diff --git a/bchain/coins/blockchain.go b/bchain/coins/blockchain.go
index d004896f..38e98bea 100644
--- a/bchain/coins/blockchain.go
+++ b/bchain/coins/blockchain.go
@@ -302,9 +302,9 @@ func (c *blockChainWithMetrics) LongTermFeeRate() (v *bchain.LongTermFeeRate, er
 	return c.b.LongTermFeeRate()
 }
 
-func (c *blockChainWithMetrics) SendRawTransaction(tx string) (v string, err error) {
+func (c *blockChainWithMetrics) SendRawTransaction(tx string, disableAlternativeRPC bool) (v string, err error) {
 	defer func(s time.Time) { c.observeRPCLatency("SendRawTransaction", s, err) }(time.Now())
-	return c.b.SendRawTransaction(tx)
+	return c.b.SendRawTransaction(tx, disableAlternativeRPC)
 }
 
 func (c *blockChainWithMetrics) GetMempoolEntry(txid string) (v *bchain.MempoolEntry, err error) {
diff --git a/bchain/coins/btc/bitcoinrpc.go b/bchain/coins/btc/bitcoinrpc.go
index 91bdee97..f6daead2 100644
--- a/bchain/coins/btc/bitcoinrpc.go
+++ b/bchain/coins/btc/bitcoinrpc.go
@@ -889,7 +889,7 @@ func (b *BitcoinRPC) LongTermFeeRate() (*bchain.LongTermFeeRate, error) {
 }
 
 // SendRawTransaction sends raw transaction
-func (b *BitcoinRPC) SendRawTransaction(tx string) (string, error) {
+func (b *BitcoinRPC) SendRawTransaction(tx string, disableAlternativeRPC bool) (string, error) {
 	glog.V(1).Info("rpc: sendrawtransaction")
 
 	res := ResSendRawTransaction{}
diff --git a/bchain/coins/dcr/decredrpc.go b/bchain/coins/dcr/decredrpc.go
index 07cc4598..31c5810f 100644
--- a/bchain/coins/dcr/decredrpc.go
+++ b/bchain/coins/dcr/decredrpc.go
@@ -791,7 +791,7 @@ func (d *DecredRPC) EstimateFee(blocks int) (big.Int, error) {
 	return r, nil
 }
 
-func (d *DecredRPC) SendRawTransaction(tx string) (string, error) {
+func (d *DecredRPC) SendRawTransaction(tx string, disableAlternativeRPC bool) (string, error) {
 	sendRawTxRequest := &GenericCmd{
 		ID:     1,
 		Method: "sendrawtransaction",
diff --git a/bchain/coins/eth/ethrpc.go b/bchain/coins/eth/ethrpc.go
index 25cf0ee4..9cbf5707 100644
--- a/bchain/coins/eth/ethrpc.go
+++ b/bchain/coins/eth/ethrpc.go
@@ -1122,12 +1122,15 @@ func (b *EthereumRPC) EthereumTypeGetEip1559Fees() (*bchain.Eip1559Fees, error)
 }
 
 // SendRawTransaction sends raw transaction
-func (b *EthereumRPC) SendRawTransaction(hex string) (string, error) {
+func (b *EthereumRPC) SendRawTransaction(hex string, disableAlternativeRPC bool) (string, error) {
 	var txid string
 	var retErr error
 
-	if b.alternativeSendTxProvider != nil {
+	if !disableAlternativeRPC && b.alternativeSendTxProvider != nil {
 		txid, retErr = b.alternativeSendTxProvider.SendRawTransaction(hex)
+		if retErr == nil {
+			return txid, nil
+		}
 		if b.alternativeSendTxProvider.UseOnlyAlternativeProvider() {
 			return txid, retErr
 		}
diff --git a/bchain/coins/nuls/nulsrpc.go b/bchain/coins/nuls/nulsrpc.go
index 001cb6df..3c73bed8 100644
--- a/bchain/coins/nuls/nulsrpc.go
+++ b/bchain/coins/nuls/nulsrpc.go
@@ -471,7 +471,7 @@ func (n *NulsRPC) EstimateFee(blocks int) (big.Int, error) {
 	return *big.NewInt(100000), nil
 }
 
