diff --git a/tosfs/core.py b/tosfs/core.py
index 9a7ac25..f36bb83 100644
--- a/tosfs/core.py
+++ b/tosfs/core.py
@@ -227,6 +227,7 @@ def __init__(
             Additional arguments.
 
         """
+        self.endpoint = endpoint
         if endpoint_url is not None:
             warnings.warn(
                 "The 'endpoint_url' parameter is deprecated and will be removed"
@@ -234,7 +235,7 @@ def __init__(
                 DeprecationWarning,
                 stacklevel=2,
             )
-            endpoint = endpoint_url
+            self.endpoint = endpoint_url
 
         self.tos_client = tos.TosClientV2(
             key,
@@ -2268,7 +2269,7 @@ def _split_path(self, path: str) -> Tuple[str, str, Optional[str]]:
         key, _, version_id = keypart.partition("?versionId=")
 
         if self.tag_enabled:
-            self.bucket_tag_mgr.add_bucket_tag(bucket)
+            self.bucket_tag_mgr.add_bucket_tag(bucket, self.endpoint)
 
         return (
             bucket,
diff --git a/tosfs/tag.py b/tosfs/tag.py
index 051e294..c5a5446 100644
--- a/tosfs/tag.py
+++ b/tosfs/tag.py
@@ -163,9 +163,12 @@ def __init__(
         secret: Optional[str],
         session_token: Optional[str],
         region: str,
+        endpoint: Optional[str] = None,
     ) -> None:
         """Init BucketTagAction."""
-        super().__init__(self.get_service_info(region), self.get_api_info())
+        self._region = region
+        self._endpoint = endpoint
+        super().__init__(self.get_service_info(), self.get_api_info())
         if key:
             self.set_ak(key)
 
@@ -180,17 +183,38 @@ def get_api_info() -> dict:
         """Get api info."""
         return api_info
 
-    @staticmethod
-    def get_service_info(region: str) -> ServiceInfo:
+    def get_service_info(self) -> ServiceInfo:
         """Get service info."""
+        region = self._region
         service_info = service_info_map.get(region)
-        if service_info:
-            from tosfs.core import logger
+        if not service_info:
+            raise Exception(f"Do not support region: {region}")
 
-            logger.debug(f"The service name is : {service_info.credentials.service}")
-            return service_info
+        from tosfs.core import logger
 
-        raise Exception(f"Do not support region: {region}")
+        credentials = service_info.credentials
+        logger.debug(f"The service name is : {credentials.service}")
+
+        endpoint = self._endpoint or ""
+        host = OPEN_API_HOST
+        scheme = "https"
+
+        if endpoint:
+            if endpoint.endswith(("ivolces.com", "volces.com")):
+                host = f"emr.{region}.volcengineapi.com"
+            elif endpoint.endswith(("ibytepluses.com", "bytepluses.com")):
+                host = f"emr.{region}.byteplusapi.com"
+            elif endpoint.endswith(("ibytepluses.com.cn", "byteplus.com.cn")):
+                host = f"emr.{region}.byteplusapi.com.cn"
+
+        return ServiceInfo(
+            host,
+            {ACCEPT_HEADER_KEY: ACCEPT_HEADER_JSON_VALUE},
+            credentials,
+            CONNECTION_TIMEOUT_DEFAULT_SECONDS,
+            SOCKET_TIMEOUT_DEFAULT_SECONDS,
+            scheme,
+        )
 
     def put_bucket_tag(self, bucket: str) -> tuple[str, bool]:
         """Put tag for bucket."""
@@ -269,7 +293,7 @@ def __init__(
             self.key, self.secret, self.session_token, actual_region
         )
 
-    def add_bucket_tag(self, bucket: str) -> None:
+    def add_bucket_tag(self, bucket: str, endpoint: Optional[str] = None) -> None:
         """Add tag for bucket."""
         from tosfs.core import logger
 
@@ -292,9 +316,18 @@ def add_bucket_tag(self, bucket: str) -> None:
         need_tag_buckets = collect_bucket_set - self.cached_bucket_set
         logger.debug(f"Need to tag buckets : {need_tag_buckets}")
 
-        for res in self.executor.map(
-            self.bucket_tag_service.put_bucket_tag, need_tag_buckets
-        ):
+        def _add_bucket_tag(target_bucket: str) -> tuple[str, bool]:
+            """Create a BucketTagAction with the endpoint for this call."""
+            action = BucketTagAction(
+                self.key,
+                self.secret,
+                self.session_token,
+                getattr(self, "actual_region", self.region),
+                endpoint,
+            )
+            return action.put_bucket_tag(target_bucket)
+
+        for res in self.executor.map(_add_bucket_tag, need_tag_buckets):
             if res[1]:
                 self.cached_bucket_set.add(res[0])
 
diff --git a/tosfs/tests/test_tag.py b/tosfs/tests/test_tag.py
index 7230932..2071912 100644
--- a/tosfs/tests/test_tag.py
+++ b/tosfs/tests/test_tag.py
@@ -36,7 +36,7 @@ def test_bucket_tag_action(tosfs, bucket, temporary_workspace):
         return
 
     tag_mgr.cached_bucket_set = set()
-    tag_mgr.add_bucket_tag(bucket)
+    tag_mgr.add_bucket_tag(bucket, "https://example.com/tag-service")
     sleep(10)
     assert os.path.exists(TAGGED_BUCKETS_FILE)
     with open(TAGGED_BUCKETS_FILE, "r") as f: