From e668a313847c9fd946d9a84c7d42e1616e9b9431 Mon Sep 17 00:00:00 2001
From: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Date: Tue, 15 Sep 2026 02:43:48 +0000
Subject: [PATCH] fix(health): keep realtime credential hydration immutable

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
---
 litellm/realtime_api/main.py                 | 11 +++++++----
 tests/test_litellm/realtime_api/test_main.py |  5 ++++-
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/litellm/realtime_api/main.py b/litellm/realtime_api/main.py
index 336fb3cef12..6fdadc52f13 100644
--- a/litellm/realtime_api/main.py
+++ b/litellm/realtime_api/main.py
@@ -28,8 +28,9 @@ from litellm.types.realtime import (
 )
 from litellm.types.router import GenericLiteLLMParams
 from litellm.types.utils import CallTypes, LlmProviders
-from litellm.utils import ProviderConfigManager, load_credentials_from_list
+from litellm.utils import ProviderConfigManager
 
+from ..litellm_core_utils.credential_accessor import CredentialAccessor
 from ..litellm_core_utils.get_litellm_params import get_litellm_params
 from ..litellm_core_utils.litellm_logging import Logging as LiteLLMLogging
 from ..llms.azure.common_utils import get_azure_ad_token
@@ -57,9 +58,11 @@ _EMPTY_MODEL_PARAMS: Final[Mapping[str, Any]] = MappingProxyType({})
 
 
 def _model_params_with_stored_credentials(model_params: Mapping[str, Any]) -> Mapping[str, Any]:
-    hydrated: Final = dict(model_params)
-    load_credentials_from_list(hydrated)
-    return MappingProxyType(hydrated)
+    credential_name: Final = model_params.get("litellm_credential_name")
+    credential_values: Final = (
+        CredentialAccessor.get_credential_values(credential_name) if isinstance(credential_name, str) else {}
+    )
+    return MappingProxyType({**credential_values, **model_params})
 
 
 def _with_resolved_session_model(session: dict[str, object], model_name: str) -> dict[str, object]:
diff --git a/tests/test_litellm/realtime_api/test_main.py b/tests/test_litellm/realtime_api/test_main.py
index 25eeb0c407f..dcd4c01730d 100644
--- a/tests/test_litellm/realtime_api/test_main.py
+++ b/tests/test_litellm/realtime_api/test_main.py
@@ -267,10 +267,13 @@ async def test_azure_health_check_resolves_stored_credentials(monkeypatch):
             model="gpt-realtime",
             custom_llm_provider="azure",
             api_key=None,
+            realtime_protocol="beta",
             model_params={"model": "azure/gpt-realtime", "litellm_credential_name": "azure-rt"},
         )
     assert connect.kwargs["additional_headers"] == {"api-key": "sk-from-credential"}
-    assert connect.url is not None and connect.url.startswith("wss://example.openai.azure.com")
+    assert connect.url is not None
+    assert connect.url.startswith("wss://example.openai.azure.com")
+    assert "api-version=2025-04-01-preview" in connect.url
 
 
 @pytest.mark.asyncio