diff --git a/src/perplexity/_client.py b/src/perplexity/_client.py
index eec3b46..3c510d1 100644
--- a/src/perplexity/_client.py
+++ b/src/perplexity/_client.py
@@ -179,6 +179,8 @@ def default_headers(self) -> dict[str, str | Omit]:
         return {
             **super().default_headers,
             "X-Stainless-Async": "false",
+            "X-Source": "perplexity-py",
+            "X-Title": "Perplexity Python SDK",
             **self._custom_headers,
         }
 
@@ -391,6 +393,8 @@ def default_headers(self) -> dict[str, str | Omit]:
         return {
             **super().default_headers,
             "X-Stainless-Async": f"async:{get_async_library()}",
+            "X-Source": "perplexity-py",
+            "X-Title": "Perplexity Python SDK",
             **self._custom_headers,
         }