diff --git a/litellm/proxy/_lazy_openapi_snapshot.json b/litellm/proxy/_lazy_openapi_snapshot.json
index 8331f748c6e..43c18922e1c 100644
--- a/litellm/proxy/_lazy_openapi_snapshot.json
+++ b/litellm/proxy/_lazy_openapi_snapshot.json
@@ -3572,7 +3572,7 @@
       "/anthropic/{endpoint}": {
         "delete": {
           "description": "[Docs](https://docs.litellm.ai/docs/pass_through/anthropic_completion)",
-          "operationId": "anthropic_proxy_route_anthropic__endpoint__put",
+          "operationId": "anthropic_proxy_route_anthropic__endpoint__patch",
           "parameters": [
             {
               "in": "path",
@@ -3616,7 +3616,7 @@
         },
         "get": {
           "description": "[Docs](https://docs.litellm.ai/docs/pass_through/anthropic_completion)",
-          "operationId": "anthropic_proxy_route_anthropic__endpoint__put",
+          "operationId": "anthropic_proxy_route_anthropic__endpoint__patch",
           "parameters": [
             {
               "in": "path",
@@ -3660,7 +3660,7 @@
         },
         "patch": {
           "description": "[Docs](https://docs.litellm.ai/docs/pass_through/anthropic_completion)",
-          "operationId": "anthropic_proxy_route_anthropic__endpoint__put",
+          "operationId": "anthropic_proxy_route_anthropic__endpoint__patch",
           "parameters": [
             {
               "in": "path",
@@ -3704,7 +3704,7 @@
         },
         "post": {
           "description": "[Docs](https://docs.litellm.ai/docs/pass_through/anthropic_completion)",
-          "operationId": "anthropic_proxy_route_anthropic__endpoint__put",
+          "operationId": "anthropic_proxy_route_anthropic__endpoint__patch",
           "parameters": [
             {
               "in": "path",
@@ -3748,7 +3748,7 @@
         },
         "put": {
           "description": "[Docs](https://docs.litellm.ai/docs/pass_through/anthropic_completion)",
-          "operationId": "anthropic_proxy_route_anthropic__endpoint__put",
+          "operationId": "anthropic_proxy_route_anthropic__endpoint__patch",
           "parameters": [
             {
               "in": "path",
@@ -13260,7 +13260,7 @@
       "/langfuse/{endpoint}": {
         "delete": {
           "description": "Call Langfuse via LiteLLM proxy. Works with Langfuse SDK.\n\n[Docs](https://docs.litellm.ai/docs/pass_through/langfuse)",
-          "operationId": "langfuse_proxy_route_langfuse__endpoint__put",
+          "operationId": "langfuse_proxy_route_langfuse__endpoint__patch",
           "parameters": [
             {
               "in": "path",
@@ -13299,7 +13299,7 @@
         },
         "get": {
           "description": "Call Langfuse via LiteLLM proxy. Works with Langfuse SDK.\n\n[Docs](https://docs.litellm.ai/docs/pass_through/langfuse)",
-          "operationId": "langfuse_proxy_route_langfuse__endpoint__put",
+          "operationId": "langfuse_proxy_route_langfuse__endpoint__patch",
           "parameters": [
             {
               "in": "path",
@@ -13338,7 +13338,7 @@
         },
         "patch": {
           "description": "Call Langfuse via LiteLLM proxy. Works with Langfuse SDK.\n\n[Docs](https://docs.litellm.ai/docs/pass_through/langfuse)",
-          "operationId": "langfuse_proxy_route_langfuse__endpoint__put",
+          "operationId": "langfuse_proxy_route_langfuse__endpoint__patch",
           "parameters": [
             {
               "in": "path",
@@ -13377,7 +13377,7 @@
         },
         "post": {
           "description": "Call Langfuse via LiteLLM proxy. Works with Langfuse SDK.\n\n[Docs](https://docs.litellm.ai/docs/pass_through/langfuse)",
-          "operationId": "langfuse_proxy_route_langfuse__endpoint__put",
+          "operationId": "langfuse_proxy_route_langfuse__endpoint__patch",
           "parameters": [
             {
               "in": "path",
@@ -13416,7 +13416,7 @@
         },
         "put": {
           "description": "Call Langfuse via LiteLLM proxy. Works with Langfuse SDK.\n\n[Docs](https://docs.litellm.ai/docs/pass_through/langfuse)",
-          "operationId": "langfuse_proxy_route_langfuse__endpoint__put",
+          "operationId": "langfuse_proxy_route_langfuse__endpoint__patch",
           "parameters": [
             {
               "in": "path",
@@ -26883,7 +26883,7 @@
       "/toolset/{toolset_name}/mcp": {
         "delete": {
           "description": "Namespace a toolset as its own MCP endpoint.\n\nConnecting to /toolset/<name>/mcp exposes exactly the tools defined in\nthe toolset. Access is enforced: non-admin API keys must have the toolset\nlisted in their object_permission.mcp_toolsets grant list, or the request\nwill be rejected with a 403.",
-          "operationId": "toolset_mcp_route_toolset__toolset_name__mcp_put",
+          "operationId": "toolset_mcp_route_toolset__toolset_name__mcp_patch",
           "parameters": [
