diff --git a/api/message/msgpack/codec_test.go b/api/message/msgpack/codec_test.go
index f0da01c..791ebb2 100644
--- a/api/message/msgpack/codec_test.go
+++ b/api/message/msgpack/codec_test.go
@@ -155,3 +155,166 @@ func TestMsgpack_DecodeHeartbeat(t *testing.T) {
 	assert.NoError(t, err)
 	assert.Equal(t, expected, msg)
 }
+
+func TestMsgpack_EncodeTransactionTrace(t *testing.T) {
+	tx_id := "edc06dce6320459fd644756972048da453b2816b0a434c37ddffde36778dcab3"
+	block_num := uint32(2738723781)
+	ts := time.Unix(1699617279, int64(time.Millisecond)*500).UTC()
+
+	msg := message.TransactionTrace{
+		ID:            tx_id,
+		BlockNum:      block_num,
+		Timestamp:     ts,
+		Status:        "soft_fail",
+		CPUUsageUS:    23,
+		NetUsageWords: 16,
+		NetUsage:      128,
+		Elapsed:       4,
+		Scheduled:     true,
+		ActionTraces: []message.ActionTrace{
+			{
+				Name:     "sellitem",
+				Contract: "skjdh23",
+				Receiver: "eosio",
+				Data: map[string]any{
+					"key": "value",
+				},
+				Authorization: []message.PermissionLevel{
+					{Actor: "actor12123", Permission: "active"},
+				},
+			},
+			{
+				Name:     "sellitem",
+				Contract: "skjdh24",
+				Receiver: "eosio",
+				Authorization: []message.PermissionLevel{
+					{Actor: "actor1482", Permission: "active"},
+				},
+			},
+		},
+		Except: "exceptstr",
+		Error:  2,
+	}
+
+	data, err := encode(msg)
+	assert.NoError(t, err)
+
+	expected := []byte{
+		0x8c, 0xad, 0x61, 0x63, 0x74, 0x69, 0x6f, 0x6e,
+		0x5f, 0x74, 0x72, 0x61, 0x63, 0x65, 0x73, 0x92,
+		0x8b, 0xad, 0x61, 0x75, 0x74, 0x68, 0x6f, 0x72,
+		0x69, 0x7a, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x91,
+		0x82, 0xa5, 0x61, 0x63, 0x74, 0x6f, 0x72, 0xaa,
+		0x61, 0x63, 0x74, 0x6f, 0x72, 0x31, 0x32, 0x31,
+		0x32, 0x33, 0xaa, 0x70, 0x65, 0x72, 0x6d, 0x69,
+		0x73, 0x73, 0x69, 0x6f, 0x6e, 0xa6, 0x61, 0x63,
+		0x74, 0x69, 0x76, 0x65, 0xa8, 0x62, 0x6c, 0x6f,
+		0x63, 0x6b, 0x6e, 0x75, 0x6d, 0x00, 0xae, 0x62,
+		0x6c, 0x6f, 0x63, 0x6b, 0x74, 0x69, 0x6d, 0x65,
+		0x73, 0x74, 0x61, 0x6d, 0x70, 0xc0, 0xa8, 0x63,
+		0x6f, 0x6e, 0x74, 0x72, 0x61, 0x63, 0x74, 0xa7,
+		0x73, 0x6b, 0x6a, 0x64, 0x68, 0x32, 0x33, 0xa4,
+		0x64, 0x61, 0x74, 0x61, 0x81, 0xa3, 0x6b, 0x65,
