diff --git a/apify-api/openapi/paths/datasets/datasets@{datasetId}@items.yaml b/apify-api/openapi/paths/datasets/datasets@{datasetId}@items.yaml
index f2dda00bcc..bde66cf2c9 100644
--- a/apify-api/openapi/paths/datasets/datasets@{datasetId}@items.yaml
+++ b/apify-api/openapi/paths/datasets/datasets@{datasetId}@items.yaml
@@ -367,6 +367,14 @@ get:
       schema:
         type: boolean
         example: false
+    - name: signature
+      in: query
+      description: Signature used to access the items.
+      required: false
+      style: simple
+      schema:
+        type: string
+        example: 2wTI46Bg8qWQrV7tavlPI
   responses:
     '200':
       description: ''
diff --git a/apify-api/openapi/paths/key-value-stores/key-value-stores@{storeId}@keys.yaml b/apify-api/openapi/paths/key-value-stores/key-value-stores@{storeId}@keys.yaml
index 6dde0abd91..6c0335a230 100644
--- a/apify-api/openapi/paths/key-value-stores/key-value-stores@{storeId}@keys.yaml
+++ b/apify-api/openapi/paths/key-value-stores/key-value-stores@{storeId}@keys.yaml
@@ -48,6 +48,14 @@ get:
       schema:
         type: string
         example: post-images-
+    - name: signature
+      in: query
+      description: Signature used to access the keys.
+      required: false
+      style: simple
+      schema:
+        type: string
+        example: 2wTI46Bg8qWQrV7tavlPI
   responses:
     '200':
       description: ''
diff --git a/apify-api/openapi/paths/key-value-stores/key-value-stores@{storeId}@records@{recordKey}.yaml b/apify-api/openapi/paths/key-value-stores/key-value-stores@{storeId}@records@{recordKey}.yaml
index 38feffc9b1..85a414ad69 100644
--- a/apify-api/openapi/paths/key-value-stores/key-value-stores@{storeId}@records@{recordKey}.yaml
+++ b/apify-api/openapi/paths/key-value-stores/key-value-stores@{storeId}@records@{recordKey}.yaml
@@ -32,6 +32,14 @@ get:
       schema:
         type: string
         example: someKey
+    - name: signature
+      in: query
+      description: Signature used to access the record.
+      required: false
+      style: simple
+      schema:
+        type: string
+        example: 2wTI46Bg8qWQrV7tavlPI
   responses:
     '200':
       description: ''