Create dependencies.py

app/dependencies.py

@@ -0,0 +1,7 @@
+from fastapi import Header, HTTPException
+
+API_KEY = "your-admin-key"  # OR read from env/secrets
+
+def require_api_key(x_api_key: str = Header(...)):
+    if x_api_key != API_KEY:
+        raise HTTPException(status_code=403, detail="Invalid API Key")