diff --git a/enterprise/litellm_enterprise/litellm_core_utils/litellm_logging.py b/enterprise/litellm_enterprise/litellm_core_utils/litellm_logging.py
new file mode 100644
index 0000000000..44ba0063ff
--- /dev/null
+++ b/enterprise/litellm_enterprise/litellm_core_utils/litellm_logging.py
@@ -0,0 +1,28 @@
+"""
+Enterprise specific logging utils
+"""
+from litellm.litellm_core_utils.litellm_logging import StandardLoggingMetadata
+
+
+class StandardLoggingPayloadSetup:
+    @staticmethod
+    def apply_enterprise_specific_metadata(
+        standard_logging_metadata: StandardLoggingMetadata,
+        proxy_server_request: dict,
+    ) -> StandardLoggingMetadata:
+        """
+        Adds enterprise-only metadata to the standard logging metadata.
+        """
+
+        _request_headers = proxy_server_request.get("headers", {})
+
+        if _request_headers:
+            custom_headers = {
+                k: v
+                for k, v in _request_headers.items()
+                if k.startswith("x-") and v is not None and isinstance(v, str)
+            }
+
+            standard_logging_metadata["requester_custom_headers"] = custom_headers
+
+        return standard_logging_metadata
diff --git a/litellm/litellm_core_utils/litellm_logging.py b/litellm/litellm_core_utils/litellm_logging.py
index 242f0873c8..bfcbb3e14d 100644
--- a/litellm/litellm_core_utils/litellm_logging.py
+++ b/litellm/litellm_core_utils/litellm_logging.py
@@ -13,7 +13,18 @@ import traceback
 import uuid
 from datetime import datetime as dt_object
 from functools import lru_cache
-from typing import Any, Callable, Dict, List, Literal, Optional, Tuple, Union, cast
+from typing import (
+    Any,
+    Callable,
+    Dict,
+    List,
+    Literal,
+    Optional,
+    Tuple,
+    Type,
+    Union,
+    cast,
+)
 
 from pydantic import BaseModel
 
@@ -143,6 +154,13 @@ try:
     from litellm_enterprise.enterprise_callbacks.send_emails.smtp_email import (
         SMTPEmailLogger,
     )
+    from litellm_enterprise.litellm_core_utils.litellm_logging import (
+        StandardLoggingPayloadSetup as EnterpriseStandardLoggingPayloadSetup,
+    )
+
+    EnterpriseStandardLoggingPayloadSetupVAR: Optional[
+        Type[EnterpriseStandardLoggingPayloadSetup]
+    ] = EnterpriseStandardLoggingPayloadSetup
 except Exception as e:
     verbose_logger.debug(
         f"[Non-Blocking] Unable to import GenericAPILogger - LiteLLM Enterprise Feature - {str(e)}"
@@ -150,6 +168,7 @@ except Exception as e:
     GenericAPILogger = CustomLogger  # type: ignore
     ResendEmailLogger = CustomLogger  # type: ignore
     SMTPEmailLogger = CustomLogger  # type: ignore
+    EnterpriseStandardLoggingPayloadSetupVAR = None
 _in_memory_loggers: List[Any] = []
 
 ### GLOBAL VARIABLES ###
@@ -3328,6 +3347,7 @@ class StandardLoggingPayloadSetup:
             List[StandardLoggingVectorStoreRequest]
         ] = None,
         usage_object: Optional[dict] = None,
+        proxy_server_request: Optional[dict] = None,
     ) -> StandardLoggingMetadata:
         """
         Clean and filter the metadata dictionary to include only the specified keys in StandardLoggingMetadata.
@@ -3377,6 +3397,7 @@ class StandardLoggingPayloadSetup:
             mcp_tool_call_metadata=mcp_tool_call_metadata,
             vector_store_request_metadata=vector_store_request_metadata,
             usage_object=usage_object,
+            requester_custom_headers=None,
         )
         if isinstance(metadata, dict):
             # Filter the metadata dictionary to include only the specified keys
@@ -3399,6 +3420,16 @@ class StandardLoggingPayloadSetup:
                 and isinstance(_potential_requester_metadata, dict)
             ):
                 clean_metadata["requester_metadata"] = _potential_requester_metadata
+
+        if (
+            EnterpriseStandardLoggingPayloadSetupVAR
+            and proxy_server_request is not None
+        ):
+            clean_metadata = EnterpriseStandardLoggingPayloadSetupVAR.apply_enterprise_specific_metadata(
+                standard_logging_metadata=clean_metadata,
+                proxy_server_request=proxy_server_request,
+            )
+
         return clean_metadata
 
     @staticmethod
@@ -3730,6 +3761,7 @@ def get_standard_logging_object_payload(
         clean_hidden_params = StandardLoggingPayloadSetup.get_hidden_params(
             hidden_params
         )
+
         # clean up litellm metadata
         clean_metadata = StandardLoggingPayloadSetup.get_standard_logging_metadata(
             metadata=metadata,
@@ -3741,6 +3773,7 @@ def get_standard_logging_object_payload(
                 "vector_store_request_metadata", None
             ),
             usage_object=usage.model_dump(),
+            proxy_server_request=proxy_server_request,
         )
 
         _request_body = proxy_server_request.get("body", {})
@@ -3886,6 +3919,7 @@ def get_standard_logging_metadata(
         mcp_tool_call_metadata=None,
         vector_store_request_metadata=None,
         usage_object=None,
+        requester_custom_headers=None,
     )
     if isinstance(metadata, dict):
         # Filter the metadata dictionary to include only the specified keys
diff --git a/litellm/proxy/_new_secret_config.yaml b/litellm/proxy/_new_secret_config.yaml
index b8ea7aa9a8..b7d1f4188f 100644
--- a/litellm/proxy/_new_secret_config.yaml
+++ b/litellm/proxy/_new_secret_config.yaml
@@ -72,3 +72,6 @@ model_list:
     model_info: 
       id: my-unique-azure-deployment
       mode: batch
+
+litellm_settings:
+  success_callback: ["generic_api"]
diff --git a/litellm/types/utils.py b/litellm/types/utils.py
index 63c4835ae8..47c1547909 100644
--- a/litellm/types/utils.py
+++ b/litellm/types/utils.py
@@ -1785,6 +1785,9 @@ class StandardLoggingMetadata(StandardLoggingUserAPIKeyMetadata):
     ]  # special param to log k,v pairs to spendlogs for a call
     requester_ip_address: Optional[str]
     requester_metadata: Optional[dict]
+    requester_custom_headers: Optional[
+        Dict[str, str]
+    ]  # Log any custom (`x-`) headers sent by the client to the proxy.
     prompt_management_metadata: Optional[StandardLoggingPromptManagementMetadata]
     mcp_tool_call_metadata: Optional[StandardLoggingMCPToolCall]
     vector_store_request_metadata: Optional[List[StandardLoggingVectorStoreRequest]]
diff --git a/tests/logging_callback_tests/test_otel_logging.py b/tests/logging_callback_tests/test_otel_logging.py
index 29f9d30517..7018471a53 100644
--- a/tests/logging_callback_tests/test_otel_logging.py
+++ b/tests/logging_callback_tests/test_otel_logging.py
@@ -277,6 +277,7 @@ def validate_redacted_message_span_attributes(span):
         "metadata.applied_guardrails",
         "metadata.mcp_tool_call_metadata",
         "metadata.vector_store_request_metadata",
+        "metadata.requester_custom_headers",
     ]
 
     _all_attributes = set(