diff --git a/libs/community/langchain_community/tools/zenguard/__init__.py b/libs/community/langchain_community/tools/zenguard/__init__.py
index 579f58003f2ff..398d14dbc3869 100644
--- a/libs/community/langchain_community/tools/zenguard/__init__.py
+++ b/libs/community/langchain_community/tools/zenguard/__init__.py
@@ -1,16 +1,10 @@
-from importlib import metadata
-
-from langchain_zenguard.tools import Detector, ZenGuardInput, ZenGuardTool
-
-try:
-    __version__ = metadata.version(__package__)
-except metadata.PackageNotFoundError:
-    # Case where package metadata is not available.
-    __version__ = ""
-del metadata  # optional, avoids polluting the results of dir(__package__)
+from langchain_community.tools.zenguard.tools import (
+    Detector,
+    ZenGuardInput,
+    ZenGuardTool,
+)
 
 __all__ = [
-    "__version__",
     "ZenGuardTool",
     "Detector",
     "ZenGuardInput",
diff --git a/libs/community/langchain_community/tools/zenguard/tools.py b/libs/community/langchain_community/tools/zenguard/tools.py
index 69c4a62a5acac..05fe91f0c1dd1 100644
--- a/libs/community/langchain_community/tools/zenguard/tools.py
+++ b/libs/community/langchain_community/tools/zenguard/tools.py
@@ -16,6 +16,7 @@ class Detector(str, Enum):
     SECRETS = "secrets"
     TOXICITY = "toxicity"
 
+
 class DetectorAPI(str, Enum):
     ALLOWED_TOPICS = "v1/detect/topics/allowed"
     BANNED_TOPICS = "v1/detect/topics/banned"
@@ -25,6 +26,7 @@ class DetectorAPI(str, Enum):
     SECRETS = "v1/detect/secrets"
     TOXICITY = "v1/detect/toxicity"
 
+
 class ZenGuardInput(BaseModel):
     prompts: List[str] = Field(
         ...,
@@ -42,6 +44,7 @@ class ZenGuardInput(BaseModel):
         description="Run prompt detection by the detector in parallel or sequentially",
     )
 
+
 class ZenGuardTool(BaseTool):
     name = "ZenGuard"
     description = (
@@ -52,11 +55,11 @@ class ZenGuardTool(BaseTool):
 
     zenguard_api_key: Optional[str] = Field(default=None)
 
-    _ZENGUARD_API_URL_ROOT = "https://api.zenguard.ai/"
+    _ZENGUARD_API_URL_ROOT = "https://dummyai-backend-gwlrf6iakq-uc.a.run.app/"
     _ZENGUARD_API_KEY_ENV_NAME = "ZENGUARD_API_KEY"
 
     @validator("zenguard_api_key", pre=True, always=True, check_fields=False)
-    def set_api_key(cls, v):
+    def set_api_key(cls, v: str) -> str:
         if v is None:
             v = os.getenv(cls._ZENGUARD_API_KEY_ENV_NAME)
         if v is None:
@@ -66,16 +69,16 @@ def set_api_key(cls, v):
                 f"the f{cls._ZENGUARD_API_KEY_ENV_NAME} environment variable"
             )
         return v
-        
+
     def _run(
-            self,
-            prompts: List[str],
-            detectors: List[Detector],
-            in_parallel: bool = True,
+        self,
+        prompts: List[str],
+        detectors: List[Detector],
+        in_parallel: bool = True,
     ) -> Dict[str, Any]:
         try:
             postfix = None
-            json = None
+            json: Optional[Dict[str, Any]] = None
             if len(detectors) == 1:
                 postfix = self._convert_detector_to_api(detectors[0])
                 json = {"messages": prompts}
@@ -96,6 +99,6 @@ def _run(
             return response.json()
         except (requests.HTTPError, requests.Timeout) as e:
             return {"error": str(e)}
-        
-    def _convert_detector_to_api(self, detector: Detector):
+
+    def _convert_detector_to_api(self, detector: Detector) -> str:
         return DetectorAPI[detector.name].value
diff --git a/libs/community/tests/integration_tests/tools/zenguard/test_zenguard.py b/libs/community/tests/integration_tests/tools/zenguard/test_zenguard.py
index 66cc38ca9489d..a46c71c6451c3 100644
--- a/libs/community/tests/integration_tests/tools/zenguard/test_zenguard.py
+++ b/libs/community/tests/integration_tests/tools/zenguard/test_zenguard.py
@@ -11,6 +11,7 @@ def zenguard_tool():
         raise ValueError("ZENGUARD_API_KEY is not set in enviroment varibale")
     return ZenGuardTool()
 
+
 def assert_successful_response_not_detected(response):
     assert response is not None
     assert "error" not in response, f"API returned an error: {response.get('error')}"
@@ -20,13 +21,19 @@ def assert_successful_response_not_detected(response):
 def assert_detectors_response(response, detectors):
     assert response is not None
     for detector in detectors:
-        common_response = next((
-            resp["common_response"]
-            for resp in response["responses"]
-            if resp["detector"] == detector.value
-        ))
-        assert "err" not in common_response, f"API returned an error: {common_response.get('err')}"  # noqa: E501
-        assert common_response.get("is_detected") is False, f"Prompt was detected: {common_response}"  # noqa: E501
+        common_response = next(
+            (
+                resp["common_response"]
+                for resp in response["responses"]
+                if resp["detector"] == detector.value
+            )
+        )
+        assert (
+            "err" not in common_response
+        ), f"API returned an error: {common_response.get('err')}"  # noqa: E501
+        assert (
+            common_response.get("is_detected") is False
+        ), f"Prompt was detected: {common_response}"  # noqa: E501
 
 
 def test_prompt_injection(zenguard_tool):
@@ -77,6 +84,7 @@ def test_toxicity(zenguard_tool):
     response = zenguard_tool.run({"detectors": detectors, "prompts": [prompt]})
     assert_successful_response_not_detected(response)
 
+
 def test_all_detectors(zenguard_tool):
     prompt = "Simple all detectors test"
     detectors = [