Monitor USDT ERC-20 Wallet Balance with Etherscan and Telegram Notifications

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  "name": "Monitor USDT ERC-20 Wallet Balance with Etherscan and Telegram Notifications",
  "tags": [],
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      "name": "Balance Changed?",
      "type": "n8n-nodes-base.if",
      "position": [
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      "parameters": {
        "conditions": {
          "boolean": [
            {
              "value1": "={{$json.balanceChanged}}",
              "value2": true
            }
          ]
        }
      },
      "typeVersion": 1
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      "position": [
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      "webhookId": "a8fa72ce-638b-4245-bcbc-d59948ae1144",
      "parameters": {
        "text": "=🚨 *USDT Balance Change!*

Wallet Address: {{ $json.walletAddress }}

🔴 Previous Balance: {{parseFloat($json.previousBalance)/1e6}} USDT

🟢 New Balance: {{parseFloat($json.currentBalance)/1e6}} USDT",
        "chatId": "< Your Telegram Chat ID >",
        "additionalFields": {
          "parse_mode": "Markdown"
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      },
      "credentials": {
        "telegramApi": {
          "id": "Ge3vEXak2MymWtcp",
          "name": "Telegram account"
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      "webhookId": "a8fa72ce-638b-4245-bcbc-d59948ae1144",
      "parameters": {
        "text": "=Balance Unchanged. USDT balance remained stable.",
        "chatId": "< Your Telegram Chat ID >",
        "additionalFields": {
          "parse_mode": "Markdown"
        }
      },
      "typeVersion": 1
    },
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      "name": "userData",
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        "assignments": {
          "assignments": [
            {
              "id": "4455d1e7-a489-4ab6-a526-4fc755db99d0",
              "name": "Your Wallet Address",
              "type": "string",
              "value": "< Wallet Address Paste Here >"
            },
            {
              "id": "3d84deba-8093-42cf-833f-6891db778de7",
              "name": "Your Etherscan Api Key",
              "type": "string",
              "value": "< Etherscan Api Key Paste Here>"
            },
            {
              "id": "971ea723-e3de-4cff-b4e7-5899f3d8fb00",
              "name": "USDT ERC-20 Token Address",
              "type": "string",
              "value": "0xdAC17F958D2ee523a2206206994597C13D831ec7"
            }
          ]
        }
      },
      "typeVersion": 3.4
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      "name": "balanceChecker",
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      "parameters": {
        "jsCode": "const staticData = $getWorkflowStaticData('global');

const currentBalance = items[0].json.result;

const walletAddress = $('userData').first().json['Your Wallet Address']

let previousBalance = staticData.previousBalance;

if (!previousBalance) {
  staticData.previousBalance = currentBalance;
  previousBalance = currentBalance;
}

const balanceChanged = previousBalance !== currentBalance;

staticData.previousBalance = currentBalance;

return [{json: {balanceChanged, previousBalance, currentBalance, walletAddress}}];"
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      "position": [
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      "parameters": {
        "color": 4,
        "width": 1540,
        "height": 400,
        "content": "## USDT ERC-20 Wallet Balance Tracker
**This workflow** Is a basic concept of integrating your ERC-20 wallet with n8n nodes."
      },
      "typeVersion": 1
    },
    {
      "id": "7c8f0d69-6c37-469c-b466-89a467db9bbd",
      "name": "Check Balance Every 5 Minutes",
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    },
    {
      "id": "ea603f03-25e0-4c80-90f2-eb5f09e71ad1",
      "name": "Fetch USDT Balance from Etherscan",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
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      "parameters": {
        "url": "https://api.etherscan.io/api",
        "options": {},
        "sendQuery": true,
        "queryParameters": {
          "parameters": [
            {
              "name": "module",
              "value": "account"
            },
            {
              "name": "action",
              "value": "tokenbalance"
            },
            {
              "name": "address",
              "value": "={{ $json['Your Wallet Address'] }}"
            },
            {
              "name": "tag",
              "value": "latest"
            },
            {
              "name": "apikey",
              "value": "={{ $json['Your Etherscan Api Key'] }}"
            },
            {
              "name": "contractaddress",
              "value": "={{ $json['USDT ERC-20 Token Address'] }}"
            }
          ]
        }
      },
      "typeVersion": 3
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            "node": "Fetch USDT Balance from Etherscan",
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