diff --git a/eureka_ml_insights/configs/model_configs.py b/eureka_ml_insights/configs/model_configs.py
index 1b83a7b..fd0b152 100644
--- a/eureka_ml_insights/configs/model_configs.py
+++ b/eureka_ml_insights/configs/model_configs.py
@@ -16,6 +16,8 @@
     TestModel,
 )
 
+from azure.identity import DefaultAzureCredential
+
 from .config import ModelConfig
 
 # For models that require secret keys, you can store the keys in a json file and provide the path to the file
@@ -32,6 +34,7 @@
     "key_name": "your_openai_secret_key_name",
     "local_keys_path": "keys/keys.json",
     "key_vault_url": None,
+    "credential_func": DefaultAzureCredential,
 }
 
 OAI_O1_PREVIEW_CONFIG = ModelConfig(
@@ -96,6 +99,7 @@
     "key_name": "your_gemini_secret_key_name",
     "local_keys_path": "keys/keys.json",
     "key_vault_url": None,
+    "credential_func": DefaultAzureCredential,
 }
 
 GEMINI_V15_PRO_CONFIG = ModelConfig(
@@ -119,6 +123,7 @@
     "key_name": "your_claude_secret_key_name",
     "local_keys_path": "keys/keys.json",
     "key_vault_url": None,
+    "credential_func": DefaultAzureCredential,
 }
 
 CLAUDE_3_OPUS_CONFIG = ModelConfig(
@@ -168,6 +173,7 @@
             "key_name": "your_llama_secret_key_name",
             "local_keys_path": "keys/keys.json",
             "key_vault_url": None,
+            "credential_func": DefaultAzureCredential,
         },
         "model_name": "meta-llama-3-1-70b-instruct",
     },
@@ -181,6 +187,7 @@
             "key_name": "your_llama_secret_key_name",
             "local_keys_path": "keys/keys.json",
             "key_vault_url": None,
+            "credential_func": DefaultAzureCredential,
         },
         "model_name": "Meta-Llama-3-1-405B-Instruct",
     },
@@ -195,6 +202,7 @@
             "key_name": "your_mistral_secret_key_name",
             "local_keys_path": "keys/keys.json",
             "key_vault_url": None,
+            "credential_func": DefaultAzureCredential,
         },
         "model_name": "Mistral-large-2407",
     },
diff --git a/eureka_ml_insights/data_utils/data.py b/eureka_ml_insights/data_utils/data.py
index 55fd556..d954135 100644
--- a/eureka_ml_insights/data_utils/data.py
+++ b/eureka_ml_insights/data_utils/data.py
@@ -8,7 +8,6 @@
 
 import jsonlines
 import pandas as pd
-from azure.identity import DefaultAzureCredential
 from azure.storage.blob import BlobClient, ContainerClient
 from datasets import load_dataset
 from PIL import Image
@@ -234,6 +233,7 @@ def __init__(
         path,
         account_url,
         blob_container,
+        credential_func:callable=lambda _: None,
         total_lines=None,
         image_column_names=None,
         image_column_search_regex="image",
@@ -260,7 +260,7 @@ def __init__(
         self.container_client = ContainerClient(
             account_url=self.account_url,
             container_name=self.blob_container,
-            credential=DefaultAzureCredential(),
+            credential=credential_func(),
             logger=self.logger,
         )
 
@@ -312,13 +312,13 @@ def read(self):
 class AzureBlobReader:
     """Reads an Azure storage blob from a full URL to a str"""
 
-    def read_azure_blob(self, blob_url) -> str:
+    def read_azure_blob(self, blob_url, credential_func:callable=lambda _: None) -> str:
         """
         Reads an Azure storage blob..
         args:
             blob_url: str, The Azure storage blob full URL.
         """
-        blob_client = BlobClient.from_blob_url(blob_url, credential=DefaultAzureCredential(), logger=self.logger)
+        blob_client = BlobClient.from_blob_url(blob_url, credential=credential_func(), logger=self.logger)
         # real all the bytes from the blob
         file = blob_client.download_blob().readall()
         file = file.decode("utf-8")
@@ -336,6 +336,7 @@ def __init__(
         account_url: str,
         blob_container: str,
         blob_name: str,
+        credential_func:callable=lambda _: None,
     ):
         """
         Initializes an AzureJsonReader.
@@ -346,10 +347,11 @@ def __init__(
         """
         self.blob_url = f"{account_url}/{blob_container}/{blob_name}"
         super().__init__(self.blob_url)
+        self.credential_func = credential_func
         self.logger = AzureStorageLogger().get_logger()
 
     def read(self) -> dict:
-        file = super().read_azure_blob(self.blob_url)
+        file = super().read_azure_blob(self.blob_url, credential_func=self.credential_func)
         if self.format == ".json":
             data = json.loads(file)
         elif self.format == ".jsonl":
@@ -464,6 +466,7 @@ def __init__(
         account_url: str,
         blob_container: str,
         blob_name: str,
+        credential_func:callable = lambda _: None,
         format: str = None,
         transform: Optional[DFTransformBase] = None,
         **kwargs,
@@ -480,10 +483,11 @@ def __init__(
         """
         self.blob_url = f"{account_url}/{blob_container}/{blob_name}"
         super().__init__(self.blob_url, format, transform, **kwargs)
+        self.credential_func = credential_func
         self.logger = AzureStorageLogger().get_logger()
 