             {
               "in": "path",
@@ -26922,7 +26922,7 @@
         },
         "get": {
           "description": "Namespace a toolset as its own MCP endpoint.\n\nConnecting to /toolset/<name>/mcp exposes exactly the tools defined in\nthe toolset. Access is enforced: non-admin API keys must have the toolset\nlisted in their object_permission.mcp_toolsets grant list, or the request\nwill be rejected with a 403.",
-          "operationId": "toolset_mcp_route_toolset__toolset_name__mcp_put",
+          "operationId": "toolset_mcp_route_toolset__toolset_name__mcp_patch",
           "parameters": [
             {
               "in": "path",
@@ -26961,7 +26961,7 @@
         },
         "head": {
           "description": "Namespace a toolset as its own MCP endpoint.\n\nConnecting to /toolset/<name>/mcp exposes exactly the tools defined in\nthe toolset. Access is enforced: non-admin API keys must have the toolset\nlisted in their object_permission.mcp_toolsets grant list, or the request\nwill be rejected with a 403.",
-          "operationId": "toolset_mcp_route_toolset__toolset_name__mcp_put",
+          "operationId": "toolset_mcp_route_toolset__toolset_name__mcp_patch",
           "parameters": [
             {
               "in": "path",
@@ -27000,7 +27000,7 @@
         },
         "options": {
           "description": "Namespace a toolset as its own MCP endpoint.\n\nConnecting to /toolset/<name>/mcp exposes exactly the tools defined in\nthe toolset. Access is enforced: non-admin API keys must have the toolset\nlisted in their object_permission.mcp_toolsets grant list, or the request\nwill be rejected with a 403.",
-          "operationId": "toolset_mcp_route_toolset__toolset_name__mcp_put",
+          "operationId": "toolset_mcp_route_toolset__toolset_name__mcp_patch",
           "parameters": [
             {
               "in": "path",
@@ -27039,7 +27039,7 @@
         },
         "patch": {
           "description": "Namespace a toolset as its own MCP endpoint.\n\nConnecting to /toolset/<name>/mcp exposes exactly the tools defined in\nthe toolset. Access is enforced: non-admin API keys must have the toolset\nlisted in their object_permission.mcp_toolsets grant list, or the request\nwill be rejected with a 403.",
-          "operationId": "toolset_mcp_route_toolset__toolset_name__mcp_put",
+          "operationId": "toolset_mcp_route_toolset__toolset_name__mcp_patch",
           "parameters": [
             {
               "in": "path",
@@ -27078,7 +27078,7 @@
         },
         "post": {
           "description": "Namespace a toolset as its own MCP endpoint.\n\nConnecting to /toolset/<name>/mcp exposes exactly the tools defined in\nthe toolset. Access is enforced: non-admin API keys must have the toolset\nlisted in their object_permission.mcp_toolsets grant list, or the request\nwill be rejected with a 403.",
-          "operationId": "toolset_mcp_route_toolset__toolset_name__mcp_put",
+          "operationId": "toolset_mcp_route_toolset__toolset_name__mcp_patch",
           "parameters": [
             {
               "in": "path",
@@ -27117,7 +27117,7 @@
         },
         "put": {
           "description": "Namespace a toolset as its own MCP endpoint.\n\nConnecting to /toolset/<name>/mcp exposes exactly the tools defined in\nthe toolset. Access is enforced: non-admin API keys must have the toolset\nlisted in their object_permission.mcp_toolsets grant list, or the request\nwill be rejected with a 403.",
-          "operationId": "toolset_mcp_route_toolset__toolset_name__mcp_put",
+          "operationId": "toolset_mcp_route_toolset__toolset_name__mcp_patch",
           "parameters": [
             {
               "in": "path",
diff --git a/litellm/proxy/auth/auth_utils.py b/litellm/proxy/auth/auth_utils.py
index ba858a89fbc..97870cfcf04 100644
--- a/litellm/proxy/auth/auth_utils.py
+++ b/litellm/proxy/auth/auth_utils.py
@@ -988,16 +988,15 @@ def _append_model_candidates(candidates: List[str], value: Any) -> None:
     if value is None:
         return
 
-    if isinstance(value, str):
-        model_names = [model.strip() for model in value.split(",")]
-    elif isinstance(value, (list, tuple, set)):
-        for item in value:
-            _append_model_candidates(candidates=candidates, value=item)
-        return
-    else:
-        model_names = [str(value).strip()]
-
-    candidates.extend(model for model in model_names if model)
+    values = value if isinstance(value, (list, tuple, set)) else [value]
+    for item in values:
+        if item is None:
+            continue
+        if isinstance(item, str):
+            model_names = [model.strip() for model in item.split(",")]
+        else:
+            model_names = [str(item).strip()]
+        candidates.extend(model for model in model_names if model)
 
 
 def _dedupe_model_candidates(candidates: List[str]) -> List[str]: