diff --git a/lib/core/src/Cardano/Wallet/Api.hs b/lib/core/src/Cardano/Wallet/Api.hs
index c6a0f1f6c1e..411619471ab 100644
--- a/lib/core/src/Cardano/Wallet/Api.hs
+++ b/lib/core/src/Cardano/Wallet/Api.hs
@@ -61,6 +61,7 @@ module Cardano.Wallet.Api
         , CreateTransactionOld
         , PostTransactionFeeOld
         , BalanceTransaction
+        , SubmitTransaction
 
     , StakePools
         , ListStakePools
@@ -528,6 +529,7 @@ type ShelleyTransactions n =
     :<|> CreateTransactionOld n
     :<|> PostTransactionFeeOld n
     :<|> BalanceTransaction n
+    :<|> SubmitTransaction
 
 -- | https://input-output-hk.github.io/cardano-wallet/api/#operation/constructTransaction
 type ConstructTransaction n = "wallets"
@@ -588,6 +590,13 @@ type BalanceTransaction n = "wallets"
     :> ReqBody '[JSON] (ApiBalanceTransactionPostDataT n)
     :> PostAccepted '[JSON] ApiSerialisedTransaction
 
+-- | https://input-output-hk.github.io/cardano-wallet/api/#operation/submitTransaction
+type SubmitTransaction = "wallets"
+    :> Capture "walletId" (ApiT WalletId)
+    :> "transactions-submit"
+    :> ReqBody '[OctetStream] (ApiT SealedTx)
+    :> PostAccepted '[JSON] ApiTxId
+
 {-------------------------------------------------------------------------------
                                  Shelley Migrations
 
diff --git a/lib/core/src/Cardano/Wallet/Api/Client.hs b/lib/core/src/Cardano/Wallet/Api/Client.hs
index 812ba8b7d94..9dbbc7c7276 100644
--- a/lib/core/src/Cardano/Wallet/Api/Client.hs
+++ b/lib/core/src/Cardano/Wallet/Api/Client.hs
@@ -194,6 +194,10 @@ data TransactionClient = TransactionClient
         :: ApiT WalletId
         -> ApiBalanceTransactionPostDataT Aeson.Value
         -> ClientM ApiSerialisedTransaction
+    , submitTransaction
+        :: ApiT WalletId
+        -> ApiT SealedTx
+        -> ClientM ApiTxId
     }
 
 data AddressClient = AddressClient
@@ -310,6 +314,7 @@ transactionClient =
             :<|> _postTransaction
             :<|> _postTransactionFee
             :<|> _balanceTransaction
+            :<|> _submitTransaction
             = client (Proxy @("v2" :> (ShelleyTransactions Aeson.Value)))
 
         _postExternalTransaction
@@ -325,6 +330,7 @@ transactionClient =
             , getTransaction = _getTransaction
             , constructTransaction = _constructTransaction
             , balanceTransaction = _balanceTransaction
+            , submitTransaction = _submitTransaction
             }
 
 fromSerialisedTx :: ApiBytesT base SerialisedTx -> ApiT SealedTx
@@ -357,6 +363,7 @@ byronTransactionClient =
         , getTransaction = _getTransaction
         , constructTransaction = _constructTransaction
         , balanceTransaction = error "balance transaction endpoint not supported for byron"
+        , submitTransaction = error "submit transaction endpoint not supported for byron"
         }
 
 -- | Produces an 'AddressClient n' working against the /wallets API