Update README.md

README.md

@@ -8,3 +8,20 @@ pinned: false
 ---
 
 Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference
+# Codex ReflexGuard — Enterprise API
+
+Codex ReflexGuard is a reflex-level safety intelligence engine
+for pre-emptive anomaly detection and system defense.
+
+## Endpoint
+POST /v1/reflex/check
+
+## Headers
+X-API-Key: <your-key>
+
+## Example Request
+```json
+{
+  "scenario": "memory surge override detected",
+  "source": "control-plane"
+}