": {
+          "type": "integer",
+          "format": "int32",
+          "description": "Number of nodes."
+        }
+      },
+      "description": "Current status on a group of nodes of the same vm size."
+    },
     "ManagedClusterAgentPoolProfileProperties": {
       "type": "object",
       "properties": {
@@ -3516,6 +3581,12 @@
         "gatewayProfile": {
           "$ref": "#/definitions/AgentPoolGatewayProfile",
           "description": "Profile specific to a managed agent pool in Gateway mode. This field cannot be set if agent pool mode is not Gateway."
+        },
+        "virtualMachinesProfile": {
+          "$ref": "#/definitions/VirtualMachinesProfile"
+        },
+        "virtualMachineNodesStatus": {
+          "$ref": "#/definitions/VirtualMachineNodesStatus"
         }
       },
       "description": "Properties for the container service agent pool profile."
@@ -3641,7 +3712,8 @@
       "type": "string",
       "enum": [
         "VirtualMachineScaleSets",
-        "AvailabilitySet"
+        "AvailabilitySet",
+        "VirtualMachines"
       ],
       "x-ms-enum": {
         "name": "AgentPoolType",
@@ -3654,6 +3726,10 @@
           {
             "value": "AvailabilitySet",
             "description": "Use of this is strongly discouraged."
+          },
+          {
+            "value": "VirtualMachines",
+            "description": "Create an Agent Pool backed by a Single Instance VM orchestration mode."
           }
         ]
       },