diff --git a/piker/brokers/deribit/api.py b/piker/brokers/deribit/api.py
index 0fcada2b..f39815ec 100644
--- a/piker/brokers/deribit/api.py
+++ b/piker/brokers/deribit/api.py
@@ -246,6 +246,20 @@ def get_config() -> dict[str, Any]:
 
     return section
 
+def check_if_complete(
+    oi: dict[str, dict[str, Decimal | None]],
+
+    ) -> bool:
+        for strike in oi:
+            if (
+                oi[strike]['C'] == None
+                or
+                oi[strike]['P'] == None
+            ):
+                return False
+
+        return True
+
 
 class Client:
     '''
@@ -410,6 +424,27 @@ class Client:
 
         return response_list
 
+    def get_strikes_dict(
+        self,
+        instruments: list[Symbol],
+
+    ) -> dict[str, dict[str, Decimal | None]]:
+        """
+        Get a dict with strike prices as keys.
+        """
+
+        response: dict[str, dict[str, Decimal | None]] = {}
+
+        for i in range(len(instruments)):
+            element = instruments[i]
+            strike = f'{str(element).split('-')[1]}'
+            response[f'{strike}'] = {
+                'C': None,
+                'P': None,
+            }
+
+        return response
+
     async def submit_limit(
         self,
         symbol: str,