diff --git a/sdgb-api/src/lib.rs b/sdgb-api/src/lib.rs
index 36d0422..fd471aa 100644
--- a/sdgb-api/src/lib.rs
+++ b/sdgb-api/src/lib.rs
@@ -7,6 +7,7 @@ pub mod helper;
 mod error;
 pub use error::ApiError;
 
+#[cfg(feature = "bincode")]
 pub use bincode;
 
 #[cfg(all(feature = "compio", feature = "tokio"))]
diff --git a/sdgb-api/src/title/model/get_user_music_api/mod.rs b/sdgb-api/src/title/model/get_user_music_api/mod.rs
index deb41ea..0d0df8f 100644
--- a/sdgb-api/src/title/model/get_user_music_api/mod.rs
+++ b/sdgb-api/src/title/model/get_user_music_api/mod.rs
@@ -1,7 +1,5 @@
 use std::fmt::Display;
 
-use bincode::Decode;
-use bincode::Encode;
 use music_db::query_music;
 use music_db::query_music_level;
 use serde::Deserialize;
@@ -17,7 +15,8 @@ pub struct GetUserMusicApi {
     pub max_count: u32,
 }
 
-#[derive(Default, Debug, Clone, PartialEq, Serialize, Deserialize, Encode, Decode)]
+#[derive(Default, Debug, Clone, PartialEq, Serialize, Deserialize)]
+#[cfg_attr(feature = "bincode", derive(bincode::Encode, bincode::Decode))]
 #[serde(rename_all = "camelCase")]
 pub struct GetUserMusicApiResp {
     pub user_id: u32,
@@ -26,14 +25,16 @@ pub struct GetUserMusicApiResp {
     pub user_music_list: Vec<UserMusic>,
 }
 
-#[derive(Default, Debug, Clone, PartialEq, Serialize, Deserialize, Encode, Decode)]
+#[cfg_attr(feature = "bincode", derive(bincode::Encode, bincode::Decode))]
+#[derive(Default, Debug, Clone, PartialEq, Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct UserMusic {
     pub user_music_detail_list: Vec<UserMusicDetail>,
     pub length: u32,
 }
 
-#[derive(Default, Debug, Clone, PartialEq, Serialize, Deserialize, Encode, Decode)]
+#[cfg_attr(feature = "bincode", derive(bincode::Encode, bincode::Decode))]
+#[derive(Default, Debug, Clone, PartialEq, Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct UserMusicDetail {
     pub music_id: u32,
diff --git a/sdgb-api/src/title/model/get_user_preview_api/mod.rs b/sdgb-api/src/title/model/get_user_preview_api/mod.rs
index 7cc9448..c8d0051 100644
--- a/sdgb-api/src/title/model/get_user_preview_api/mod.rs
+++ b/sdgb-api/src/title/model/get_user_preview_api/mod.rs
@@ -1,7 +1,5 @@
 use std::fmt::Display;
 
-use bincode::{Decode, Encode};
-
 use serde::{Deserialize, Serialize};
 
 #[derive(Serialize)]
@@ -16,7 +14,8 @@ impl From<u32> for GetUserPreviewApi {
     }
 }
 
-#[derive(Debug, Clone, Serialize, Deserialize, Encode, Decode)]
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[cfg_attr(feature = "bincode", derive(bincode::Encode, bincode::Decode))]
 #[cfg_attr(feature = "parquet", derive(parquet_derive::ParquetRecordWriter))]
 #[serde(rename_all = "camelCase")]
 pub struct GetUserPreviewApiResp {
diff --git a/sdgb-api/src/title/model/get_user_rating_api/mod.rs b/sdgb-api/src/title/model/get_user_rating_api/mod.rs
index b15a1cb..f70e808 100644
--- a/sdgb-api/src/title/model/get_user_rating_api/mod.rs
+++ b/sdgb-api/src/title/model/get_user_rating_api/mod.rs
@@ -1,7 +1,5 @@
 use std::fmt::Display;
 
-use bincode::Decode;
-use bincode::Encode;
 use music_db::query_music;
 use music_db::query_music_level;
 use serde::Deserialize;
@@ -21,14 +19,16 @@ impl From<u32> for GetUserRatingApi {
     }
 }
 
-#[derive(Default, Debug, Clone, PartialEq, Serialize, Deserialize, Encode, Decode)]
+#[cfg_attr(feature = "bincode", derive(bincode::Encode, bincode::Decode))]
+#[derive(Debug, Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct GetUserRatingApiResp {
     pub user_id: u32,
     pub user_rating: UserRating,
 }
 
-#[derive(Default, Debug, Clone, PartialEq, Serialize, Deserialize, Encode, Decode)]
+#[cfg_attr(feature = "bincode", derive(bincode::Encode, bincode::Decode))]
+#[derive(Default, Debug, Clone, PartialEq, Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct UserRating {
     /// total rating, now it's 0
@@ -44,7 +44,8 @@ pub struct UserRating {
     pub udemae: Udemae,
 }
 
-#[derive(Default, Debug, Clone, PartialEq, Serialize, Deserialize, Encode, Decode)]
+#[cfg_attr(feature = "bincode", derive(bincode::Encode, bincode::Decode))]
+#[derive(Default, Debug, Clone, PartialEq, Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct MusicRating {
     /// Maimai music id
@@ -65,7 +66,8 @@ pub struct MusicRating {
     pub achievement: i32,
 }
 
-#[derive(Default, Debug, Clone, PartialEq, Serialize, Deserialize, Encode, Decode)]
+#[cfg_attr(feature = "bincode", derive(bincode::Encode, bincode::Decode))]
+#[derive(Default, Debug, Clone, PartialEq, Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct Udemae {
     pub max_lose_num: i64,