diff --git a/clients/customer-portal-client/src/openapi-runtime.json b/clients/customer-portal-client/src/openapi-runtime.json
index 5ee1127a..ac5741b9 100644
--- a/clients/customer-portal-client/src/openapi-runtime.json
+++ b/clients/customer-portal-client/src/openapi-runtime.json
@@ -1750,6 +1750,51 @@
         "responses": {}
       }
     },
+    "/v2/portal/entity/{slug}": {
+      "post": {
+        "operationId": "createPortalUserEntity",
+        "deprecated": true,
+        "parameters": [
+          {
+            "in": "path",
+            "name": "slug",
+            "required": true
+          }
+        ],
+        "requestBody": {
+          "required": true,
+          "content": {
+            "application/json": {}
+          }
+        },
+        "responses": {}
+      }
+    },
+    "/v2/portal/entity/{slug}/{id}": {
+      "patch": {
+        "operationId": "patchPortalUserEntity",
+        "deprecated": true,
+        "parameters": [
+          {
+            "in": "path",
+            "name": "slug",
+            "required": true
+          },
+          {
+            "in": "path",
+            "name": "id",
+            "required": true
+          }
+        ],
+        "requestBody": {
+          "required": true,
+          "content": {
+            "application/json": {}
+          }
+        },
+        "responses": {}
+      }
+    },
     "/v2/portal/can-trigger-portal-flow": {
       "post": {
         "operationId": "canTriggerPortalFlow",
diff --git a/clients/customer-portal-client/src/openapi.d.ts b/clients/customer-portal-client/src/openapi.d.ts
index 997e1844..743e7cc6 100644
--- a/clients/customer-portal-client/src/openapi.d.ts
+++ b/clients/customer-portal-client/src/openapi.d.ts
@@ -9267,6 +9267,30 @@ declare namespace Paths {
             export type $500 = Components.Responses.InternalServerError;
         }
     }
+    namespace CreatePortalUserEntity {
+        namespace Parameters {
+            /**
+             * example:
+             * asset
+             */
+            export type Slug = "asset";
+        }
+        export interface PathParameters {
+            slug: /**
+             * example:
+             * asset
+             */
+            Parameters.Slug;
+        }
+        export type RequestBody = Components.Schemas.Entity;
+        namespace Responses {
+            export type $201 = /* Response for entity get request */ Components.Schemas.EntityResponse;
+            export type $400 = Components.Responses.InvalidRequest;
+            export type $401 = Components.Responses.Unauthorized;
+            export type $403 = Components.Responses.Forbidden;
+            export type $500 = Components.Responses.InternalServerError;
+        }
+    }
     namespace CreateUser {
         namespace Parameters {
             export type Origin = /* Origin of the portal */ Components.Schemas.Origin;
@@ -13593,6 +13617,38 @@ declare namespace Paths {
             export type $500 = Components.Responses.InternalServerError;
         }
     }
+    namespace PatchPortalUserEntity {
+        namespace Parameters {
+            export type Id = /**
+             * Entity ID
+             * example:
+             * 5da0a718-c822-403d-9f5d-20d4584e0528
+             */
+            Components.Schemas.EntityId /* uuid */;
+            /**
+             * example:
+             * asset
+             */
+            export type Slug = "asset";
+        }
+        export interface PathParameters {
+            slug: /**
+             * example:
+             * asset
+             */
+            Parameters.Slug;
+            id: Parameters.Id;
+        }
+        export type RequestBody = Components.Schemas.Entity;
+        namespace Responses {
+            export type $200 = /* Response for entity get request */ Components.Schemas.EntityResponse;
+            export type $400 = Components.Responses.InvalidRequest;
+            export type $401 = Components.Responses.Unauthorized;
+            export type $403 = Components.Responses.Forbidden;
+            export type $404 = Components.Responses.NotFound;
+            export type $500 = Components.Responses.InternalServerError;
+        }
+    }
     namespace PortalProxyExecute {
         export interface RequestBody {
             /**
@@ -16092,6 +16148,28 @@ export interface OperationMethods {
     data?: Paths.SearchPortalUserEntities.RequestBody,
     config?: AxiosRequestConfig  
   ): OperationResponse<Paths.SearchPortalUserEntities.Responses.$200>
+  /**
+   * createPortalUserEntity - createPortalUserEntity
+   * 
+   * **EXPERIMENTAL — do not rely on this endpoint.** It is unstable, currently limited to the `asset` schema, and may change or be removed without notice; third parties must not build on it yet.
