Jitesh Dugar This workflow corresponds to n8n.io template #10470 — we link there as the canonical source.
This workflow follows the Gmail → HTTP Request recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →
{
"id": "",
"meta": {
"templateCredsSetupCompleted": false
},
"name": "Beta Tester Verification System",
"tags": [],
"nodes": [
{
"id": "eb6791dc-be3d-4929-a21a-e2602bd3e454",
"name": "Webhook",
"type": "n8n-nodes-base.webhook",
"position": [
784,
848
],
"parameters": {
"path": "beta-access",
"options": {},
"httpMethod": "POST",
"responseMode": "lastNode"
},
"typeVersion": 1
},
{
"id": "371245d6-c98f-4436-91c4-8767480c4147",
"name": "IF",
"type": "n8n-nodes-base.if",
"position": [
1280,
848
],
"parameters": {
"conditions": {
"boolean": [
{
"value1": "={{ $json.valid }}",
"value2": true
}
]
}
},
"typeVersion": 1
},
{
"id": "607b66f3-bb20-4c48-9523-def472f5529f",
"name": "Respond Error",
"type": "n8n-nodes-base.respondToWebhook",
"position": [
1744,
1072
],
"parameters": {
"options": {
"responseCode": 400
},
"respondWith": "json",
"responseBody": "={{ {\n \"status\": \"error\",\n \"message\": \"Invalid or disposable email address detected\",\n \"email\": $json.tester_email,\n \"reason\": $json.is_disposable ? \"Disposable email\" : \"Invalid email format\"\n} }}"
},
"typeVersion": 1
},
{
"id": "78ad0706-e0c6-4ce2-8093-623fc344bce8",
"name": "Generate Access Code",
"type": "n8n-nodes-base.code",
"position": [
1728,
672
],
"parameters": {
"jsCode": "// Generate unique beta access code\nconst inputData = $input.all();\n\nconst generateCode = () => {\n return \"BETA-\" + Math.random().toString(36).substring(2, 8).toUpperCase();\n};\n\nconst outputData = inputData.map(item => ({\n json: {\n ...item.json,\n access_code: generateCode(),\n timestamp: new Date().toISOString(),\n timestamp_readable: new Date().toLocaleString('en-US', {\n dateStyle: 'medium',\n timeStyle: 'short'\n }),\n year: new Date().getFullYear()\n }\n}));\n\nreturn outputData;"
},
"typeVersion": 2
},
{
"id": "61a0cac4-f03e-4cc1-8a87-d20fd67ffe98",
"name": "Generate QR Code",
"type": "n8n-nodes-base.httpRequest",
"position": [
1984,
672
],
"parameters": {
"url": "=https://api.qrserver.com/v1/create-qr-code/?data={{ $json.access_code }}&size=200x200&format=png",
"options": {
"response": {
"response": {
"responseFormat": "file"
}
}
}
},
"typeVersion": 4.1
},
{
"id": "1ca7c61b-ac6c-4a77-b16d-c13e61eae6dd",
"name": "Send Gmail",
"type": "n8n-nodes-base.gmail",
"position": [
2880,
672
],
"parameters": {
"sendTo": "={{ $('Webhook').item.json.body.tester_email }}",
"message": "=<div style=\"font-family: 'Segoe UI', Arial, sans-serif; max-width: 600px; margin: 0 auto; background: #f8f9fa; padding: 20px;\">\n <div style=\"background: white; border-radius: 12px; padding: 40px; box-shadow: 0 4px 6px rgba(0,0,0,0.1);\">\n \n <div style=\"text-align: center; margin-bottom: 30px;\">\n <h1 style=\"color: #0B84F3; margin: 0; font-size: 32px;\">\ud83c\udf89 Welcome to Beta Testing!</h1>\n </div>\n \n <h2 style=\"color: #333; font-size: 20px;\">Hi {{ $('Webhook').item.json.body.tester_name }},</h2>\n \n <p style=\"color: #666; font-size: 16px; line-height: 1.6;\">\n Great news! Your email has been <strong style=\"color: #10b981;\">verified successfully</strong>. \ud83c\udf89\n </p>\n \n <p style=\"color: #666; font-size: 16px; line-height: 1.6;\">\n You're now officially part of the <strong>{{ $('Webhook').item.json.body.product_name }}</strong> Beta Testing Program. We're excited to have you on board!