diff --git a/eval_protocol/adapters/fireworks_tracing.py b/eval_protocol/adapters/fireworks_tracing.py
index 8e5c7d15..4913e33b 100644
--- a/eval_protocol/adapters/fireworks_tracing.py
+++ b/eval_protocol/adapters/fireworks_tracing.py
@@ -253,6 +253,7 @@ def __init__(
         project_id: Optional[str] = None,
         base_url: str = "https://tracing.fireworks.ai",
         timeout: int = 300,
+        api_key: Optional[str] = None,
     ):
         """Initialize the Fireworks Tracing adapter.
 
@@ -260,10 +261,16 @@ def __init__(
             project_id: Optional project ID. If not provided, uses the default project configured on the server.
             base_url: The base URL of the tracing proxy (default: https://tracing.fireworks.ai)
             timeout: Request timeout in seconds (default: 300)
+            api_key: Optional API key. If not provided, falls back to FIREWORKS_API_KEY environment variable.
         """
         self.project_id = project_id
         self.base_url = base_url.rstrip("/")
         self.timeout = timeout
+        self._api_key = api_key
+
+    def _get_api_key(self) -> Optional[str]:
+        """Get the API key, preferring instance-level key over environment variable."""
+        return self._api_key or os.environ.get("FIREWORKS_API_KEY")
 
     def search_logs(self, tags: List[str], limit: int = 100, hours_back: int = 24) -> List[Dict[str, Any]]:
         """Fetch logs from Fireworks tracing gateway /logs endpoint.
@@ -276,7 +283,7 @@ def search_logs(self, tags: List[str], limit: int = 100, hours_back: int = 24) -
         from ..common_utils import get_user_agent
 
         headers = {
-            "Authorization": f"Bearer {os.environ.get('FIREWORKS_API_KEY')}",
+            "Authorization": f"Bearer {self._get_api_key()}",
             "User-Agent": get_user_agent(),
         }
         params: Dict[str, Any] = {"tags": tags, "limit": limit, "hours_back": hours_back, "program": "eval_protocol"}
@@ -407,7 +414,7 @@ def get_evaluation_rows(
         from ..common_utils import get_user_agent
 
         headers = {
-            "Authorization": f"Bearer {os.environ.get('FIREWORKS_API_KEY')}",
+            "Authorization": f"Bearer {self._get_api_key()}",
             "User-Agent": get_user_agent(),
         }
 
diff --git a/eval_protocol/pytest/tracing_utils.py b/eval_protocol/pytest/tracing_utils.py
index 158fcbb4..7d6b1714 100644
--- a/eval_protocol/pytest/tracing_utils.py
+++ b/eval_protocol/pytest/tracing_utils.py
@@ -19,7 +19,9 @@ def default_fireworks_output_data_loader(config: DataLoaderConfig) -> DynamicDat
 
     def fetch_traces() -> List[EvaluationRow]:
         base_url = config.model_base_url or "https://tracing.fireworks.ai"
-        adapter = FireworksTracingAdapter(base_url=base_url)
+        # Use EP_REMOTE_API_KEY for fetching remote traces, falling back to FIREWORKS_API_KEY
+        api_key = os.environ.get("EP_REMOTE_API_KEY") or os.environ.get("FIREWORKS_API_KEY")
+        adapter = FireworksTracingAdapter(base_url=base_url, api_key=api_key)
         return adapter.get_evaluation_rows(tags=[f"rollout_id:{config.rollout_id}"], max_retries=5)
 
     return DynamicDataLoader(generators=[fetch_traces], preprocess_fn=filter_longest_conversation)
@@ -131,7 +133,9 @@ def build_init_request(
         final_model_base_url = build_fireworks_tracing_url(model_base_url, meta, completion_params_base_url)
 
     # Extract API key from environment or completion_params
-    api_key = os.environ.get("FIREWORKS_API_KEY")
+    # EP_REMOTE_API_KEY takes precedence for remote rollout processors,
+    # falling back to FIREWORKS_API_KEY for backwards compatibility
+    api_key = os.environ.get("EP_REMOTE_API_KEY") or os.environ.get("FIREWORKS_API_KEY")
 
     return InitRequest(
         completion_params=completion_params_dict,