+		0x79, 0xa5, 0x76, 0x61, 0x6c, 0x75, 0x65, 0xa5,
+		0x65, 0x72, 0x72, 0x6f, 0x72, 0x00, 0xa6, 0x65,
+		0x78, 0x63, 0x65, 0x70, 0x74, 0xa0, 0xa4, 0x6e,
+		0x61, 0x6d, 0x65, 0xa8, 0x73, 0x65, 0x6c, 0x6c,
+		0x69, 0x74, 0x65, 0x6d, 0xa8, 0x72, 0x65, 0x63,
+		0x65, 0x69, 0x76, 0x65, 0x72, 0xa5, 0x65, 0x6f,
+		0x73, 0x69, 0x6f, 0xa6, 0x72, 0x65, 0x74, 0x75,
+		0x72, 0x6e, 0xc0, 0xa5, 0x74, 0x78, 0x5f, 0x69,
+		0x64, 0xa0, 0x8b, 0xad, 0x61, 0x75, 0x74, 0x68,
+		0x6f, 0x72, 0x69, 0x7a, 0x61, 0x74, 0x69, 0x6f,
+		0x6e, 0x91, 0x82, 0xa5, 0x61, 0x63, 0x74, 0x6f,
+		0x72, 0xa9, 0x61, 0x63, 0x74, 0x6f, 0x72, 0x31,
+		0x34, 0x38, 0x32, 0xaa, 0x70, 0x65, 0x72, 0x6d,
+		0x69, 0x73, 0x73, 0x69, 0x6f, 0x6e, 0xa6, 0x61,
+		0x63, 0x74, 0x69, 0x76, 0x65, 0xa8, 0x62, 0x6c,
+		0x6f, 0x63, 0x6b, 0x6e, 0x75, 0x6d, 0x00, 0xae,
+		0x62, 0x6c, 0x6f, 0x63, 0x6b, 0x74, 0x69, 0x6d,
+		0x65, 0x73, 0x74, 0x61, 0x6d, 0x70, 0xc0, 0xa8,
+		0x63, 0x6f, 0x6e, 0x74, 0x72, 0x61, 0x63, 0x74,
+		0xa7, 0x73, 0x6b, 0x6a, 0x64, 0x68, 0x32, 0x34,
+		0xa4, 0x64, 0x61, 0x74, 0x61, 0xc0, 0xa5, 0x65,
+		0x72, 0x72, 0x6f, 0x72, 0x00, 0xa6, 0x65, 0x78,
+		0x63, 0x65, 0x70, 0x74, 0xa0, 0xa4, 0x6e, 0x61,
+		0x6d, 0x65, 0xa8, 0x73, 0x65, 0x6c, 0x6c, 0x69,
+		0x74, 0x65, 0x6d, 0xa8, 0x72, 0x65, 0x63, 0x65,
+		0x69, 0x76, 0x65, 0x72, 0xa5, 0x65, 0x6f, 0x73,
+		0x69, 0x6f, 0xa6, 0x72, 0x65, 0x74, 0x75, 0x72,
+		0x6e, 0xc0, 0xa5, 0x74, 0x78, 0x5f, 0x69, 0x64,
+		0xa0, 0xa8, 0x62, 0x6c, 0x6f, 0x63, 0x6b, 0x6e,
+		0x75, 0x6d, 0xce, 0xa3, 0x3d, 0x9b, 0xc5, 0xae,
+		0x62, 0x6c, 0x6f, 0x63, 0x6b, 0x74, 0x69, 0x6d,
+		0x65, 0x73, 0x74, 0x61, 0x6d, 0x70, 0xd7, 0xff,
+		0x77, 0x35, 0x94, 0x00, 0x65, 0x4e, 0x19, 0xff,
+		0xac, 0x63, 0x70, 0x75, 0x5f, 0x75, 0x73, 0x61,
+		0x67, 0x65, 0x5f, 0x75, 0x73, 0x17, 0xa7, 0x65,
+		0x6c, 0x61, 0x70, 0x73, 0x65, 0x64, 0x04, 0xa5,
+		0x65, 0x72, 0x72, 0x6f, 0x72, 0x02, 0xa6, 0x65,
+		0x78, 0x63, 0x65, 0x70, 0x74, 0xa9, 0x65, 0x78,
+		0x63, 0x65, 0x70, 0x74, 0x73, 0x74, 0x72, 0xa2,
+		0x69, 0x64, 0xd9, 0x40, 0x65, 0x64, 0x63, 0x30,
+		0x36, 0x64, 0x63, 0x65, 0x36, 0x33, 0x32, 0x30,
+		0x34, 0x35, 0x39, 0x66, 0x64, 0x36, 0x34, 0x34,
+		0x37, 0x35, 0x36, 0x39, 0x37, 0x32, 0x30, 0x34,
+		0x38, 0x64, 0x61, 0x34, 0x35, 0x33, 0x62, 0x32,
