diff --git a/litellm/litellm_core_utils/get_litellm_params.py b/litellm/litellm_core_utils/get_litellm_params.py
index 04755f9e1e9..1b2cb4b0fa8 100644
--- a/litellm/litellm_core_utils/get_litellm_params.py
+++ b/litellm/litellm_core_utils/get_litellm_params.py
@@ -76,6 +76,7 @@ OPTIONAL_KWARGS_KEYS: Final = (
             "otpm",
             "use_xai_oauth",
             "github_copilot_auth_type",
+            "litellm_credential_name",
             "github_copilot_user_session",
             "fireworks_forward_user_id",
             PROVIDER_AFFINITY_HEADER_KWARG_KEY,
diff --git a/litellm/main.py b/litellm/main.py
index 474d82e8ef1..021901a551e 100644
--- a/litellm/main.py
+++ b/litellm/main.py
@@ -5707,6 +5707,7 @@ def completion(
                     *OPENAI_WIF_KWARGS_KEYS,
                     *OAUTH_TOKEN_EXCHANGE_KWARGS_KEYS,
                     "github_copilot_auth_type",
+                    "litellm_credential_name",
                     "github_copilot_user_session",
                     PROVIDER_AFFINITY_HEADER_KWARG_KEY,
                     "fireworks_forward_user_id",
diff --git a/tests/unit/llms/github_copilot/test_per_user_auth.py b/tests/unit/llms/github_copilot/test_per_user_auth.py
index 9b16d3c0aa7..b138177e443 100644
--- a/tests/unit/llms/github_copilot/test_per_user_auth.py
+++ b/tests/unit/llms/github_copilot/test_per_user_auth.py
@@ -688,6 +688,24 @@ def test_e2e_responses_per_user_credential(per_user_credential):
     assert response.usage.total_tokens == 6
 
 
+@pytest.mark.asyncio
+async def test_e2e_acompletion_bridged_to_responses_per_user_credential(per_user_credential):
+    with (
+        github_http(_copilot_surface_responder(_responses_payload())) as requests,
+        _no_authenticator(),
+    ):
+        response = await litellm.acompletion(
+            model="github_copilot/gpt-5.3-codex",
+            messages=[{"role": "user", "content": "hi"}],
+            litellm_credential_name="copilot-cred",
+            github_copilot_auth_type="per_user_oauth",
+            secret_fields=_secret_fields("user-a", "gho_a"),
+        )
+    _assert_exchange_then_model_call(requests, "gho_a")
+    assert requests[-1].url.path == "/responses"
+    assert response.usage.total_tokens == 6
+
+
 @pytest.mark.asyncio
 async def test_e2e_anthropic_messages_per_user_credential(per_user_credential):
     with (