+   * Create a single entity on behalf of a portal user. The schema slug is passed in the path and must be one of the supported (experimental) schemas; field-level permissions are enforced by the caller's role grants. The request body is the entity to create (its attributes); the created entity is automatically related to the caller's contact.
+   */
+  'createPortalUserEntity'(
+    parameters?: Parameters<Paths.CreatePortalUserEntity.PathParameters> | null,
+    data?: Paths.CreatePortalUserEntity.RequestBody,
+    config?: AxiosRequestConfig  
+  ): OperationResponse<Paths.CreatePortalUserEntity.Responses.$201>
+  /**
+   * patchPortalUserEntity - patchPortalUserEntity
+   * 
+   * **EXPERIMENTAL — do not rely on this endpoint.** It is unstable, currently limited to the `asset` schema, and may change or be removed without notice; third parties must not build on it yet.
+   * Partially update a single entity on behalf of a portal user. The schema slug and entity id are passed in the path; the schema must be one of the supported (experimental) schemas. Field-level permissions are enforced by the caller's role grants (use null to clear a field, e.g. external_id). The target entity must already be owned by the caller's contact.
+   */
+  'patchPortalUserEntity'(
+    parameters?: Parameters<Paths.PatchPortalUserEntity.PathParameters> | null,
+    data?: Paths.PatchPortalUserEntity.RequestBody,
+    config?: AxiosRequestConfig  
+  ): OperationResponse<Paths.PatchPortalUserEntity.Responses.$200>
   /**
    * canTriggerPortalFlow - canTriggerPortalFlow
    * 
@@ -17850,6 +17928,32 @@ export interface PathsDictionary {
       config?: AxiosRequestConfig  
     ): OperationResponse<Paths.SearchPortalUserEntities.Responses.$200>
   }
+  ['/v2/portal/entity/{slug}']: {
+    /**
+     * createPortalUserEntity - createPortalUserEntity
+     * 
+     * **EXPERIMENTAL — do not rely on this endpoint.** It is unstable, currently limited to the `asset` schema, and may change or be removed without notice; third parties must not build on it yet.
+     * Create a single entity on behalf of a portal user. The schema slug is passed in the path and must be one of the supported (experimental) schemas; field-level permissions are enforced by the caller's role grants. The request body is the entity to create (its attributes); the created entity is automatically related to the caller's contact.
+     */
+    'post'(
+      parameters?: Parameters<Paths.CreatePortalUserEntity.PathParameters> | null,
+      data?: Paths.CreatePortalUserEntity.RequestBody,
+      config?: AxiosRequestConfig  
+    ): OperationResponse<Paths.CreatePortalUserEntity.Responses.$201>
+  }
+  ['/v2/portal/entity/{slug}/{id}']: {
+    /**
+     * patchPortalUserEntity - patchPortalUserEntity
+     * 
+     * **EXPERIMENTAL — do not rely on this endpoint.** It is unstable, currently limited to the `asset` schema, and may change or be removed without notice; third parties must not build on it yet.
+     * Partially update a single entity on behalf of a portal user. The schema slug and entity id are passed in the path; the schema must be one of the supported (experimental) schemas. Field-level permissions are enforced by the caller's role grants (use null to clear a field, e.g. external_id). The target entity must already be owned by the caller's contact.
