diff --git a/litellm/llms/base_llm/auth/token_exchange.py b/litellm/llms/base_llm/auth/token_exchange.py
index 6243a97a51a..a6567455490 100644
--- a/litellm/llms/base_llm/auth/token_exchange.py
+++ b/litellm/llms/base_llm/auth/token_exchange.py
@@ -170,14 +170,14 @@ def _shares_a_credential_run(rendered: str, compacted_secret: str) -> bool:
     """``unquote`` covers a credential sent form-encoded, without every caller enumerating that
     shape for itself: percent-escaping is reversible and applies to any field, query string
     included."""
-    for candidate in (rendered, unquote(rendered)):
-        compacted: Final = _CREDENTIAL_CHARS.sub("", candidate)
-        if any(
-            compacted[start : start + _REFLECTION_MIN_RUN] in compacted_secret
-            for start in range(len(compacted) - _REFLECTION_MIN_RUN + 1)
-        ):
-            return True
-    return False
+    compacted_candidates: Final = tuple(
+        _CREDENTIAL_CHARS.sub("", candidate) for candidate in (rendered, unquote(rendered))
+    )
+    return any(
+        compacted[start : start + _REFLECTION_MIN_RUN] in compacted_secret
+        for compacted in compacted_candidates
+        for start in range(len(compacted) - _REFLECTION_MIN_RUN + 1)
+    )
 
 
 def _redact_body_text(body_text: str) -> str:
diff --git a/tests/test_litellm/litellm_core_utils/test_get_litellm_params.py b/tests/test_litellm/litellm_core_utils/test_get_litellm_params.py
index 3ccb2632fb4..d84bb54eb1a 100644
--- a/tests/test_litellm/litellm_core_utils/test_get_litellm_params.py
+++ b/tests/test_litellm/litellm_core_utils/test_get_litellm_params.py
@@ -300,6 +300,8 @@ class TestAnthropicWifIdentitySourceKeys:
         "anthropic_keycloak_auth_method": "client_secret_basic",
         "anthropic_keycloak_client_secret_ref": "oidc/env/KC_SECRET",
         "anthropic_keycloak_scope": "anthropic-wif",
+        # Server-set when a client redirects api_base; carried here so it is not dropped in transit
+        "anthropic_disable_workload_identity_federation": True,
     }
 
     def test_new_keys_are_exactly_the_non_legacy_registered_set(self):
diff --git a/ui/litellm-dashboard/src/lib/http/schema.d.ts b/ui/litellm-dashboard/src/lib/http/schema.d.ts
index 678c3e7ae99..aee0c26bd17 100644
--- a/ui/litellm-dashboard/src/lib/http/schema.d.ts
+++ b/ui/litellm-dashboard/src/lib/http/schema.d.ts
@@ -27463,6 +27463,8 @@ export interface components {
             allow_client_keepalive_override: boolean | null;
             /** Annotation Cost Per Page */
             annotation_cost_per_page?: number | null;
+            /** Anthropic Disable Workload Identity Federation */
+            anthropic_disable_workload_identity_federation?: boolean | null;
             /** Anthropic Federation Rule Id */
             anthropic_federation_rule_id?: string | null;
             /** Anthropic Identity Source */
@@ -36781,6 +36783,8 @@ export interface components {
             allow_client_keepalive_override: boolean | null;
             /** Annotation Cost Per Page */
             annotation_cost_per_page?: number | null;
+            /** Anthropic Disable Workload Identity Federation */
+            anthropic_disable_workload_identity_federation?: boolean | null;
             /** Anthropic Federation Rule Id */
             anthropic_federation_rule_id?: string | null;
             /** Anthropic Identity Source */