-func (n *NulsRPC) SendRawTransaction(tx string) (string, error) {
+func (n *NulsRPC) SendRawTransaction(tx string, alternativeRPC bool) (string, error) {
 	broadcast := CmdTxBroadcast{}
 	req := struct {
 		TxHex string `json:"txHex"`
diff --git a/bchain/types.go b/bchain/types.go
index e6c2d126..8e214ae1 100644
--- a/bchain/types.go
+++ b/bchain/types.go
@@ -331,7 +331,7 @@ type BlockChain interface {
 	EstimateSmartFee(blocks int, conservative bool) (big.Int, error)
 	EstimateFee(blocks int) (big.Int, error)
 	LongTermFeeRate() (*LongTermFeeRate, error)
-	SendRawTransaction(tx string) (string, error)
+	SendRawTransaction(tx string, disableAlternativeRPC bool) (string, error)
 	GetMempoolEntry(txid string) (*MempoolEntry, error)
 	GetContractInfo(contractDesc AddressDescriptor) (*ContractInfo, error)
 	// parser
diff --git a/blockbook-api.ts b/blockbook-api.ts
index a327e8d1..56ec8ae7 100644
--- a/blockbook-api.ts
+++ b/blockbook-api.ts
@@ -754,6 +754,8 @@ export interface WsLongTermFeeRateRes {
 export interface WsSendTransactionReq {
     /** Hex-encoded transaction data to broadcast. */
     hex: string;
+    /** Use alternative RPC method to broadcast transaction. */
+    disableAlternativeRPC?: boolean;
 }
 export interface WsSubscribeAddressesReq {
     /** List of addresses to subscribe for updates (e.g., new transactions). */
diff --git a/server/public.go b/server/public.go
index 84ba710b..82650d9b 100644
--- a/server/public.go
+++ b/server/public.go
@@ -1059,7 +1059,7 @@ func (s *PublicServer) explorerSendTx(w http.ResponseWriter, r *http.Request) (t
 		}
 		hex := r.FormValue("hex")
 		if len(hex) > 0 {
-			res, err := s.chain.SendRawTransaction(hex)
+			res, err := s.chain.SendRawTransaction(hex, false)
 			if err != nil {
 				data.SendTxHex = hex
 				data.Error = &api.APIError{Text: err.Error(), Public: true}
@@ -1509,7 +1509,7 @@ func (s *PublicServer) apiSendTx(r *http.Request, apiVersion int) (interface{},
 		}
 	}
 	if len(hex) > 0 {
-		res.Result, err = s.chain.SendRawTransaction(hex)
+		res.Result, err = s.chain.SendRawTransaction(hex, false)
 		if err != nil {
 			return nil, api.NewAPIError(err.Error(), true)
 		}
diff --git a/server/public_ethereumtype_test.go b/server/public_ethereumtype_test.go
index f16658a6..f63f8558 100644
--- a/server/public_ethereumtype_test.go
+++ b/server/public_ethereumtype_test.go
@@ -153,6 +153,17 @@ var websocketTestsEthereumType = []websocketTest{
 		},
 		want: `{"id":"1","data":{"data":"0x4567abcd"}}`,
 	},
+	{
+		name: "websocket sendTransaction hex format",
+		req: websocketReq{
+			Method: "sendTransaction",
+			Params: WsSendTransactionReq{
+				Hex:                   "123456",
+				DisableAlternativeRPC: true,
+			},
+		},
+		want: `{"id":"2","data":{"result":"9876"}}`,
+	},
 }
 
 func initEthereumTypeDB(d *db.RocksDB) error {
diff --git a/server/socketio.go b/server/socketio.go
index 9e8dab7f..c606eb1a 100644
--- a/server/socketio.go
+++ b/server/socketio.go
@@ -641,7 +641,7 @@ func (s *SocketIoServer) getDetailedTransaction(txid string) (res resultGetDetai
 }
 
 func (s *SocketIoServer) sendTransaction(tx string) (res resultSendTransaction, err error) {
-	txid, err := s.chain.SendRawTransaction(tx)
+	txid, err := s.chain.SendRawTransaction(tx, false)
 	if err != nil {
 		return res, err
 	}
diff --git a/server/websocket.go b/server/websocket.go
index cdaa340c..9a6d09cb 100644
--- a/server/websocket.go
+++ b/server/websocket.go
@@ -376,10 +376,11 @@ var requestHandlers = map[string]func(*WebsocketServer, *websocketChannel, *WsRe
 		r := WsSendTransactionReq{}
 		err = json.Unmarshal(req.Params, &r)
 		if err == nil {
-			rv, err = s.sendTransaction(r.Hex)
+			rv, err = s.sendTransaction(r.Hex, r.DisableAlternativeRPC)
 		}
 		return
 	},
+
 	"getMempoolFilters": func(s *WebsocketServer, c *websocketChannel, req *WsReq) (rv interface{}, err error) {
 		r := WsMempoolFiltersReq{}
 		err = json.Unmarshal(req.Params, &r)
@@ -751,8 +752,8 @@ func (s *WebsocketServer) longTermFeeRate() (res interface{}, err error) {
 	}, nil
 }
 
-func (s *WebsocketServer) sendTransaction(tx string) (res resultSendTransaction, err error) {
-	txid, err := s.chain.SendRawTransaction(tx)
+func (s *WebsocketServer) sendTransaction(tx string, disableAlternativeRPC bool) (res resultSendTransaction, err error) {
+	txid, err := s.chain.SendRawTransaction(tx, disableAlternativeRPC)
 	if err != nil {
 		return res, err
 	}
diff --git a/server/ws_types.go b/server/ws_types.go
index 5add2356..3f17f6ce 100644
--- a/server/ws_types.go
+++ b/server/ws_types.go
@@ -141,7 +141,8 @@ type WsLongTermFeeRateRes struct {
 
 // WsSendTransactionReq is used to broadcast a transaction to the network.
 type WsSendTransactionReq struct {
-	Hex string `json:"hex" ts_doc:"Hex-encoded transaction data to broadcast."`
+	Hex                   string `json:"hex,omitempty" ts_doc:"Hex-encoded transaction data to broadcast (string format)."`
+	DisableAlternativeRPC bool   `json:"disableAlternativeRpc" ts_doc:"Use alternative RPC method to broadcast transaction."`
 }
 
 // WsSubscribeAddressesReq is used to subscribe to updates on a list of addresses.
diff --git a/tests/dbtestdata/fakechain.go b/tests/dbtestdata/fakechain.go
index 044c2683..6f0e22e8 100644
--- a/tests/dbtestdata/fakechain.go
+++ b/tests/dbtestdata/fakechain.go
@@ -201,7 +201,7 @@ func (c *fakeBlockChain) EstimateFee(blocks int) (v big.Int, err error) {
 	return
 }
 
-func (c *fakeBlockChain) SendRawTransaction(tx string) (v string, err error) {
+func (c *fakeBlockChain) SendRawTransaction(tx string, disableAlternativeRPC bool) (v string, err error) {
 	if tx == "123456" {
 		return "9876", nil
 	}