+     */
+    'patch'(
+      parameters?: Parameters<Paths.PatchPortalUserEntity.PathParameters> | null,
+      data?: Paths.PatchPortalUserEntity.RequestBody,
+      config?: AxiosRequestConfig  
+    ): OperationResponse<Paths.PatchPortalUserEntity.Responses.$200>
+  }
   ['/v2/portal/can-trigger-portal-flow']: {
     /**
      * canTriggerPortalFlow - canTriggerPortalFlow
diff --git a/clients/customer-portal-client/src/openapi.json b/clients/customer-portal-client/src/openapi.json
index f860f363..56c681be 100644
--- a/clients/customer-portal-client/src/openapi.json
+++ b/clients/customer-portal-client/src/openapi.json
@@ -7034,6 +7034,156 @@
         }
       }
     },
+    "/v2/portal/entity/{slug}": {
+      "post": {
+        "operationId": "createPortalUserEntity",
+        "summary": "createPortalUserEntity",
+        "description": "**EXPERIMENTAL — do not rely on this endpoint.** It is unstable, currently limited to the `asset` schema, and may change or be removed without notice; third parties must not build on it yet.\nCreate a single entity on behalf of a portal user. The schema slug is passed in the path and must be one of the supported (experimental) schemas; field-level permissions are enforced by the caller's role grants. The request body is the entity to create (its attributes); the created entity is automatically related to the caller's contact.",
+        "deprecated": true,
+        "tags": [
+          "ECP"
+        ],
+        "security": [
+          {
+            "PortalAuth": []
+          }
+        ],
+        "parameters": [
+          {
+            "in": "path",
+            "name": "slug",
+            "description": "Entity schema slug to create. Limited to the supported (experimental) schemas, currently `asset`.",
+            "required": true,
+            "schema": {
+              "type": "string",
+              "enum": [
+                "asset"
+              ],
+              "example": "asset"
+            }
+          }
+        ],
+        "requestBody": {
+          "required": true,
+          "content": {
+            "application/json": {
+              "schema": {
+                "$ref": "#/components/schemas/Entity"
+              },
+              "example": {
+                "title": "PV Inverter",
+                "manufacturer": "SMA",
+                "external_id": "device-123"
+              }
+            }
+          }
+        },
+        "responses": {
+          "201": {
+            "description": "The entity has been created successfully for the portal user.",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/EntityResponse"
+                }
+              }
+            }
+          },
+          "400": {
+            "$ref": "#/components/responses/InvalidRequest"
+          },
+          "401": {
+            "$ref": "#/components/responses/Unauthorized"
+          },
+          "403": {
+            "$ref": "#/components/responses/Forbidden"
+          },
+          "500": {
+            "$ref": "#/components/responses/InternalServerError"
+          }
+        }
+      }
+    },
+    "/v2/portal/entity/{slug}/{id}": {
+      "patch": {
+        "operationId": "patchPortalUserEntity",
+        "summary": "patchPortalUserEntity",
+        "description": "**EXPERIMENTAL — do not rely on this endpoint.** It is unstable, currently limited to the `asset` schema, and may change or be removed without notice; third parties must not build on it yet.\nPartially update a single entity on behalf of a portal user. The schema slug and entity id are passed in the path; the schema must be one of the supported (experimental) schemas. Field-level permissions are enforced by the caller's role grants (use null to clear a field, e.g. external_id). The target entity must already be owned by the caller's contact.",
+        "deprecated": true,
+        "tags": [
+          "ECP"
+        ],
+        "security": [
+          {
+            "PortalAuth": []
+          }
+        ],
+        "parameters": [
+          {
+            "in": "path",
+            "name": "slug",
+            "description": "Entity schema slug to update. Limited to the supported (experimental) schemas, currently `asset`.",
+            "required": true,
+            "schema": {
+              "type": "string",
+              "enum": [
+                "asset"
+              ],
+              "example": "asset"
+            }
+          },
+          {
+            "in": "path",
+            "name": "id",
+            "description": "ID of the entity to update. Must already be owned by the caller's contact.",
+            "required": true,
+            "schema": {
+              "$ref": "#/components/schemas/EntityId"
+            }
+          }
+        ],
+        "requestBody": {
+          "required": true,
+          "content": {
+            "application/json": {
+              "schema": {
+                "$ref": "#/components/schemas/Entity"
+              },
+              "example": {
+                "external_id": null
+              }
+            }
+          }
+        },
+        "responses": {
+          "200": {
+            "description": "The entity has been updated successfully for the portal user.",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/EntityResponse"
+                }
+              }
+            }
+          },
+          "400": {
+            "$ref": "#/components/responses/InvalidRequest"
+          },
+          "401": {
+            "$ref": "#/components/responses/Unauthorized"
+          },
+          "403": {
+            "$ref": "#/components/responses/Forbidden"
+          },
+          "404": {
+            "$ref": "#/components/responses/NotFound"
+          },
+          "500": {
+            "$ref": "#/components/responses/InternalServerError"
+          }
+        }
+      }
+    },
     "/v2/portal/can-trigger-portal-flow": {
       "post": {
         "operationId": "canTriggerPortalFlow",