try fully with 'api-rewrite'

_dot_vercel_copy/output/functions/api.func/router.js

@@ -26,25 +26,25 @@ export default async (req, res) => {
     case "/api":
       api(req, res);
       break;
-    case "/api/gist":
+    case "/api-rewrite/gist":
       gist(req, res);
       break;
-    case "/api/pin":
+    case "/api-rewrite/pin":
       pin(req, res);
       break;
-    case "/api/top-langs":
+    case "/api-rewrite/top-langs":
       topLangs(req, res);
       break;
-    case "/api/wakatime":
+    case "/api-rewrite/wakatime":
       wakatime(req, res);
       break;
-    case "/api/repeat-recent":
+    case "/api-rewrite/repeat-recent":
       repeatRecent(req, res);
       break;
-    case "/api/status/pat-info":
+    case "/api-rewrite/status/pat-info":
       patInfo(req, res);
       break;
-    case "/api/status/up":
+    case "/api-rewrite/status/up":
       statusUp(req, res);
       break;
     default:

vercel.json

@@ -2,8 +2,8 @@
   "buildCommand": "npm install && mkdir --parents .vercel/output/functions/api.func/ && cp --recursive ./* .vercel/output/functions/api.func/ && cp --recursive .vercel/output/functions/api.func/_dot_vercel_copy/output/ .vercel/",
   "rewrites": [
     {
-      "source": "/dummy/:match*",
-      "destination": "/api/:match*"
+      "source": "/api/:match*",
+      "destination": "/api-rewrite/:match*"
     }
   ],
   "redirects": [