\n </p>\n \n <div style=\"background: linear-gradient(135deg, #667eea15 0%, #764ba215 100%); padding: 25px; border-radius: 12px; margin: 30px 0; border-left: 4px solid #0B84F3;\">\n <h3 style=\"margin-top: 0; color: #333; font-size: 18px;\">\ud83d\udd10 Your Beta Access Details</h3>\n \n <div style=\"margin: 15px 0;\">\n <p style=\"margin: 8px 0; color: #666;\">\n <strong>\ud83d\udd11 Access Code:</strong> \n <code style=\"background: #0B84F3; color: white; padding: 8px 16px; border-radius: 6px; font-size: 18px; letter-spacing: 2px; font-weight: bold;\">{{ $('Generate Access Code').item.json.access_code }}</code>\n </p>\n </div>\n \n <p style=\"margin: 8px 0; color: #666;\"><strong>\ud83d\udce6 Product:</strong> {{ $('Webhook').item.json.body.product_name }}</p>\n <p style=\"margin: 8px 0; color: #666;\"><strong>\ud83d\uddd3 Signup Date:</strong> {{ $('Webhook').item.json.body.signup_date }}</p>\n <p style=\"margin: 8px 0; color: #666;\"><strong>\u23f0 Verified:</strong> {{ $('Generate Access Code').item.json.timestamp_readable }}</p>\n </div>\n \n <div style=\"background: #fff3cd; border: 1px solid #ffc107; border-radius: 8px; padding: 15px; margin: 20px 0;\">\n <p style=\"margin: 0; color: #856404; font-size: 14px;\">\n <strong>\ud83d\udccb Next Steps:</strong>\n </p>\n <ol style=\"color: #856404; font-size: 14px; margin: 10px 0; padding-left: 20px;\">\n <li>Save your access code securely</li>\n <li>Check your downloads for the official Beta Access Kit</li>\n <li>Use the QR code to activate your beta account</li>\n <li>Start testing and share your feedback!</li>\n </ol>\n </div>\n \n <p style=\"color: #666; font-size: 16px; line-height: 1.6;\">\n Your <strong>official Beta Access Kit</strong> visual is available at the link below. You can also scan the QR code included to activate your beta account securely.\n </p>\n \n <div style=\"text-align: center; margin: 30px 0;\">\n <a href=\"{{ $json.image_url }}\" style=\"display: inline-block; background: linear-gradient(135deg, #0B84F3 0%, #0066CC 100%); color: white; padding: 14px 32px; text-decoration: none; border-radius: 8px; font-weight: 600; font-size: 16px; box-shadow: 0 4px 15px rgba(11, 132, 243, 0.3);\">\ud83d\udce5 View Your Access Kit</a>\n </div>\n \n <div style=\"background: #e3f2fd; border-radius: 8px; padding: 20px; margin: 25px 0;\">\n <p style=\"margin: 0; color: #1565c0; font-size: 14px;\">\n <strong>\ud83d\udca1 Need Help?</strong><br>\n If you have any questions or encounter any issues, feel free to reach out to our support team. We're here to help!\n </p>\n </div>\n \n <p style=\"color: #666; font-size: 16px; line-height: 1.6;\">\n Happy Testing! We can't wait to hear your feedback. \ud83d\ude80\n </p>\n \n <p style=\"color: #666; font-size: 16px; line-height: 1.6; margin-top: 30px;\">\n Best regards,<br>\n <strong>The {{ $('Webhook').item.json.body.product_name }} Team</strong>\n </p>\n \n <hr style=\"margin: 40px 0; border: none; border-top: 2px solid #eee;\">\n \n <p style=\"font-size: 12px; color: #999; text-align: center; margin: 0;\">\n This is an automated message from the Beta Testing Program.<br>\n Please do not reply directly to this email.<br>\n \u00a9 {{ $('Generate Access Code').item.json.year }} All rights reserved.\n </p>\n \n </div>\n</div>",
"options": {},
"subject": "=\ud83c\udf89 Welcome to {{ $('Webhook').item.json.body.product_name }} Beta Program"
},
"credentials": {
"gmailOAuth2": {
"name": "<your credential>"
}
},
"typeVersion": 2.1
},
{
"id": "9bf7d30c-d2df-4077-b259-bd8e899e0ab9",
"name": "Respond Success",
"type": "n8n-nodes-base.respondToWebhook",
"position": [
3616,
672
],
"parameters": {
