diff --git a/csst_common/data/dfs_conf.yml b/csst_common/data/dfs_conf.yml
index c81c3080941af260a32cea74f4cc8e931eccf37f..3d23eb4308c4297dd7709ad9575216f2cbaacc66 100644
--- a/csst_common/data/dfs_conf.yml
+++ b/csst_common/data/dfs_conf.yml
@@ -4,11 +4,9 @@ pml:
   CSST_DFS_GATEWAY: "172.24.21.2:30880"
   CSST_DFS_APP_ID: "test"
   CSST_DFS_APP_TOKEN: "test"
-  CSST_DFS_LOGS_DIR=: "."
 
 kmust:
   CSST_DFS_API_MODE: "cluster"
   CSST_DFS_GATEWAY: "222.197.214.168:30880"
   CSST_DFS_APP_ID: "1"
   CSST_DFS_APP_TOKEN: "1"
-  CSST_DFS_LOGS_DIR=: "."
diff --git a/csst_common/data_manager.py b/csst_common/data_manager.py
index 715ac485cc733e313b65f6f0c87b6d606b3f1a0f..0d8c4c1221eccd500da1e815364b8e60ddc096ec 100644
--- a/csst_common/data_manager.py
+++ b/csst_common/data_manager.py
@@ -24,8 +24,9 @@ from astropy.table import Table
 from csst_dfs_api.facility.calmerge import CalMergeApi
 from csst_dfs_api.facility.level0 import Level0DataApi
 from csst_dfs_api.facility.level0prc import Level0PrcApi
-from csst_dfs_api.msc.level1 import Level1DataApi
-from csst_dfs_api.msc.level2 import Level2DataApi
+from csst_dfs_api.mbi.level1 import Level1DataApi as MbiLevel1DataApi
+from csst_dfs_api.mbi.level1prc import Level1PrcApi as MbiLevel1PrcApi
+from csst_dfs_api.mbi.level2 import Level2DataApi as MbiLevel2DataApi
 from csst_dfs_api.sls.level1 import Level1DataApi as SlsLevel1DataApi
 from csst_dfs_api.sls.level1prc import Level1PrcApi as SlsLevel1PrcApi
 from csst_dfs_api.sls.level2spectra import Level2SpectraApi as SlsLevel2DataApi
@@ -163,6 +164,9 @@ class CsstMsDataManager:
                  backend="multiprocessing"
                  ):
 
+        # set DFS log dir
+        os.environ["CSST_DFS_LOGS_DIR"] = "."
+
         # version
         assert ver_sim in CP["sim"]["versions"]
         self.ver_sim = ver_sim
@@ -254,16 +258,20 @@ class CsstMsDataManager:
         return Level0DataApi()
 
     @property
-    def dfs_L1DataApi(self):
-        return Level1DataApi()
+    def dfs_L0PrcApi(self):
+        return Level0PrcApi()
 
     @property
-    def dfs_L2DataApi(self):
-        return Level2DataApi()
+    def dfs_MbiL1DataApi(self):
+        return MbiLevel1DataApi()
 
     @property
-    def dfs_L0PrcApi(self):
-        return Level0PrcApi()
+    def dfs_MbiL1PrcApi(self):
+        return MbiLevel1PrcApi()
+
+    @property
+    def dfs_MbiL2DataApi(self):
+        return MbiLevel2DataApi()
 
     @property
     def dfs_SlsL1DataApi(self):