diff --git a/src/middleware.ts b/src/middleware.ts
new file mode 100644
index 00000000..39858af3
--- /dev/null
+++ b/src/middleware.ts
@@ -0,0 +1,26 @@
+import { NextResponse } from 'next/server';
+import type { NextRequest } from 'next/server';
+
+export function middleware(req: NextRequest) {
+  const res = NextResponse.next();
+
+  // Set CORS headers
+  res.headers.set('Access-Control-Allow-Origin', '*');
+  res.headers.set('Access-Control-Allow-Methods', 'GET,POST,PUT,DELETE,OPTIONS');
+  res.headers.set('Access-Control-Allow-Headers', 'Content-Type, Authorization');
+
+  // Handle preflight OPTIONS request
+  if (req.method === 'OPTIONS') {
+    return new NextResponse(null, {
+      status: 204,
+      headers: res.headers,
+    });
+  }
+
+  return res;
+}
+
+// Apply only to /api/v1/* routes
+export const config = {
+  matcher: ['/api/v1/:path*'],
+};