diff --git a/litellm/llms/cohere.py b/litellm/llms/cohere.py
index 0ebdf38f1..14a66b54a 100644
--- a/litellm/llms/cohere.py
+++ b/litellm/llms/cohere.py
@@ -117,6 +117,7 @@ class CohereConfig:
 
 def validate_environment(api_key):
     headers = {
+        "Request-Source":"unspecified:litellm",
         "accept": "application/json",
         "content-type": "application/json",
     }
diff --git a/litellm/llms/cohere_chat.py b/litellm/llms/cohere_chat.py
index e4de6ddcb..8ae839243 100644
--- a/litellm/llms/cohere_chat.py
+++ b/litellm/llms/cohere_chat.py
@@ -112,6 +112,7 @@ class CohereChatConfig:
 
 def validate_environment(api_key):
     headers = {
+        "Request-Source":"unspecified:litellm",
         "accept": "application/json",
         "content-type": "application/json",
     }