diff --git a/piker/brokers/deribit/api.py b/piker/brokers/deribit/api.py
index e3c52f28..86e6e0f4 100644
--- a/piker/brokers/deribit/api.py
+++ b/piker/brokers/deribit/api.py
@@ -319,6 +319,20 @@ class Client:
 
         return balances
 
+    async def get_currencies(
+        self,
+
+    ) -> list[dict]:
+        '''
+        Return the set of currencies for deribit.
+        '''
+        assets = {}
+        resp = await self._json_rpc_auth_wrapper(
+            'public/get_currencies',
+            params={}
+        )
+        return resp.result
+
     async def get_assets(
         self,
         venue: str | None = None,
@@ -331,11 +345,7 @@ class Client:
 
         '''
         assets = {}
-        resp = await self._json_rpc_auth_wrapper(
-            'public/get_currencies',
-            params={}
-        )
-        currencies: list[dict] = resp.result
+        currencies = await self.get_currencies()
         for currency in currencies:
             name: str = currency['currency']
             tx_tick: Decimal = digits_to_dec(currency['fee_precision'])
@@ -844,6 +854,8 @@ async def open_oi_feed(
     instruments: list[Symbol]
     async with get_client(
     ) as client:
+        # to get all currencies available in deribit
+        # currencies = await client.get_currencies()
         instruments = await client.get_instruments()
 
     fh: FeedHandler