diff --git a/docs/openapi.yaml b/docs/openapi.yaml
index 61a7a97..390dff7 100644
--- a/docs/openapi.yaml
+++ b/docs/openapi.yaml
@@ -62,6 +62,57 @@ paths:
                 '415':
                     description: Sent data cannot be treated
 
+    /config/mac_address:
+        get:
+            operation: get_mac_address
+            summary: Retrieves current mac address (in the configuration)
+            responses:
+                '200':
+                    description: The mac address value
+                    content:
+                        text/plain:
+                            examples: 00:11:22:33:44:55
+        post:
+            operation: set_mac_address
+            summary: Sets current mac address (in the configuration)
+            content:
+                text/plain:
+                    description: If empty, sets to machine current mac
+                    examples:
+                        ff:ee:dd:cc:bb:aa
+            responses:
+                '200':
+                    description: The mac address value
+                    content:
+                        examples: 00:11:22:33:44:55
+
+    /config/last_update:
+        get:
+            operation: get_last_update
+            summary: Retrieves heatpump.last_update current value (in the configuration)
+            responses:
+                '200':
+                    description: The last update timestamp 
+                    content:
+                        text/plain:
+                            examples: 00:11:22:33:44:55
+        post:
+            operation: set_last_update
+            summary: Sets heatpump.last_update value (in the configuration)
+            content:
+                text/plain:
+                    description: If 0, sets to current time
+                        If < 0, sets to +x seconds
+                        If > 0, sets to -x seconds
+                    examples:
+                        0
+            responses:
+                '200':
+                    description: The last_update timestamp
+                    content:
+                        examples: 1600205650
+
+
     /variable_types:
         get:
             operation: get_variable_types