diff --git a/litellm/llms/anthropic.py b/litellm/llms/anthropic.py
index 31ecd81885..ed8470c934 100644
--- a/litellm/llms/anthropic.py
+++ b/litellm/llms/anthropic.py
@@ -70,6 +70,7 @@ def validate_environment(api_key):
 def completion(
     model: str,
     messages: list,
+    api_base: str,
     model_response: ModelResponse,
     print_verbose: Callable,
     encoding,
@@ -121,7 +122,7 @@ def completion(
     ## COMPLETION CALL
     if "stream" in optional_params and optional_params["stream"] == True:
         response = requests.post(
-            "https://api.anthropic.com/v1/complete",
+            api_base,
             headers=headers,
             data=json.dumps(data),
             stream=optional_params["stream"],
@@ -129,7 +130,7 @@ def completion(
         return response.iter_lines()
     else:
         response = requests.post(
-            "https://api.anthropic.com/v1/complete", headers=headers, data=json.dumps(data)
+            api_base, headers=headers, data=json.dumps(data)
         )
         ## LOGGING
         logging_obj.post_call(
diff --git a/litellm/main.py b/litellm/main.py
index 6512ded0ad..b05caa4538 100644
--- a/litellm/main.py
+++ b/litellm/main.py
@@ -582,9 +582,16 @@ def completion(
             anthropic_key = (
                 api_key or litellm.anthropic_key or os.environ.get("ANTHROPIC_API_KEY") or litellm.api_key
             )
+            api_base = (
+                api_base
+                or litellm.api_base
+                or get_secret("ANTHROPIC_API_BASE")
+                or "https://api.anthropic.com/v1/complete"
+            )
             model_response = anthropic.completion(
                 model=model,
                 messages=messages,
+                api_base=api_base,
                 model_response=model_response,
                 print_verbose=print_verbose,
                 optional_params=optional_params,