diff --git a/docs/my-website/docs/providers/anthropic.md b/docs/my-website/docs/providers/anthropic.md
index 8d1d02fa4..deb640b17 100644
--- a/docs/my-website/docs/providers/anthropic.md
+++ b/docs/my-website/docs/providers/anthropic.md
@@ -22,6 +22,7 @@ Anthropic API fails requests when `max_tokens` are not passed. Due to this litel
 import os
 
 os.environ["ANTHROPIC_API_KEY"] = "your-api-key"
+# os.environ["ANTHROPIC_API_BASE"] = "" # [OPTIONAL] or 'ANTHROPIC_BASE_URL'
 ```
 
 ## Usage
diff --git a/litellm/main.py b/litellm/main.py
index 628349d09..7e0e534ad 100644
--- a/litellm/main.py
+++ b/litellm/main.py
@@ -1487,6 +1487,7 @@ def completion(
                     api_base
                     or litellm.api_base
                     or get_secret("ANTHROPIC_API_BASE")
+                    or get_secret("ANTHROPIC_BASE_URL")
                     or "https://api.anthropic.com/v1/complete"
                 )
                 response = anthropic_text_completions.completion(
@@ -1512,6 +1513,7 @@ def completion(
                     api_base
                     or litellm.api_base
                     or get_secret("ANTHROPIC_API_BASE")
+                    or get_secret("ANTHROPIC_BASE_URL")
                     or "https://api.anthropic.com/v1/messages"
                 )
                 response = anthropic_chat_completions.completion(