diff --git a/optimizerapi/openapi/specification.yml b/optimizerapi/openapi/specification.yml
index b5b5077..c2bcf02 100644
--- a/optimizerapi/openapi/specification.yml
+++ b/optimizerapi/openapi/specification.yml
@@ -104,4 +104,6 @@ components:
             next:
               type: array
               items:
-                type: number
\ No newline at end of file
+                type: number
+            extras:
+              type: object
\ No newline at end of file
diff --git a/optimizerapi/optimizer.py b/optimizerapi/optimizer.py
index f82ab36..e938f0a 100644
--- a/optimizerapi/optimizer.py
+++ b/optimizerapi/optimizer.py
@@ -85,7 +85,8 @@ def processResult(result, optimizer, dimensions, cfg, data, space):
     resultDetails = {
         "next": [],
         "pickled": "",
-        "expected_minimum": []
+        "expected_minimum": [],
+        "extras": {}
     }
     plots = []
     response = {
@@ -120,6 +121,7 @@ def processResult(result, optimizer, dimensions, cfg, data, space):
         addPlot(plots, "objective")
     
     resultDetails["pickled"] = securepickle.pickleToString(result, securepickle.get_crypto())
+
     # print(str(response))
     return response