     def _load_dataset(self) -> pd.DataFrame:
-        file = super().read_azure_blob(self.blob_url)
+        file = super().read_azure_blob(self.blob_url, credential_func=self.credential_func)
         if self.format == ".jsonl":
             jlr = jsonlines.Reader(file.splitlines())
             df = pd.DataFrame(jlr.iter(skip_empty=True, skip_invalid=True))
diff --git a/eureka_ml_insights/metrics/kitab_metrics.py b/eureka_ml_insights/metrics/kitab_metrics.py
index c11aafb..d8f0a94 100644
--- a/eureka_ml_insights/metrics/kitab_metrics.py
+++ b/eureka_ml_insights/metrics/kitab_metrics.py
@@ -17,7 +17,6 @@
     ServiceRequestError,
     ServiceResponseError,
 )
-from azure.identity import DefaultAzureCredential
 from fuzzywuzzy import fuzz
 
 from eureka_ml_insights.metrics import CompositeMetric
@@ -38,12 +37,14 @@ def __init__(self, temp_path_names, azure_lang_service_config):
             "https://huggingface.co/datasets/microsoft/kitab/raw/main/code/utils/gpt_4_name_data_processed.csv",
             temp_path_names,
         )
+        self.credential_func = azure_lang_service_config["secret_key_params"].get("credential_func", lambda _: None)
         # requires an Azure Cognitive Services Endpoint
         # (ref: https://learn.microsoft.com/en-us/azure/ai-services/language-service/)
         self.key = get_secret(
             key_name=azure_lang_service_config["secret_key_params"].get("key_name", None),
             local_keys_path=azure_lang_service_config["secret_key_params"].get("local_keys_path", None),
             key_vault_url=azure_lang_service_config["secret_key_params"].get("key_vault_url", None),
+            credential_func=self.credential_func
         )
         self.endpoint = azure_lang_service_config["url"]
         self.text_analytics_credential = self.get_verified_credential()
@@ -58,11 +59,11 @@ def get_verified_credential(self):
             logging.info(f"Failed to create the TextAnalyticsClient using AzureKeyCredential")
             logging.info("The error is caused by: {}".format(e))
         try:
-            text_analytics_client = TextAnalyticsClient(endpoint=self.endpoint, credential=DefaultAzureCredential())
+            text_analytics_client = TextAnalyticsClient(endpoint=self.endpoint, credential=self.credential_func())
             text_analytics_client.recognize_entities(["New York City"], model_version=model_version)
-            return DefaultAzureCredential()
+            return self.credential_func()
         except Exception as e:
-            logging.info(f"Failed to create the TextAnalyticsClient using DefaultAzureCredential")
+            logging.info(f"Failed to create the TextAnalyticsClient using provided credential func")
             logging.info("The error is caused by: {}".format(e))
         return None
 
diff --git a/eureka_ml_insights/models/models.py b/eureka_ml_insights/models/models.py
index 5681171..21ac1c0 100644
--- a/eureka_ml_insights/models/models.py
+++ b/eureka_ml_insights/models/models.py
@@ -9,7 +9,7 @@
 
 import anthropic
 import tiktoken
-from azure.identity import DefaultAzureCredential, get_bearer_token_provider
+from azure.identity import get_bearer_token_provider
 
 from eureka_ml_insights.secret_management import get_secret
 
@@ -222,6 +222,8 @@ class ServerlessAzureRestEndpointModel(EndpointModel, KeyBasedAuthMixIn):
     stream: bool = False
 
     def __post_init__(self):
+        if self.secret_key_params is None:
+            raise ValueError("secret_key_params must be provided.")
         try:
             super().__post_init__()
             self.headers = {
@@ -235,7 +237,7 @@ def __post_init__(self):
             }
         except ValueError:
             self.bearer_token_provider = get_bearer_token_provider(
-                DefaultAzureCredential(), "https://cognitiveservices.azure.com/.default"
+                self.secret_key_params["credential_func"](), "https://cognitiveservices.azure.com/.default"
             )
             self.headers = {
                 "Content-Type": "application/json",
@@ -400,11 +402,15 @@ def get_response(self, request):
 class AzureOpenAIClientMixIn:
     """This mixin provides some methods to interact with Azure OpenAI models."""
 
