diff --git a/src/middleware/index.ts b/src/middleware/index.ts
index 2a4494b..efd11fa 100644
--- a/src/middleware/index.ts
+++ b/src/middleware/index.ts
@@ -2,8 +2,9 @@ import { defineMiddleware } from "astro:middleware";
 import { supabase } from "../lib/supabase";
 import micromatch from "micromatch";
 
-const protectedRoutes = ["/dashboard(|/)", "/api/guestbook(|/)"];
+const protectedRoutes = ["/dashboard(|/)"];
 const redirectRoutes = ["/signin(|/)", "/register(|/)"];
+const proptectedAPIRoutes = ["/api/guestbook(|/)"];
 
 export const onRequest = defineMiddleware(
   async ({ locals, url, cookies, redirect }, next) => {
@@ -51,7 +52,37 @@ export const onRequest = defineMiddleware(
         return redirect("/dashboard");
       }
     }
-    
+
+    if (micromatch.isMatch(url.pathname, proptectedAPIRoutes)) {
+      const accessToken = cookies.get("sb-access-token");
+      const refreshToken = cookies.get("sb-refresh-token");
+
+      // Check for tokens
+      if (!accessToken || !refreshToken) {
+        return new Response(
+          JSON.stringify({
+            error: "Unauthorized",
+          }),
+          { status: 401 },
+        );
+      }
+
+      // Verify the tokens
+      const { error } = await supabase.auth.setSession({
+        access_token: accessToken.value,
+        refresh_token: refreshToken.value,
+      });
+
+      if (error) {
+        return new Response(
+          JSON.stringify({
+            error: "Unauthorized",
+          }),
+          { status: 401 },
+        );
+      }
+    }
+
     return next();
   },
 );