diff --git a/api/service/explorer/service.go b/api/service/explorer/service.go
index 603eecfde..ed6248ac4 100644
--- a/api/service/explorer/service.go
+++ b/api/service/explorer/service.go
@@ -30,6 +30,8 @@ import (
 // Constants for explorer service.
 const (
 	explorerPortDifference = 4000
+	txViewNone             = "NONE"
+	txViewAll              = "ALL"
 )
 
 // HTTPError is an HTTP error.
@@ -107,9 +109,9 @@ func (s *Service) Run() *http.Server {
 	s.router.Path("/tx").Queries("id", "{[0-9A-Fa-fx]*?}").HandlerFunc(s.GetExplorerTransaction).Methods("GET")
 	s.router.Path("/tx").HandlerFunc(s.GetExplorerTransaction)
 
-	// Set up router for address.
-	s.router.Path("/address").Queries("id", fmt.Sprintf("{([0-9A-Fa-fx]*?)|(t?one1[%s]{38})}", bech32.Charset)).HandlerFunc(s.GetExplorerAddress).Methods("GET")
-	s.router.Path("/address").HandlerFunc(s.GetExplorerAddress)
+	// Set up router for account.
+	s.router.Path("/account").Queries("id", fmt.Sprintf("{([0-9A-Fa-fx]*?)|(t?one1[%s]{38})}", bech32.Charset)).HandlerFunc(s.GetExplorerAccount).Methods("GET")
+	s.router.Path("/account").HandlerFunc(s.GetExplorerAccount)
 
 	// Set up router for node count.
 	s.router.Path("/nodes").HandlerFunc(s.GetExplorerNodeCount) // TODO(ricl): this is going to be replaced by /node-count
@@ -120,8 +122,8 @@ func (s *Service) Run() *http.Server {
 	s.router.Path("/shard").HandlerFunc(s.GetExplorerShard)
 
 	// Set up router for committee.
-	s.router.Path("/committee").Queries("shard_id", "{[0-9]*?}", "epoch", "{[0-9]*?}").HandlerFunc(s.GetCommittee).Methods("GET")
-	s.router.Path("/committee").HandlerFunc(s.GetCommittee).Methods("GET")
+	s.router.Path("/committee").Queries("shard_id", "{[0-9]*?}", "epoch", "{[0-9]*?}").HandlerFunc(s.GetExplorerCommittee).Methods("GET")
+	s.router.Path("/committee").HandlerFunc(s.GetExplorerCommittee).Methods("GET")
 
 	// Do serving now.
 	utils.Logger().Info().Str("port", GetExplorerPort(s.Port)).Msg("Listening")
@@ -174,12 +176,15 @@ func (s *Service) GetExplorerBlocks(w http.ResponseWriter, r *http.Request) {
 	}()
 
 	if from == "" {
+		utils.Logger().Warn().Msg("Missing from parameter")
+		w.WriteHeader(400)
 		return
 	}
 	db := s.storage.GetDB()
 	fromInt, err := strconv.Atoi(from)
 	if err != nil {
-		utils.Logger().Warn().Err(err).Str("from", from).Msg("invalid from parameter")
+		utils.Logger().Warn().Err(err).Msg("invalid from parameter")
+		w.WriteHeader(400)
 		return
 	}
 	var toInt int
@@ -195,7 +200,8 @@ func (s *Service) GetExplorerBlocks(w http.ResponseWriter, r *http.Request) {
 		toInt, err = strconv.Atoi(to)
 	}
 	if err != nil {
-		utils.Logger().Warn().Err(err).Str("to", to).Msg("invalid to parameter")
+		utils.Logger().Warn().Err(err).Msg("invalid to parameter")
+		w.WriteHeader(400)
 		return
 	}
 
