diff --git a/codegenerator/openapi/placement.py b/codegenerator/openapi/placement.py
index d822270..5a8084c 100644
--- a/codegenerator/openapi/placement.py
+++ b/codegenerator/openapi/placement.py
@@ -24,6 +24,7 @@ from codegenerator.common.schema import ParameterSchema
 from codegenerator.openapi import base
 from codegenerator.openapi.base import OpenStackServerSourceBase
 from codegenerator.openapi.utils import merge_api_ref_doc
+from codegenerator.openapi.placement_schemas import aggregate
 from codegenerator.openapi.placement_schemas import allocation
 from codegenerator.openapi.placement_schemas import allocation_candidate
 from codegenerator.openapi.placement_schemas import inventory
@@ -37,6 +38,7 @@ class PlacementGenerator(OpenStackServerSourceBase):
     URL_TAG_MAP = {"/versions": "version"}
 
     RESOURCE_MODULES = [
+        aggregate,
         allocation,
         allocation_candidate,
         inventory,
@@ -177,11 +179,20 @@ class PlacementGenerator(OpenStackServerSourceBase):
             contr = action
             action = None
 
+            f = controller.func
             closurevars = inspect.getclosurevars(controller.func)
             nonlocals = closurevars.nonlocals
             qualified_name: str | None = nonlocals.get("qualified_name")
             if qualified_name:
                 action = qualified_name
+            else:
+                if "f" in nonlocals:
+                    # RP aggregates uses additional decorator
+                    closurevars = inspect.getclosurevars(
+                        inspect.unwrap(nonlocals["f"])
+                    )
+                    nonlocals = closurevars.nonlocals
+                    action = nonlocals.get("qualified_name")
 
         else:
             raise RuntimeError(f"Unsupported controller {controller}")
diff --git a/codegenerator/openapi/placement_schemas/aggregate.py b/codegenerator/openapi/placement_schemas/aggregate.py
new file mode 100644
index 0000000..ac74d38
--- /dev/null
+++ b/codegenerator/openapi/placement_schemas/aggregate.py
@@ -0,0 +1,76 @@
+#   Licensed under the Apache License, Version 2.0 (the "License"); you may
+#   not use this file except in compliance with the License. You may obtain
+#   a copy of the License at
+#
+#        http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#   WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#   License for the specific language governing permissions and limitations
+#   under the License.
+#
+import copy
+
+from typing import Any
+
+from codegenerator.common.schema import TypeSchema
+from codegenerator.common.schema import ParameterSchema
+from placement.schemas import aggregate
+
+AGGREGATES_SCHEMA: dict[str, Any] = {
+    "type": "object",
+    "properties": {
+        "aggregates": {
+            "type": "array",
+            "description": "A list of aggregate uuids. Previously nonexistent aggregates are created automatically.",
+            "items": {"type": "string", "format": "uuid"},
+            "uniqueItems": True,
+        },
+        "resource_provider_generation": {
+            "type": "integer",
+            "description": "A consistent view marker that assists with the management of concurrent resource provider updates.",
+            "x-openstack": {"min-ver": "1.19"},
+        },
+    },
+    "required": ["aggregates", "resource_provider_generation"],
+    "additionalProperties": False,
+}
+
+AGGREGATE_PUT_SCHEMA: dict[str, Any] = {
+    "oneOf": [
+        {
+            **aggregate.PUT_AGGREGATES_SCHEMA_V1_1,
+            "x-openstack": {"min-ver": "1.1", "max-ver": "1.18"},
+        },
+        {
+            **aggregate.PUT_AGGREGATES_SCHEMA_V1_19,
+            "x-openstack": {"min-ver": "1.19"},
+        },
+    ],
+    "x-openstack": {"discriminator": "microversion"},
+}
+
+
+def _get_schema_ref(
+    openapi_spec, name, description=None, schema_def=None, action_name=None
+) -> tuple[str | None, str | None, bool]:
+    mime_type: str = "application/json"
+    ref: str
+    if name in [
+        "Resource_ProvidersAggregatesGet_AggregatesResponse",
+        "Resource_ProvidersAggregatesSet_AggregatesResponse",
+    ]:
+        openapi_spec.components.schemas.setdefault(
+            name, TypeSchema(**AGGREGATES_SCHEMA)
+        )
+        ref = f"#/components/schemas/{name}"
+    elif name == "Resource_ProvidersAggregatesSet_AggregatesRequest":
+        openapi_spec.components.schemas.setdefault(
+            name, TypeSchema(**AGGREGATE_PUT_SCHEMA)
+        )
+        ref = f"#/components/schemas/{name}"
+    else:
+        return (None, None, False)
+
+    return (ref, mime_type, True)