diff --git a/cmd/api/handler/requests.go b/cmd/api/handler/requests.go
index 7a7c5993..80570b87 100644
--- a/cmd/api/handler/requests.go
+++ b/cmd/api/handler/requests.go
@@ -47,7 +47,7 @@ type txListRequest struct {
 	Limit           int         `query:"limit"             validate:"omitempty,min=1,max=100"`
 	Offset          int         `query:"offset"            validate:"omitempty,min=0"`
 	Sort            string      `query:"sort"              validate:"omitempty,oneof=asc desc"`
-	Height          uint64      `query:"height"            validate:"omitempty,min=1"`
+	Height          *uint64     `query:"height"            validate:"omitempty,min=0"`
 	Status          StringArray `query:"status"            validate:"omitempty,dive,status"`
 	MsgType         StringArray `query:"msg_type"          validate:"omitempty,dive,msg_type"`
 	ExcludedMsgType StringArray `query:"excluded_msg_type" validate:"omitempty,dive,msg_type"`
@@ -92,7 +92,7 @@ type addressTxRequest struct {
 	Limit   uint64      `query:"limit"    validate:"omitempty,min=1,max=100"`
 	Offset  uint64      `query:"offset"   validate:"omitempty,min=0"`
 	Sort    string      `query:"sort"     validate:"omitempty,oneof=asc desc"`
-	Height  uint64      `query:"height"   validate:"omitempty,min=1"`
+	Height  *uint64     `query:"height"   validate:"omitempty,min=0"`
 	Status  StringArray `query:"status"   validate:"omitempty,dive,status"`
 	MsgType StringArray `query:"msg_type" validate:"omitempty,dive,msg_type"`
 
diff --git a/cmd/api/handler/tx_test.go b/cmd/api/handler/tx_test.go
index b396022b..5d018dbc 100644
--- a/cmd/api/handler/tx_test.go
+++ b/cmd/api/handler/tx_test.go
@@ -307,7 +307,7 @@ func (s *TxTestSuite) TestListHeight() {
 			Offset:               0,
 			Sort:                 pgSort("desc"),
 			Status:               []string{"success"},
-			Height:               1000,
+			Height:               testsuite.Ptr(uint64(1000)),
 			MessageTypes:         types.NewMsgTypeBitMask(types.MsgSend),
 			ExcludedMessageTypes: types.NewMsgTypeBitMask(),
 			WithMessages:         true,
@@ -366,7 +366,7 @@ func (s *TxTestSuite) TestListExcludedMessages() {
 			Offset:               0,
 			Sort:                 pgSort("desc"),
 			Status:               []string{"success"},
-			Height:               1000,
+			Height:               testsuite.Ptr(uint64(1000)),
 			ExcludedMessageTypes: types.NewMsgTypeBitMask(types.MsgSend),
 			MessageTypes:         types.NewMsgTypeBitMask(),
 			WithMessages:         true,
diff --git a/internal/storage/postgres/scopes.go b/internal/storage/postgres/scopes.go
index 845b4919..08175c4d 100644
--- a/internal/storage/postgres/scopes.go
+++ b/internal/storage/postgres/scopes.go
@@ -53,8 +53,8 @@ func txFilter(query *bun.SelectQuery, fltrs storage.TxFilter) *bun.SelectQuery {
 			return sq
 		})
 	}
-	if fltrs.Height > 0 {
-		query = query.Where("height = ?", fltrs.Height)
+	if fltrs.Height != nil {
+		query = query.Where("height = ?", *fltrs.Height)
 	}
 
 	if !fltrs.TimeFrom.IsZero() {
diff --git a/internal/storage/postgres/tx_test.go b/internal/storage/postgres/tx_test.go
index 8dc03134..7797b21d 100644
--- a/internal/storage/postgres/tx_test.go
+++ b/internal/storage/postgres/tx_test.go
@@ -10,6 +10,7 @@ import (
 
 	"github.com/celenium-io/celestia-indexer/internal/storage"
 	"github.com/celenium-io/celestia-indexer/internal/storage/types"
+	testsuite "github.com/celenium-io/celestia-indexer/internal/test_suite"
 	sdk "github.com/dipdup-net/indexer-sdk/pkg/storage"
 )
 
@@ -94,7 +95,7 @@ func (s *StorageTestSuite) TestTxFilterExcludedMessageTypes() {
 		Limit:                10,
 		Offset:               0,
 		ExcludedMessageTypes: types.NewMsgTypeBitMask(types.MsgUnjail),
-		Height:               1000,
+		Height:               testsuite.Ptr(uint64(1000)),
 	})
 	s.Require().NoError(err)
 	s.Require().Len(txs, 1)
@@ -158,7 +159,7 @@ func (s *StorageTestSuite) TestTxFilterHeight() {
 		Limit:  10,
 		Offset: 0,
 		Status: []string{string(types.StatusSuccess)},
-		Height: 1000,
+		Height: testsuite.Ptr(uint64(1000)),
 	})
 	s.Require().NoError(err)
 	s.Require().Len(txs, 2)
diff --git a/internal/storage/tx.go b/internal/storage/tx.go
index 6b24fb63..6058112c 100644
--- a/internal/storage/tx.go
+++ b/internal/storage/tx.go
@@ -48,7 +48,7 @@ type TxFilter struct {
 	Status               []string
 	MessageTypes         types.MsgTypeBits
 	ExcludedMessageTypes types.MsgTypeBits
-	Height               uint64
+	Height               *uint64
 	TimeFrom             time.Time
 	TimeTo               time.Time
 	WithMessages         bool