@@ -296,24 +302,28 @@ func (s *Service) GetExplorerTransaction(w http.ResponseWriter, r *http.Request)
 		}
 	}()
 	if id == "" {
+		utils.Logger().Warn().Msg("invalid id parameter")
+		w.WriteHeader(400)
 		return
 	}
 	db := s.storage.GetDB()
 	bytes, err := db.Get([]byte(GetTXKey(id)))
 	if err != nil {
 		utils.Logger().Warn().Err(err).Str("id", id).Msg("cannot read TX")
+		w.WriteHeader(500)
 		return
 	}
 	tx := new(Transaction)
 	if rlp.DecodeBytes(bytes, tx) != nil {
 		utils.Logger().Warn().Str("id", id).Msg("cannot convert data from DB")
+		w.WriteHeader(500)
 		return
 	}
 	data.TX = *tx
 }
 
-// GetCommittee servers /comittee end-point.
-func (s *Service) GetCommittee(w http.ResponseWriter, r *http.Request) {
+// GetExplorerCommittee servers /comittee end-point.
+func (s *Service) GetExplorerCommittee(w http.ResponseWriter, r *http.Request) {
 	w.Header().Set("Content-Type", "application/json")
 	shardIDRead := r.FormValue("shard_id")
 	epochRead := r.FormValue("epoch")
@@ -392,44 +402,73 @@ func (s *Service) GetCommittee(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
-// GetExplorerAddress serves /address end-point.
-func (s *Service) GetExplorerAddress(w http.ResponseWriter, r *http.Request) {
+// GetExplorerAccount serves /account end-point.
+func (s *Service) GetExplorerAccount(w http.ResponseWriter, r *http.Request) {
 	w.Header().Set("Content-Type", "application/json")
 	id := r.FormValue("id")
-	key := GetAddressKey(id)
-
-	utils.Logger().Info().Str("address", id).Msg("Querying address")
+	key := GetAccountKey(id)
+	txViewParam := r.FormValue("tx_view")
+	txView := txViewNone
+	if txViewParam != "" {
+		txView = txViewParam
+	}
+	utils.Logger().Info().Str("account", id).Msg("Querying account")
 	data := &Data{}
 	defer func() {
-		if err := json.NewEncoder(w).Encode(data.Address); err != nil {
+		if err := json.NewEncoder(w).Encode(data.Account); err != nil {
 			ctxerror.Warn(utils.WithCallerSkip(utils.GetLogInstance(), 1), err,
-				"cannot JSON-encode address")
+				"cannot JSON-encode account")
 		}
 	}()
 	if id == "" {
+		utils.Logger().Warn().Msg("missing account address param")
+		w.WriteHeader(400)
 		return
 	}
-	data.Address.ID = id
-	// Try to populate the banace by directly calling get balance.
-	// Check the balance from blockchain rather than local DB dump
-	if s.GetAccountBalance != nil {
-		address := common2.ParseAddr(id)
-		balance, err := s.GetAccountBalance(address)
-		if err == nil {
-			data.Address.Balance = balance
-		}
-	}
 
 	db := s.storage.GetDB()
 	bytes, err := db.Get([]byte(key))
 	if err != nil {
-		utils.Logger().Warn().Err(err).Str("id", id).Msg("cannot read address from db")
+		utils.Logger().Warn().Err(err).Str("id", id).Msg("cannot read account from db")
+		w.WriteHeader(500)
 		return
 	}
-	if err = rlp.DecodeBytes(bytes, &data.Address); err != nil {
+	if err = rlp.DecodeBytes(bytes, &data.Account); err != nil {
 		utils.Logger().Warn().Str("id", id).Msg("cannot convert data from DB")
+		w.WriteHeader(500)
 		return
 	}
+
+	data.Account.ID = id
+	// Try to populate the banace by directly calling get balance.
+	// Check the balance from blockchain rather than local DB dump
+	if s.GetAccountBalance != nil {
+		address := common2.ParseAddr(id)
+		balance, err := s.GetAccountBalance(address)
+		if err == nil {
+			data.Account.Balance = balance
+		}
+	}
+	switch txView {
+	case txViewNone:
+		data.Account.TXs = nil
+	case Received:
+		receivedTXs := make([]*Transaction, 0)
+		for _, tx := range data.Account.TXs {
+			if tx.Type == Received {
+				receivedTXs = append(receivedTXs, tx)
+			}
+		}
+		data.Account.TXs = receivedTXs
+	case Sent:
+		sentTXs := make([]*Transaction, 0)
+		for _, tx := range data.Account.TXs {
+			if tx.Type == Sent {
+				sentTXs = append(sentTXs, tx)
+			}
+		}
+		data.Account.TXs = sentTXs
+	}
 }
 