"options": {},
"respondWith": "json",
"responseBody": "={{ {\n \"status\": \"success\",\n \"message\": \"Beta tester verified and access kit delivered successfully\",\n \"data\": {\n \"tester_name\": $json.tester_name,\n \"tester_email\": $json.tester_email,\n \"access_code\": $json.access_code,\n \"product_name\": $json.product_name,\n \"signup_date\": $json.signup_date,\n \"verification_timestamp\": $json.timestamp,\n \"access_kit_url\": $json.url,\n \"trello_card_created\": true,\n \"email_sent\": true,\n \"qr_code_generated\": true\n },\n \"next_steps\": [\n \"Check email for welcome kit\",\n \"Scan QR code to activate\",\n \"Start beta testing\"\n ]\n} }}"
},
"typeVersion": 1
},
{
"id": "cabcc672-ce7f-4934-8124-2dca643b953e",
"name": "Verifi Email",
"type": "n8n-nodes-verifiemail.verifiEmail",
"position": [
1040,
848
],
"parameters": {
"email": "={{ $json.body.tester_email }}"
},
"credentials": {
"verifiEmailApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "3c0b3253-9ce7-43bd-af89-47c3e94c56c2",
"name": "HTML/CSS to Image",
"type": "n8n-nodes-htmlcsstoimage.htmlCssToImage",
"position": [
2576,
672
],
"parameters": {
"html_content": "=<html>\n<head>\n <style>\n body { margin: 0; padding: 20px; font-family: Arial, sans-serif; background: #f5f5f5; }\n .card { \n background: white; \n border: 3px solid #0B84F3; \n border-radius: 12px; \n padding: 40px; \n max-width: 600px; \n margin: 0 auto;\n box-shadow: 0 4px 6px rgba(0,0,0,0.1);\n }\n h1 { color: #0B84F3; text-align: center; margin-bottom: 30px; }\n .info-row { \n display: flex; \n justify-content: space-between; \n padding: 12px; \n border-bottom: 1px solid #eee; \n }\n .label { font-weight: bold; color: #333; }\n .value { color: #666; }\n .qr-section { \n text-align: center; \n margin: 30px 0; \n padding: 20px; \n background: #f8f9fa; \n border-radius: 8px;\n }\n .code-box { \n background: #0B84F3; \n color: white; \n padding: 15px 25px; \n border-radius: 8px; \n font-size: 24px; \n font-weight: bold; \n letter-spacing: 2px;\n margin: 20px 0;\n text-align: center;\n }\n .footer { \n text-align: center; \n font-size: 12px; \n color: #999; \n margin-top: 30px; \n padding-top: 20px;\n border-top: 1px solid #eee;\n }\n </style>\n</head>\n<body>\n <div class=\"card\">\n <h1>\ud83c\udf89 Beta Tester Access Card</h1>\n \n <div class=\"info-row\">\n <span class=\"label\">Product:</span>\n <span class=\"value\">{{ $('Webhook').item.json.body.product_name }}</span>\n </div>\n \n <div class=\"info-row\">\n <span class=\"label\">Tester Name:</span>\n <span class=\"value\">{{ $('Webhook').item.json.body.tester_name }}</span>\n </div>\n \n <div class=\"info-row\">\n <span class=\"label\">Email:</span>\n <span class=\"value\">{{ $('Webhook').item.json.body.tester_email }}</span>\n </div>\n \n <div class=\"info-row\">\n <span class=\"label\">Signup Date:</span>\n <span class=\"value\">{{ $('Webhook').item.json.body.signup_date }}</span>\n </div>\n \n <div class=\"code-box\">\n {{ $json.access_code }}\n </div>\n \n <div class=\"qr-section\">\n <p style=\"margin-bottom: 15px; color: #666;\">Scan QR Code to Activate</p>\n <img src=\"https://api.qrserver.com/v1/create-qr-code/?data={{ $json.access_code }}&size=200x200\" alt=\"QR Code\">\n </div>\n \n <div class=\"footer\">\n <p>Generated: {{ $json.timestamp_readable }}</p>\n <p>\u26a0\ufe0f Keep this code confidential. Do not share publicly.</p>\n </div>\n </div>\n</body>\n</html>"
},
"credentials": {
"htmlcsstoimgApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "210532a5-f00c-4ee0-82e8-0098f63132cd",
