diff --git a/cmd/server/config/config.go b/cmd/server/config/config.go
index a501951..0c2d661 100644
--- a/cmd/server/config/config.go
+++ b/cmd/server/config/config.go
@@ -12,48 +12,30 @@ import (
 )
 
 type Config struct {
-	LogLevel                     slog.Level `env:"LOG_LEVEL,optional"`
-	ServiceEndpoint              string     `env:"HTTP_SERVICE_ENDPOINT"`
-	DatabaseDSN                  string     `env:"DATABASE_DSN"`
-	ChainEndpoint                string     `env:"CHAIN_ENDPOINT,optional"`
-	BeginningBlockNumber         uint64     `env:"BEGINNING_BLOCK_NUMBER,optional"`
-	OperatorPrvKey               string     `env:"OPERATOR_PRIVATE_KEY,optional"`
-	LocalDBPath                  string     `env:"LOCAL_DB_PATH,optional"`
-	MqttBrokerEndpoint           string     `env:"MQTT_BROKER_ENDPOINT,optional"`
-	MqttBrokerQoS                string     `env:"MQTT_BROKER_QOS,optional"`
-	MqttBrokerCertCAPath         string     `env:"MQTT_BROKER_CERT_CA_PATH,optional"`
-	MqttBrokerCertCrtPath        string     `env:"MQTT_BROKER_CERT_CRT_PATH,optional"`
-	MqttBrokerCertKeyPath        string     `env:"MQTT_BROKER_CERT_KEY_PATH,optional"`
-	IoIDProjectID                uint64     `env:"IOID_PROJECT_ID,optional"`
-	IoIDRegistryEndpoint         string     `env:"IOID_REGISTRY_ENDPOINT,optional"`
-	IoIDRegistryContractAddr     string     `env:"IOID_REGISTRY_CONTRACT_ADDRESS,optional"`
-	IoIDContractAddr             string     `env:"IOID_CONTRACT_ADDRESS,optional"`
-	ProjectDeviceContractAddr    string     `env:"PROJECT_DEVICE_CONTRACT_ADDRESS,optional"`
-	W3bstreamProjectContractAddr string     `env:"W3BSTREAM_PROJECT_CONTRACT_ADDRESS,optional"`
-	ProjectContractAddr          string     `env:"PROJECT_CONTRACT_ADDRESS,optional"`
-	env                          string     `env:"-"`
+	LogLevel                 slog.Level `env:"LOG_LEVEL,optional"`
+	ServiceEndpoint          string     `env:"HTTP_SERVICE_ENDPOINT"`
+	DatabaseDSN              string     `env:"DATABASE_DSN"`
+	ChainEndpoint            string     `env:"CHAIN_ENDPOINT,optional"`
+	BeginningBlockNumber     uint64     `env:"BEGINNING_BLOCK_NUMBER,optional"`
+	IoIDProjectID            uint64     `env:"IOID_PROJECT_ID,optional"`
+	IoIDRegistryContractAddr string     `env:"IOID_REGISTRY_CONTRACT_ADDRESS,optional"`
+	IoIDContractAddr         string     `env:"IOID_CONTRACT_ADDRESS,optional"`
+	ProjectContractAddr      string     `env:"PROJECT_CONTRACT_ADDRESS,optional"`
+	env                      string     `env:"-"`
 }
 
 var (
 	defaultTestnetConfig = &Config{
-		LogLevel:                     slog.LevelInfo,
-		ServiceEndpoint:              ":9000",
-		DatabaseDSN:                  "postgres://postgres:mysecretpassword@postgres:5432/w3bstream?sslmode=disable",
-		ChainEndpoint:                "https://babel-api.testnet.iotex.io",
-		BeginningBlockNumber:         28685000,
-		LocalDBPath:                  "./local_db",
-		MqttBrokerQoS:                "ONCE",
-		MqttBrokerCertCAPath:         "/etc/pebble/root.pem",
-		MqttBrokerCertCrtPath:        "/etc/pebble/tls-cert.pem",
-		MqttBrokerCertKeyPath:        "/etc/pebble/tls-key.pem",
-		IoIDProjectID:                915,
-		IoIDRegistryEndpoint:         "did.iotex.me",
-		IoIDRegistryContractAddr:     "0x0A7e595C7889dF3652A19aF52C18377bF17e027D",
-		IoIDContractAddr:             "0x45Ce3E6f526e597628c73B731a3e9Af7Fc32f5b7",
-		ProjectDeviceContractAddr:    "0xF4d6282C5dDD474663eF9e70c927c0d4926d1CEb",
-		W3bstreamProjectContractAddr: "0x6AfCB0EB71B7246A68Bb9c0bFbe5cD7c11c4839f",
-		ProjectContractAddr:          "0xf07336E1c77319B4e740b666eb0C2B19D11fc14F",
-		env:                          "TESTNET",
+		LogLevel:                 slog.LevelInfo,
+		ServiceEndpoint:          ":9000",
+		DatabaseDSN:              "postgres://postgres:mysecretpassword@postgres:5432/w3bstream?sslmode=disable",
+		ChainEndpoint:            "https://babel-api.testnet.iotex.io",
+		BeginningBlockNumber:     28685000,
+		IoIDProjectID:            915,
+		IoIDRegistryContractAddr: "0x0A7e595C7889dF3652A19aF52C18377bF17e027D",
+		IoIDContractAddr:         "0x45Ce3E6f526e597628c73B731a3e9Af7Fc32f5b7",
+		ProjectContractAddr:      "0xf07336E1c77319B4e740b666eb0C2B19D11fc14F",
+		env:                      "TESTNET",
 	}
 )