 // GetExplorerNodeCount serves /nodes end-point.
@@ -437,6 +476,7 @@ func (s *Service) GetExplorerNodeCount(w http.ResponseWriter, r *http.Request) {
 	w.Header().Set("Content-Type", "application/json")
 	if err := json.NewEncoder(w).Encode(len(s.GetNodeIDs())); err != nil {
 		utils.Logger().Warn().Msg("cannot JSON-encode node count")
+		w.WriteHeader(500)
 	}
 }
 
@@ -451,6 +491,7 @@ func (s *Service) GetExplorerShard(w http.ResponseWriter, r *http.Request) {
 	}
 	if err := json.NewEncoder(w).Encode(Shard{Nodes: nodes}); err != nil {
 		utils.Logger().Warn().Msg("cannot JSON-encode shard info")
+		w.WriteHeader(500)
 	}
 }
 
diff --git a/api/service/explorer/storage.go b/api/service/explorer/storage.go
index bd4706e9c..f95e3da9d 100644
--- a/api/service/explorer/storage.go
+++ b/api/service/explorer/storage.go
@@ -20,7 +20,7 @@ const (
 	BlockInfoPrefix = "bi"
 	BlockPrefix     = "b"
 	TXPrefix        = "tx"
-	AddressPrefix   = "ad"
+	AccountPrefix   = "ad"
 	CommitteePrefix = "cp"
 )
 
@@ -29,9 +29,9 @@ func GetBlockInfoKey(id int) string {
 	return fmt.Sprintf("%s_%d", BlockInfoPrefix, id)
 }
 
-// GetAddressKey ...
-func GetAddressKey(address string) string {
-	return fmt.Sprintf("%s_%s", AddressPrefix, address)
+// GetAccountKey ...
+func GetAccountKey(address string) string {
+	return fmt.Sprintf("%s_%s", AccountPrefix, address)
 }
 
 // GetBlockKey ...
@@ -112,12 +112,13 @@ func (storage *Storage) Dump(block *types.Block, height uint64) {
 	// Store txs
 	for _, tx := range block.Transactions() {
 		if tx.To() == nil {
+			utils.Logger().Info().Msgf("LOL Tx id %s", tx.Hash().Hex())
 			continue
 		}
 
 		explorerTransaction := GetTransaction(tx, block)
 		storage.UpdateTXStorage(batch, explorerTransaction, tx)
-		storage.UpdateAddress(batch, explorerTransaction, tx)
+		storage.UpdateAccount(batch, explorerTransaction, tx)
 	}
 	if err := batch.Write(); err != nil {
 		ctxerror.Warn(utils.GetLogger(), err, "cannot write batch")
@@ -153,33 +154,35 @@ func (storage *Storage) UpdateTXStorage(batch ethdb.Batch, explorerTransaction *
 	}
 }
 
-// UpdateAddress ...
-func (storage *Storage) UpdateAddress(batch ethdb.Batch, explorerTransaction *Transaction, tx *types.Transaction) {
-	storage.UpdateAddressStorage(batch, explorerTransaction.To, explorerTransaction, tx)
-	storage.UpdateAddressStorage(batch, explorerTransaction.From, explorerTransaction, tx)
+// UpdateAccount ...
+func (storage *Storage) UpdateAccount(batch ethdb.Batch, explorerTransaction *Transaction, tx *types.Transaction) {
+	explorerTransaction.Type = Received
+	storage.UpdateAccountStorage(batch, explorerTransaction.To, explorerTransaction, tx)
+	explorerTransaction.Type = Sent
+	storage.UpdateAccountStorage(batch, explorerTransaction.From, explorerTransaction, tx)
 }
 
