diff --git a/go/common/subscription/new_heads_manager.go b/go/common/subscription/new_heads_manager.go
index b39ebc21ef..4ebbb8ce02 100644
--- a/go/common/subscription/new_heads_manager.go
+++ b/go/common/subscription/new_heads_manager.go
@@ -88,7 +88,7 @@ func (nhs *NewHeadsService) onNewBatch(head *common.BatchHeader) error {
 
 	var msg any = head
 	if nhs.convertToEthHeader {
-		msg = convertBatchHeader(head)
+		msg = ConvertBatchHeader(head)
 	}
 
 	nhs.notifiersMutex.Lock()
@@ -130,10 +130,11 @@ func (nhs *NewHeadsService) HealthStatus(context.Context) host.HealthStatus {
 	return &host.BasicErrHealthStatus{}
 }
 
-func convertBatchHeader(head *common.BatchHeader) *types.Header {
+func ConvertBatchHeader(head *common.BatchHeader) *types.Header {
 	return &types.Header{
 		ParentHash:  head.ParentHash,
 		UncleHash:   gethcommon.Hash{},
+		Coinbase:    head.Coinbase,
 		Root:        head.Root,
 		TxHash:      head.TxHash,
 		ReceiptHash: head.ReceiptHash,
diff --git a/tools/walletextension/rpcapi/blockchain_api.go b/tools/walletextension/rpcapi/blockchain_api.go
index aeb6a01ed9..5760e760f2 100644
--- a/tools/walletextension/rpcapi/blockchain_api.go
+++ b/tools/walletextension/rpcapi/blockchain_api.go
@@ -12,6 +12,7 @@ import (
 	"github.com/ten-protocol/go-ten/go/common"
 	"github.com/ten-protocol/go-ten/go/common/gethapi"
 	"github.com/ten-protocol/go-ten/go/common/privacy"
+	"github.com/ten-protocol/go-ten/go/common/subscription"
 	"github.com/ten-protocol/go-ten/lib/gethfork/rpc"
 )
 
@@ -100,7 +101,7 @@ func (api *BlockChainAPI) GetHeaderByHash(ctx context.Context, hash gethcommon.H
 }
 
 func (api *BlockChainAPI) GetBlockByNumber(ctx context.Context, number rpc.BlockNumber, fullTx bool) (map[string]interface{}, error) {
-	resp, err := UnauthenticatedTenRPCCall[map[string]interface{}](
+	resp, err := UnauthenticatedTenRPCCall[common.BatchHeader](
 		ctx,
 		api.we,
 		&CacheCfg{
@@ -111,15 +112,23 @@ func (api *BlockChainAPI) GetBlockByNumber(ctx context.Context, number rpc.Block
 	if resp == nil {
 		return nil, err
 	}
-	return *resp, err
+
+	// convert to geth header and marshall
+	header := subscription.ConvertBatchHeader(resp)
+	fields := RPCMarshalHeader(header)
+	return fields, err
 }
 
 func (api *BlockChainAPI) GetBlockByHash(ctx context.Context, hash gethcommon.Hash, fullTx bool) (map[string]interface{}, error) {
-	resp, err := UnauthenticatedTenRPCCall[map[string]interface{}](ctx, api.we, &CacheCfg{CacheType: LongLiving}, "eth_getBlockByHash", hash, fullTx)
+	resp, err := UnauthenticatedTenRPCCall[common.BatchHeader](ctx, api.we, &CacheCfg{CacheType: LongLiving}, "eth_getBlockByHash", hash, fullTx)
 	if resp == nil {
 		return nil, err
 	}
-	return *resp, err
+
+	// convert to geth header and marshall
+	header := subscription.ConvertBatchHeader(resp)
+	fields := RPCMarshalHeader(header)
+	return fields, err
 }
 
 func (api *BlockChainAPI) GetCode(ctx context.Context, address gethcommon.Address, blockNrOrHash rpc.BlockNumberOrHash) (hexutil.Bytes, error) {
@@ -338,3 +347,42 @@ func extractCustomQueryAddress(params any) (*gethcommon.Address, error) {
 	address := gethcommon.HexToAddress(addressStr)
 	return &address, nil
 }
+
+// RPCMarshalHeader converts the given header to the RPC output .
+// duplicated from go-ethereum
+func RPCMarshalHeader(head *types.Header) map[string]interface{} {
+	result := map[string]interface{}{
+		"number":           (*hexutil.Big)(head.Number),
+		"hash":             head.Hash(),
+		"parentHash":       head.ParentHash,
+		"nonce":            head.Nonce,
+		"mixHash":          head.MixDigest,
+		"sha3Uncles":       head.UncleHash,
+		"logsBloom":        head.Bloom,
+		"stateRoot":        head.Root,
+		"miner":            head.Coinbase,
+		"difficulty":       (*hexutil.Big)(head.Difficulty),
+		"extraData":        hexutil.Bytes(head.Extra),
+		"gasLimit":         hexutil.Uint64(head.GasLimit),
+		"gasUsed":          hexutil.Uint64(head.GasUsed),
+		"timestamp":        hexutil.Uint64(head.Time),
+		"transactionsRoot": head.TxHash,
+		"receiptsRoot":     head.ReceiptHash,
+	}
+	if head.BaseFee != nil {
+		result["baseFeePerGas"] = (*hexutil.Big)(head.BaseFee)
+	}
+	if head.WithdrawalsHash != nil {
+		result["withdrawalsRoot"] = head.WithdrawalsHash
+	}
+	if head.BlobGasUsed != nil {
+		result["blobGasUsed"] = hexutil.Uint64(*head.BlobGasUsed)
+	}
+	if head.ExcessBlobGas != nil {
+		result["excessBlobGas"] = hexutil.Uint64(*head.ExcessBlobGas)
+	}
+	if head.ParentBeaconRoot != nil {
+		result["parentBeaconBlockRoot"] = head.ParentBeaconRoot
+	}
+	return result
+}