diff --git a/cardano-api/internal/Cardano/Api/Query.hs b/cardano-api/internal/Cardano/Api/Query.hs
index 90bbdc56c9..126d975352 100644
--- a/cardano-api/internal/Cardano/Api/Query.hs
+++ b/cardano-api/internal/Cardano/Api/Query.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE AllowAmbiguousTypes #-}
 {-# LANGUAGE BangPatterns #-}
 {-# LANGUAGE DataKinds #-}
 {-# LANGUAGE DerivingStrategies #-}
@@ -94,12 +95,11 @@ import           Cardano.Api.Value
 
 import qualified Cardano.Chain.Update.Validation.Interface as Byron.Update
 import           Cardano.Ledger.Binary
-import           Cardano.Ledger.SafeHash (SafeHash)
-import           Data.ByteString (ByteString)
-import           Cardano.Ledger.Core (EraCrypto)
 import qualified Cardano.Ledger.Binary.Plain as Plain
+import           Cardano.Ledger.Core (EraCrypto)
 import qualified Cardano.Ledger.Credential as Shelley
 import           Cardano.Ledger.Crypto (Crypto)
+import           Cardano.Ledger.SafeHash (SafeHash)
 import qualified Cardano.Ledger.Shelley.API as Shelley
 import qualified Cardano.Ledger.Shelley.Core as Core
 import qualified Cardano.Ledger.Shelley.LedgerState as Shelley
@@ -131,6 +131,7 @@ import qualified Data.Aeson as Aeson
 import qualified Data.Aeson.KeyMap as KeyMap
 import           Data.Aeson.Types (Parser)
 import           Data.Bifunctor (bimap, first)
+import           Data.ByteString (ByteString)
 import qualified Data.ByteString.Lazy as LBS
 import           Data.Either.Combinators (rightToMaybe)
 import qualified Data.HashMap.Strict as HMS
@@ -729,11 +730,19 @@ consensusQueryInEraInMode erainmode =
 -- Conversions of query results from the consensus types.
 --
 
-fromConsensusQueryResult :: forall mode block result result'. ConsensusBlockForMode mode ~ block
-                         => QueryInMode mode result
-                         -> Consensus.Query block result'
-                         -> result'
-                         -> result
+fromConsensusQueryResult :: forall mode block result result'.
+  ( ConsensusBlockForMode mode ~ block
+  , EraCrypto ConwayEra ~ StandardCrypto
+  , EraCrypto BabbageEra ~ StandardCrypto
+  , EraCrypto AlonzoEra ~ StandardCrypto
+  , EraCrypto MaryEra ~ StandardCrypto
+  , EraCrypto AllegraEra ~ StandardCrypto
+  , EraCrypto ShelleyEra ~ StandardCrypto
+  )
+       => QueryInMode mode result
+       -> Consensus.Query block result'
+       -> result'
+       -> result
 fromConsensusQueryResult (QueryEraHistory CardanoModeIsMultiEra) q' r' =
     case q' of
       Consensus.BlockQuery (Consensus.QueryHardFork Consensus.GetInterpreter)
@@ -789,7 +798,7 @@ fromConsensusQueryResult (QueryInEra ShelleyEraInShelleyMode
     case (q', r') of
       (Consensus.BlockQuery (Consensus.DegenQuery q''),
        Consensus.DegenQueryResult r'')
-        -> Right (fromConsensusQueryResultShelleyBased
+        -> Right (fromConsensusQueryResultShelleyBased 
                     ShelleyBasedEraShelley q q'' r'')
       _ -> fromConsensusQueryResultMismatch
 
@@ -860,6 +869,7 @@ fromConsensusQueryResult (QueryInEra ConwayEraInCardanoMode
 fromConsensusQueryResultShelleyBased
   :: forall era ledgerera protocol result result'.
      ShelleyLedgerEra era ~ ledgerera
+  => Core.EraCrypto era ~ Consensus.StandardCrypto
   => Core.EraCrypto ledgerera ~ Consensus.StandardCrypto
   => ConsensusProtocol era ~ protocol
   => ShelleyBasedEra era