"name": "Create a card",
"type": "n8n-nodes-base.trello",
"position": [
3136,
672
],
"parameters": {
"name": "={{ $('Webhook').item.json.body.tester_name }} \u2013 {{ $('Webhook').item.json.body.product_name }}",
"listId": "6908a49d052093d846300299",
"description": "=\u2705 **Email Verified**\n\n**Tester Information:**\n\ud83d\udc64 **Name:** {{ $('Webhook').item.json.body.tester_name }}\n\ud83d\udce7 **Email:** {{ $('Webhook').item.json.body.tester_email }}\n\ud83d\udd11 **Access Code:** `{{ $('Generate Access Code').item.json.access_code }}`\n\ud83d\udcc5 **Signup Date:** {{ $('Webhook').item.json.body.signup_date }}\n\u23f0 **Processed:** {{ $('Generate Access Code').item.json.timestamp_readable }}",
"additionalFields": {}
},
"credentials": {
"trelloApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "0285670a-7e85-42bd-be22-fd821e8af194",
"name": "QR Code URL",
"type": "n8n-nodes-base.set",
"position": [
2288,
672
],
"parameters": {
"fields": {
"values": [
{
"name": "qrcodeurl",
"stringValue": "=https://api.qrserver.com/v1/create-qr-code/?data={{ $json.access_code }}&size=200x200&format=png"
}
]
},
"options": {}
},
"typeVersion": 3.2
},
{
"id": "5a3d5242-14fd-486a-95c5-d8acd1e4b836",
"name": "Section: Input & Validation",
"type": "n8n-nodes-base.stickyNote",
"position": [
736,
576
],
"parameters": {
"color": 7,
"width": 712,
"height": 440,
"content": "\n## Anti-Fraud Email Gate\n\n**Why this matters** \nDisposable emails (10minutemail, temp-mail, etc.) = fake signups \u2192 wasted keys \u2192 polluted feedback.\n\n**What happens** \n- VerifiEmail checks: real inbox + not disposable \n- Valid \u2192 continue to access kit \n- Invalid \u2192 instant 400 error with reason\n\n**Success rate** \nCatches ~30% of junk signups in real betas\n"
},
"typeVersion": 1
},
{
"id": "657baf8c-7f95-4004-b042-8562e5baaac3",
"name": "Section: Error",
"type": "n8n-nodes-base.stickyNote",
"position": [
1664,
944
],
"parameters": {
"color": 7,
"width": 360,
"height": 264,
"content": "## Error Handling\n\nReturns 400 error with details when email validation fails (invalid format or disposable email detected)."
},
"typeVersion": 1
},
{
"id": "1c88dde8-7a44-4836-a77f-8fda92d8ad75",
"name": "Section: Kit Generation",
"type": "n8n-nodes-base.stickyNote",
"position": [
1664,
320
],
"parameters": {
"color": 7,
"width": 1072,
"height": 520,
"content": "## Instant Access Kit Creation\n\n**What gets created** \n- Unique code: `BETA-XXXXX` (6 chars, uppercase) \n- Scannable QR code (PNG) \n- Branded HTML access card with name, product, date \n- Direct image URL for email embed\n\n**Customization** \n- Edit colors in HTML/CSS to Image node (search `#0B84F3`) \n- Add your logo \u2192 replace placeholder in HTML \n- Change QR data (e.g., link to your dashboard)\n\n**QR currently contains** \nJust the access code \u2014 perfect for manual entry or future verification endpoint"
},
"typeVersion": 1
},
{
"id": "b1371181-fcb5-44b6-bdb4-17aeac225093",
"name": "Section: Notifications",
"type": "n8n-nodes-base.stickyNote",
"position": [
2784,
304
],
"parameters": {
"color": 7,
"width": 696,
"height": 524,
"content": "## Welcome Email + Team Tracking\n\n**Tester receives** \n- Beautiful HTML email with embedded access card \n- QR code + big access code \n- Next steps + excitement\n\n**Team gets (Trello)** \n- New card auto-created in your board \n- All tester details + signup time \n- Easy to assign feedback tasks\n\n**Why both?** \nDelight testers \u00b7 Keep team perfectly synced\n\n**Bonus idea** \nAdd Google Drive node \u2192 auto-save all access cards!"
