diff --git a/litellm/__pycache__/main.cpython-311.pyc b/litellm/__pycache__/main.cpython-311.pyc
index c75deb7212..e84e64bc54 100644
Binary files a/litellm/__pycache__/main.cpython-311.pyc and b/litellm/__pycache__/main.cpython-311.pyc differ
diff --git a/litellm/__pycache__/utils.cpython-311.pyc b/litellm/__pycache__/utils.cpython-311.pyc
index 3c19ed7225..8d25a43261 100644
Binary files a/litellm/__pycache__/utils.cpython-311.pyc and b/litellm/__pycache__/utils.cpython-311.pyc differ
diff --git a/litellm/main.py b/litellm/main.py
index ad197a9191..7803de2a96 100644
--- a/litellm/main.py
+++ b/litellm/main.py
@@ -164,7 +164,6 @@ def completion(
          os.environ["REPLICATE_API_TOKEN"] = api_key
       elif litellm.replicate_key:
          os.environ["REPLICATE_API_TOKEN"] = litellm.replicate_key
-
       prompt = " ".join([message["content"] for message in messages])
       input = {"prompt": prompt}
       if max_tokens != float('inf'):
@@ -199,7 +198,7 @@ def completion(
       if api_key:
          os.environ["ANTHROPIC_API_KEY"] = api_key
       elif litellm.anthropic_key:
-         os.environ["ANTHROPIC_API_TOKEN"] = litellm.anthropic_key
+         os.environ["ANTHROPIC_API_KEY"] = litellm.anthropic_key
       prompt = f"{HUMAN_PROMPT}" 
       for message in messages:
         if "role" in message:
diff --git a/litellm/tests/test_api_key_param.py b/litellm/tests/test_api_key_param.py
index 7ffffcda88..6213730f51 100644
--- a/litellm/tests/test_api_key_param.py
+++ b/litellm/tests/test_api_key_param.py
@@ -15,14 +15,27 @@ def logger_fn(model_call_object: dict):
 user_message = "Hello, how are you?"
 messages = [{ "content": user_message,"role": "user"}]
 
-print(os.environ)
-temp_key = os.environ.get("OPENAI_API_KEY")
-os.environ["OPENAI_API_KEY"] = "bad-key"
+## Test 1: Setting key dynamically
+temp_key = os.environ.get("ANTHROPIC_API_KEY")
+os.environ["ANTHROPIC_API_KEY"] = "bad-key"
 # test on openai completion call 
 try:
-    response = completion(model="gpt-3.5-turbo", messages=messages, logger_fn=logger_fn, api_key=temp_key)
+    response = completion(model="claude-instant-1", messages=messages, logger_fn=logger_fn, api_key=temp_key)
     print(f"response: {response}")
 except:
     print(f"error occurred: {traceback.format_exc()}") 
     pass
-os.environ["OPENAI_API_KEY"] = temp_key
+os.environ["ANTHROPIC_API_KEY"] = temp_key
+
+
+## Test 2: Setting key via __init__ params
+litellm.anthropic_key = os.environ.get("ANTHROPIC_API_KEY")
+os.environ.pop("ANTHROPIC_API_KEY")
+# test on openai completion call 
+try:
+    response = completion(model="claude-instant-1", messages=messages, logger_fn=logger_fn)
+    print(f"response: {response}")
+except:
+    print(f"error occurred: {traceback.format_exc()}") 
+    pass
+os.environ["ANTHROPIC_API_KEY"] = temp_key
diff --git a/litellm/utils.py b/litellm/utils.py
index 4f671a2314..411c21f245 100644
--- a/litellm/utils.py
+++ b/litellm/utils.py
@@ -417,7 +417,7 @@ def exception_type(model, original_exception):
           exception_type = ""
         logging(model=model, additional_args={"error_str": error_str, "exception_type": exception_type, "original_exception": original_exception}, logger_fn=user_logger_fn)
         if "claude" in model: #one of the anthropics
-          if "status_code" in original_exception:
+          if hasattr(original_exception, "status_code"):
             print_verbose(f"status_code: {original_exception.status_code}")
             if original_exception.status_code == 401:
               exception_mapping_worked = True
@@ -428,6 +428,9 @@ def exception_type(model, original_exception):
             elif original_exception.status_code == 429:
               exception_mapping_worked = True
               raise RateLimitError(f"AnthropicException - {original_exception.message}")
+          elif "Could not resolve authentication method. Expected either api_key or auth_token to be set." in error_str:
+            exception_mapping_worked = True
+            raise AuthenticationError(f"AnthropicException - {error_str}")
         elif "replicate" in model:
           if "Incorrect authentication token" in error_str:
             exception_mapping_worked = True
diff --git a/pyproject.toml b/pyproject.toml
index 98ace7d78b..15d3b592e3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "litellm"
-version = "0.1.353"
+version = "0.1.354"
 description = "Library to easily interface with LLM API providers"
 authors = ["BerriAI"]
 license = "MIT License"