Try adding lnurlp logic into .well-known endpoint directly instead of redirect endpoint

src/pages/api/.well-known/lnurlp/[slug].js

@@ -1,10 +1,46 @@
+import appConfig from "@/config/appConfig"
 import { runMiddleware, corsMiddleware } from "@/utils/corsMiddleware";
+import { getLightningAddressByName } from "@/db/models/lightningAddressModels";
+
+const BACKEND_URL = process.env.BACKEND_URL
+const ZAP_PUBKEY = process.env.ZAP_PUBKEY
 
 export default async function handler(req, res) {
     // Run CORS middleware first
     await runMiddleware(req, res, corsMiddleware);
     
-    // Redirect to your lightning address endpoint
     const { slug } = req.query;
-    res.redirect(307, `/api/lightning-address/lnurlp/${slug}`);
+
+    if (!slug || slug === 'undefined') {
+        res.status(404).json({ error: 'Not found' })
+        return
+    }
+
+    let foundAddress = null;
+    const customAddress = appConfig.customLightningAddresses.find(addr => addr.name === slug);
+
+    if (customAddress) {
+        foundAddress = customAddress;
+    } else {
+        foundAddress = await getLightningAddressByName(slug);
+    }
+
+    if (!foundAddress) {
+        res.status(404).json({ error: 'Lightning address not found' })
+        return
+    }
+
+    const metadata = [
+        ["text/plain", `${foundAddress.description}`]
+    ];
+
+    res.status(200).json({
+        callback: `${BACKEND_URL}/api/lightning-address/callback/${foundAddress.name}`,
+        maxSendable: foundAddress.maxSendable || 10000000000,
+        minSendable: foundAddress.minSendable || 1000,
+        metadata: JSON.stringify(metadata),
+        tag: 'payRequest',
+        allowsNostr: true,
+        nostrPubkey: ZAP_PUBKEY
+    });
 }