-// UpdateAddressStorage updates specific addr address.
-func (storage *Storage) UpdateAddressStorage(batch ethdb.Batch, addr string, explorerTransaction *Transaction, tx *types.Transaction) {
-	key := GetAddressKey(addr)
+// UpdateAccountStorage updates specific addr account.
+func (storage *Storage) UpdateAccountStorage(batch ethdb.Batch, addr string, explorerTransaction *Transaction, tx *types.Transaction) {
+	key := GetAccountKey(addr)
 
-	var address Address
+	var account Account
 	if data, err := storage.db.Get([]byte(key)); err == nil {
-		err = rlp.DecodeBytes(data, &address)
+		err = rlp.DecodeBytes(data, &account)
 		if err == nil {
-			address.Balance.Add(address.Balance, tx.Value())
+			account.Balance.Add(account.Balance, tx.Value())
 		} else {
 			utils.Logger().Error().Err(err).Msg("Failed to error")
 		}
 	} else {
-		address.Balance = tx.Value()
+		account.Balance = tx.Value()
 	}
-	address.ID = addr
-	address.TXs = append(address.TXs, explorerTransaction)
-	encoded, err := rlp.EncodeToBytes(address)
+	account.ID = addr
+	account.TXs = append(account.TXs, explorerTransaction)
+	encoded, err := rlp.EncodeToBytes(account)
 	if err == nil {
 		if err := batch.Put([]byte(key), encoded); err != nil {
-			utils.Logger().Warn().Err(err).Msg("cannot batch address")
+			utils.Logger().Warn().Err(err).Msg("cannot batch account")
 		}
 	} else {
 		utils.Logger().Error().Err(err).Msg("cannot encode address account")
diff --git a/api/service/explorer/storage_test.go b/api/service/explorer/storage_test.go
index e710e0c20..c6a5dd0fd 100644
--- a/api/service/explorer/storage_test.go
+++ b/api/service/explorer/storage_test.go
@@ -18,9 +18,9 @@ func TestGetBlockInfoKey(t *testing.T) {
 	assert.Equal(t, GetBlockInfoKey(3), "bi_3", "error")
 }
 
-// Test for GetAddressKey
-func TestGetAddressKey(t *testing.T) {
-	assert.Equal(t, GetAddressKey("abcd"), "ad_abcd", "error")
+// Test for GetAccountKey
+func TestGetAccountKey(t *testing.T) {
+	assert.Equal(t, GetAccountKey("abcd"), "ad_abcd", "error")
 }
 
 // Test for GetBlockKey
diff --git a/api/service/explorer/structs.go b/api/service/explorer/structs.go
index 8d3f79c0f..57368e837 100644
--- a/api/service/explorer/structs.go
+++ b/api/service/explorer/structs.go
@@ -5,7 +5,10 @@ import (
 	"math/big"
 	"strconv"
 
+	"github.com/ethereum/go-ethereum/common"
+
 	"github.com/harmony-one/harmony/core/types"
+	common2 "github.com/harmony-one/harmony/internal/common"
 	"github.com/harmony-one/harmony/internal/utils"
 )
 
@@ -13,16 +16,22 @@ import (
  * All the code here is work of progress for the sprint.
  */
 
+// Tx types ...
+const (
+	Received = "RECEIVED"
+	Sent     = "SENT"
+)
+
 // Data ...
 type Data struct {
 	Blocks []*Block `json:"blocks"`
 	// Block   Block        `json:"block"`
-	Address Address `json:"address"`
+	Account Account `json:"account"`
 	TX      Transaction
 }
 
-// Address ...
-type Address struct {
+// Account ...
+type Account struct {
 	ID      string         `json:"id"`
 	Balance *big.Int       `json:"balance"`
 	TXs     []*Transaction `json:"txs"`
@@ -48,6 +57,7 @@ type Transaction struct {
 	Value     *big.Int `json:"value"`
 	Bytes     string   `json:"bytes"`
 	Data      string   `json:"data"`
+	Type      string   `json:"type"`
 }
 