+		0x38, 0x31, 0x36, 0x62, 0x30, 0x61, 0x34, 0x33,
+		0x34, 0x63, 0x33, 0x37, 0x64, 0x64, 0x66, 0x66,
+		0x64, 0x65, 0x33, 0x36, 0x37, 0x37, 0x38, 0x64,
+		0x63, 0x61, 0x62, 0x33, 0xa9, 0x6e, 0x65, 0x74,
+		0x5f, 0x75, 0x73, 0x61, 0x67, 0x65, 0xcc, 0x80,
+		0xaf, 0x6e, 0x65, 0x74, 0x5f, 0x75, 0x73, 0x61,
+		0x67, 0x65, 0x5f, 0x77, 0x6f, 0x72, 0x64, 0x73,
+		0x10, 0xa9, 0x73, 0x63, 0x68, 0x65, 0x64, 0x75,
+		0x6c, 0x65, 0x64, 0xc3, 0xa6, 0x73, 0x74, 0x61,
+		0x74, 0x75, 0x73, 0xa9, 0x73, 0x6f, 0x66, 0x74,
+		0x5f, 0x66, 0x61, 0x69, 0x6c,
+	}
+
+	assert.Equal(t, expected, data)
+}
+
+func TestMsgpack_DecodeTransactionTrace(t *testing.T) {
+	data := []byte("\x8c\xadaction_traces\x91\x8b\xadauthorization\x91\x82\xa5actor\xaaactor12123\xaapermission\xa5claim\xa8blocknum\x00\xaeblocktimestamp\xc0\xa8contract\xa9send.help\xa4data\x81\xa7claimer\xaaactor12123\xa5error\x00\xa6except\xa0\xa4name\xa5claim\xa8receiver\xaaactor12123\xa6return\xc0\xa5tx_id\xa0\xa8blocknumΣ5\x81!\xaeblocktimestamp\xd7\xffw5\x94\x00K\x813̬cpu_usage_us6\xa7elapsed\x04\xa5error+\xa6except\xa9exceptstr\xa2id\xd9@05d7e50e8aa898a84df345f714f741ce804a9cc171da44b893ae74891cc7258a\xa9net_usagè\xafnet_usage_words\x10\xa9scheduledæstatus\xa9hard_fail")
+
+	tx_id := "05d7e50e8aa898a84df345f714f741ce804a9cc171da44b893ae74891cc7258a"
+	block_num := uint32(2738192673)
+	ts := time.Unix(1266758604, int64(time.Millisecond)*500).UTC()
+
+	expected := message.TransactionTrace{
+		ID:            tx_id,
+		BlockNum:      block_num,
+		Timestamp:     ts,
+		Status:        "hard_fail",
+		CPUUsageUS:    54,
+		NetUsageWords: 16,
+		NetUsage:      128,
+		Elapsed:       4,
+		Scheduled:     true,
+		ActionTraces: []message.ActionTrace{
+			{
+				Name:     "claim",
+				Contract: "send.help",
+				Receiver: "actor12123",
+				Data: map[string]any{
+					"claimer": "actor12123",
+				},
+				Authorization: []message.PermissionLevel{
+					{Actor: "actor12123", Permission: "claim"},
+				},
+			},
+		},
+		Except: "exceptstr",
+		Error:  43,
+	}
+
+	// x, _ := encode(expected)
+	// assert.Equal(t, data, string(x))
+
+	res := message.TransactionTrace{}
+	err := decode(data, &res)
+	assert.NoError(t, err)
+
+	assert.Equal(t, expected, res)
+}