diff --git a/.github/workflows/mainnet.yml b/.github/workflows/mainnet.yml
index 852fd57f1..c75d8f5ed 100644
--- a/.github/workflows/mainnet.yml
+++ b/.github/workflows/mainnet.yml
@@ -7,7 +7,7 @@ on:
 
 # TODO: Use variables when GH supports it for forks. See https://github.com/orgs/community/discussions/44322
 env:
-  RPC_PROVIDER_URL: "https://rpc-mainnet.maticvigil.com"
+  RPC_PROVIDER_URL: 'https://rpc-amoy.polygon.technology'
   ENCRYPTOR_PRIVATE_KEY: ${{ secrets.MAINNET_ENCRYPTOR_PRIVATE_KEY }}
   CONSUMER_PRIVATE_KEY: ${{ secrets.MAINNET_CONSUMER_PRIVATE_KEY }}
   RITUAL_ID: "9"
diff --git a/examples/taco/nodejs/src/index.ts b/examples/taco/nodejs/src/index.ts
index 42d453f1c..9d5b595c5 100644
--- a/examples/taco/nodejs/src/index.ts
+++ b/examples/taco/nodejs/src/index.ts
@@ -8,6 +8,7 @@ import {
   fromBytes,
   getPorterUri,
   initialize,
+  isAuthorized,
   ThresholdMessageKit,
   toBytes,
   toHexString,
@@ -72,6 +73,17 @@ const encryptToBytes = async (messageString: string) => {
     encryptorSigner,
   );
 
+  // Calling it after the encryption because we need material from messageKit
+  const isEncryptorAuthenticated = await isAuthorized(
+    provider,
+    domain,
+    messageKit,
+    ritualId,
+  );
+  if (!isEncryptorAuthenticated) {
+    throw new Error('Not authorized');
+  }
+
   return messageKit.toBytes();
 };