diff --git a/litellm/anthropic_beta_headers_config.json b/litellm/anthropic_beta_headers_config.json
index 1e99e35aabe..4ebb5ddb609 100644
--- a/litellm/anthropic_beta_headers_config.json
+++ b/litellm/anthropic_beta_headers_config.json
@@ -24,7 +24,8 @@
     "code-execution-2025-08-25",
     "skills-2025-10-02",
     "files-api-2025-04-14",
-    "fast-mode-2026-02-01"
+    "fast-mode-2026-02-01",
+    "mcp-servers-2025-12-04"
   ],
   "vertex_ai": [
     "prompt-caching-scope-2026-01-05"