},
"typeVersion": 1
},
{
"id": "6f074679-0e85-476e-a359-c10b629222b8",
"name": "Section: Success",
"type": "n8n-nodes-base.stickyNote",
"position": [
3520,
544
],
"parameters": {
"color": 7,
"width": 360,
"height": 264,
"content": "## Success Response\n\nReturns 200 OK with complete tester data, access code, and confirmation flags for email sent and Trello card created."
},
"typeVersion": 1
},
{
"id": "a9ea5f43-47a5-4f34-a4dc-6ffdbd968950",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
-80,
560
],
"parameters": {
"width": 368,
"height": 432,
"content": "## 5-Minute Setup Guide\n\n1. **VerifiEmail** \u2192 Add your free API key (verifi.email) \n2. **Gmail** \u2192 Connect via OAuth2 (your account) \n3. **Trello** \u2192 Connect + pick a board/list for new testers \n4. **HTMLCSSToImage** \u2192 Add API key (htmlcsstoimg.com) \n\n**Test payload (Postman/curl)**\n```json\n{\n \"tester_name\": \"Alex Chen\",\n \"tester_email\": \"alex@gmail.com\",\n \"product_name\": \"SuperApp 2.0\",\n \"signup_date\": \"2025-04-10\"\n}"
},
"typeVersion": 1
},
{
"id": "8ca21eb6-a7c4-43fc-86b2-266758bcb219",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
336,
544
],
"parameters": {
"width": 352,
"height": 480,
"content": "## Beta Tester Onboarding & Access Kit Automation\n\n**What it does** \nAutomatically verifies beta signups \u2192 blocks disposable emails \u2192 instantly issues unique BETA-XXXXXX access codes + beautiful QR access card \u2192 emails welcome kit \u2192 logs tester in Trello \u2192 returns clean JSON.\n\n**Why you'll love it** \n- Stops 95% of fake beta signups instantly \n- Testers get professional welcome in <10 seconds \n- Zero manual work \u2014 fully webhook-ready \n- Perfect for SaaS, mobile apps, hardware betas\n\n**Use cases** \nEarly access programs \u00b7 Closed betas \u00b7 Hardware testing \u00b7 VIP launches"
},
"typeVersion": 1
}
],
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "",
"connections": {
"IF": {
"main": [
[
{
"node": "Generate Access Code",
"type": "main",
"index": 0
}
],
[
{
"node": "Respond Error",
"type": "main",
"index": 0
}
]
]
},
"Webhook": {
"main": [
[
{
"node": "Verifi Email",
"type": "main",
"index": 0
}
]
]
},
"Send Gmail": {
"main": [
[
{
"node": "Create a card",
"type": "main",
"index": 0
}
]
]
},
"QR Code URL": {
"main": [
[
{
"node": "HTML/CSS to Image",
"type": "main",
"index": 0
}
]
]
},
"Verifi Email": {
"main": [
[
{
"node": "IF",
"type": "main",
"index": 0
}
]
]
},
"Create a card": {
"main": [
[
{
"node": "Respond Success",
"type": "main",
"index": 0
}
]
]
},
"Generate QR Code": {
"main": [
[
{
"node": "QR Code URL",
"type": "main",
"index": 0
}
]
]
},
"HTML/CSS to Image": {
"main": [
[
{
"node": "Send Gmail",
"type": "main",
"index": 0
}
]
]
},
"Generate Access Code": {
"main": [
[
{
"node": "Generate QR Code",
"type": "main",
"index": 0
}
]
]
}
}
}
Credentials you'll need
Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.
gmailOAuth2htmlcsstoimgApitrelloApiverifiEmailApi
Pro
For the full experience including quality scoring and batch install features for each workflow upgrade to Pro
About this workflow
Automate your entire beta tester onboarding process from signup to tracking with this comprehensive, production-ready n8n workflow.
Source: https://n8n.io/workflows/10470/ — original creator credit. Request a take-down →
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