 // Block ...
@@ -86,21 +96,6 @@ type Shard struct {
 // NewBlock ...
 func NewBlock(block *types.Block, height int) *Block {
 	// TODO(ricl): use block.Header().CommitBitmap and GetPubKeyFromMask
-	signers := []string{}
-	/*state, err := block.Header().GetShardState()
-	if err == nil {
-		for _, committee := range state {
-			if committee.ShardID == block.ShardID() {
-				for i, validator := range committee.NodeList {
-					oneAddress, err := common.AddressToBech32(validator.EcdsaAddress)
-					if err != nil && block.Header().LastCommitBitmap[i] != 0x0 {
-						continue
-					}
-					signers = append(signers, oneAddress)
-				}
-			}
-		}
-	}*/
 	return &Block{
 		Height:     strconv.Itoa(height),
 		ID:         block.Hash().Hex(),
@@ -108,7 +103,7 @@ func NewBlock(block *types.Block, height int) *Block {
 		Timestamp:  strconv.Itoa(int(block.Time().Int64() * 1000)),
 		MerkleRoot: block.Root().Hex(),
 		Bytes:      strconv.Itoa(int(block.Size())),
-		Signers:    signers,
+		Signers:    []string{},
 		Epoch:      block.Epoch().Uint64(),
 		ExtraData:  string(block.Extra()),
 	}
@@ -116,6 +111,7 @@ func NewBlock(block *types.Block, height int) *Block {
 
 // GetTransaction ...
 func GetTransaction(tx *types.Transaction, accountBlock *types.Block) *Transaction {
+	utils.Logger().Info().Msgf("Tx id %s", tx.Hash().Hex())
 	if tx.To() == nil {
 		return nil
 	}
@@ -123,13 +119,15 @@ func GetTransaction(tx *types.Transaction, accountBlock *types.Block) *Transacti
 	if err != nil {
 		utils.Logger().Error().Err(err).Msg("Error when parsing tx into message")
 	}
+	utils.Logger().Info().Msg("OK done")
 	return &Transaction{
 		ID:        tx.Hash().Hex(),
 		Timestamp: strconv.Itoa(int(accountBlock.Time().Int64() * 1000)),
-		From:      msg.From().Hex(), // TODO ek – use bech32
-		To:        msg.To().Hex(),   // TODO ek – use bech32
+		From:      common2.MustAddressToBech32(common.HexToAddress(msg.From().Hex())),
+		To:        common2.MustAddressToBech32(common.HexToAddress(msg.To().Hex())),
 		Value:     msg.Value(),
 		Bytes:     strconv.Itoa(int(tx.Size())),
 		Data:      hex.EncodeToString(tx.Data()),
+		Type:      "",
 	}
 }
diff --git a/api/service/explorer/structs_test.go b/api/service/explorer/structs_test.go
index 120f4d51c..b3f611695 100644
--- a/api/service/explorer/structs_test.go
+++ b/api/service/explorer/structs_test.go
@@ -9,6 +9,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/harmony-one/harmony/core/types"
+	common2 "github.com/harmony-one/harmony/internal/common"
 )
 
 // Test for GetBlockInfoKey
@@ -22,6 +23,6 @@ func TestGetTransaction(t *testing.T) {
 
 	tx := GetTransaction(tx1, block)
 	assert.Equal(t, tx.ID, tx1.Hash().Hex(), "should be equal tx1.Hash()")
-	assert.Equal(t, tx.To, tx1.To().Hex(), "should be equal tx1.To()") // TODO ek – use bech32
+	assert.Equal(t, tx.To, common2.MustAddressToBech32(common.HexToAddress(tx1.To().Hex())), "should be equal tx1.To()")
 	assert.Equal(t, tx.Bytes, strconv.Itoa(int(tx1.Size())), "should be equal tx1.Size()")
 }