+    def __post_init__(self):
+        if self.secret_key_params is None:
+            raise ValueError("secret_key_params must be provided.")
+
     def get_client(self):
         from openai import AzureOpenAI
 
         token_provider = get_bearer_token_provider(
-            DefaultAzureCredential(), "https://cognitiveservices.azure.com/.default"
+            self.secret_key_params["credential_func"](), "https://cognitiveservices.azure.com/.default"
         )
         return AzureOpenAI(
             azure_endpoint=self.url,
diff --git a/eureka_ml_insights/secret_management/secret_key_utils.py b/eureka_ml_insights/secret_management/secret_key_utils.py
index ab4c61c..3a0e903 100644
--- a/eureka_ml_insights/secret_management/secret_key_utils.py
+++ b/eureka_ml_insights/secret_management/secret_key_utils.py
@@ -3,13 +3,12 @@
 import os
 from typing import Dict, Optional
 
-from azure.identity import DefaultAzureCredential, DeviceCodeCredential
 from azure.keyvault.secrets import SecretClient
 
 logging.basicConfig(level=logging.INFO, format="%(filename)s - %(funcName)s - %(message)s")
 
 
-def get_secret(key_name: str, local_keys_path:Optional[str]=None, key_vault_url:Optional[str]=None) -> Optional[str]:
+def get_secret(key_name: str, local_keys_path:Optional[str]=None, key_vault_url:Optional[str]=None, credential_func=lambda _: None) -> Optional[str]:
     """This function retrieves a key from key vault or if it is locally cached in a file.
     args:
         key_name: str, the name of the key to retrieve.
@@ -41,7 +40,7 @@ def get_secret(key_name: str, local_keys_path:Optional[str]=None, key_vault_url:
                 f"Key [{key_name}] not found in local keys file [{local_keys_path}] and key_vault_url is not provided."
             )
         else:
-            key_value = get_key_from_azure(key_name, key_vault_url)
+            key_value = get_key_from_azure(key_name, key_vault_url, credential_func=credential_func)
 
     # if the key still wasn't found, raise an error
     if key_value is None:
@@ -59,7 +58,7 @@ def get_secret(key_name: str, local_keys_path:Optional[str]=None, key_vault_url:
     return key_value
 
 
-def get_key_from_azure(key_name: str, key_vault_url: str) -> Optional[str]:
+def get_key_from_azure(key_name: str, key_vault_url: str, credential_func=lambda _: None) -> Optional[str]:
     """This function retrieves a key from azure key vault.
     args:
         key_name: str, the name of the key to retrieve.
@@ -69,23 +68,14 @@ def get_key_from_azure(key_name: str, key_vault_url: str) -> Optional[str]:
     """
     logging.getLogger("azure").setLevel(logging.ERROR)
     try:
-        logging.info(f"Trying to get the key from Azure Key Vault {key_vault_url} using DefaultAzureCredential")
-        credential = DefaultAzureCredential(additionally_allowed_tenants=["*"])
+        logging.info("Trying to get the key from Azure Key Vault using provided func")
+        credential = credential_func(additionally_allowed_tenants=["*"])
         client = SecretClient(vault_url=key_vault_url, credential=credential)
         retrieved_key = client.get_secret(key_name)
         return retrieved_key.value
     except Exception as e:
-        logging.info(f"Failed to get the key from Azure Key Vault {key_vault_url} using DefaultAzureCredential")
+        logging.info("Failed to get the key from Azure Key Vault using provided func")
         logging.info("The error is caused by: {}".format(e))
-    try:
-        logging.info(f"Trying to get the key from Azure Key Vault {key_vault_url} using DeviceCodeCredential")
-        credential = DeviceCodeCredential(additionally_allowed_tenants=["*"])
-        client = SecretClient(vault_url=key_vault_url, credential=credential)
-        retrieved_key = client.get_secret(key_name)
-        return retrieved_key.value
-    except Exception as e:
-        logging.error("Failed to get the key from Azure Key Vault using DeviceCodeCredential")
-        logging.error("The error is caused by: {}".format(e))
         return None
 
 
diff --git a/eureka_ml_insights/user_configs/kitab.py b/eureka_ml_insights/user_configs/kitab.py
index 0decdab..a193ed0 100644
--- a/eureka_ml_insights/user_configs/kitab.py
+++ b/eureka_ml_insights/user_configs/kitab.py
@@ -35,6 +35,8 @@
 )
 from eureka_ml_insights.configs import ExperimentConfig
 
+from azure.identity import DefaultAzureCredential
+
 # Example template for an Azure Language Service config
 # required for running entity recognition for evaluating human and city name
 AZURE_LANG_SERVICE_CONFIG = {
@@ -43,6 +45,7 @@
         "key_name": "your_azure_lang_service_secret_key_name",
         "local_keys_path": "keys/keys.json",
         "key_vault_url": None,
+        "credential_func": DefaultAzureCredential,
     },
 }
 
diff --git a/tests/test_utils.py b/tests/test_utils.py
index 3a71510..afc659f 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -9,6 +9,7 @@
 )
 from eureka_ml_insights.metrics import ClassicMetric, CompositeMetric
 
+from azure.identity import DefaultAzureCredential
 
 class TestModel:
     def __init__(self, model_name="generic_test_model"):
@@ -265,5 +266,5 @@ def __init__(self, path, n_iter, image_column_names=None):
 
 class TestAzureMMDataLoader(EarlyStoppableIterable, AzureMMDataLoader):
     def __init__(self, path, n_iter, account_url, blob_container, image_column_names=None):
-        super().__init__(path, account_url, blob_container, image_column_names=image_column_names)
+        super().__init__(path, account_url, blob_container, credential_func=DefaultAzureCredential, image_column_names=image_column_names)
         self.n_iter = n_iter