Extract business card data & generate follow-ups with Google Vision OCR & GPT-4 Mini

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

This n8n template helps you turn business cards into qualified sales opportunities — instantly. No more lost leads after events or networking meetups. Just send a business card photo via Telegram, ...

Best for

Lead Generation automation workflows
AI Chatbot automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.telegramtrigger, n8n-nodes-base.httprequest, @n8n/n8n-nodes-langchain.agent, @n8n/n8n-nodes-langchain.lmchatopenai, n8n-nodes-base.gmail, n8n-nodes-base.if, n8n-nodes-base.googlesheets, n8n-nodes-base.stickynote

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Aditya Malur.

Original n8n.io source

1.1 Workflow description

Title: Extract business card data & generate follow-ups with Google Vision OCR & GPT-4 Mini
Workflow name: Extract business card data & generate follow-ups with Google Vision OCR & GPT-4 Mini

This n8n template helps you turn business cards into qualified sales opportunities — instantly.

No more lost leads after events or networking meetups. Just send a business card photo via Telegram, and let AI handle the rest.

The workflow extracts details (name, company, role, email, phone) using Google Vision OCR, analyzes context with OpenAI, and then generates personalized WhatsApp or email messages to help you follow up faster.

Use Cases

Capture leads instantly from events or meetups.

Auto-analyze business card data into structured CRM entries.

Send hyper-personalized WhatsApp messages or emails within minutes.

Ideal for founders, marketers, and business development teams.

How it Works

Trigger: Send a photo of a business card via Telegram.

Extract: Google Vision OCR reads and extracts all text from the image.

Process: The extracted text is sent to an AI agent (OpenAI GPT-4.1-mini) for:

Contact parsing (name, company, role, email, phone)

Business/industry inference

AI-generated personalized follow-up messages

Output: The system returns structured JSON containing:

Email subject & body

WhatsApp draft message

Fit score, opportunities, and next action steps

How to Use

Import the JSON template into n8n.

Add your Telegram Bot Token to the “Telegram Trigger” node.

Add your Google Cloud Vision API key in the HTTP Request node.

Add your OpenAI credentials in the “OpenAI Chat Model” node.

(Optional) Connect the output to Google Sheets, Airtable, or your CRM.

Run the workflow — take a photo of a business card and watch the magic happen!

Requirements

Telegram Bot for image input

Google Vision API Key

OpenAI API Key

(Optional) Integration with CRM or WhatsApp API

Customization Ideas

Replace Telegram with Email or WhatsApp triggers.

Push qualified leads directly into HubSpot or Notion.

Automate multi-step sequences based on AI fit scores.

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Telegram Trigger

Type / Role: n8n-nodes-base.telegramTrigger - telegramTrigger
Config choices: Version 1.2

Block 2 - HTTP Request

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 3 - AI Agent

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 2.2

Block 4 - OpenAI Chat Model

Type / Role: @n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices: Version 1.2

Block 5 - Send a message

Type / Role: n8n-nodes-base.gmail - gmail
Config choices: Version 2.1

Block 6 - If

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.2

Block 7 - Append row in sheet

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.7

Block 8 - Sticky Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 9 - Sticky Note1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 10 - Sticky Note2

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 11 - Convert Image to Base64

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 12 - Sticky Note3

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 13 - Sticky Note4

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 14 - Extract Raw Text)

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 15 - Sticky Note5

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 16 - Clean AI Output

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 17 - Sticky Note6

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 18 - Sticky Note7

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 19 - Sticky Note8

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 20 - Sticky Note9

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 21 - Sticky Note11

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

3. Summary Table

Workflow	Extract business card data & generate follow-ups with Google Vision OCR & GPT-4 Mini
Complexity	advanced
Nodes	21
Categories	Lead Generation, AI Chatbot
Author	Aditya Malur
Published	14 Oct 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/9643/9643.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Lead Generation workflows AI Chatbot workflows

Frequently asked questions

What does Extract business card data & generate follow-ups with Google Vision OCR & GPT-4 Mini do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Lead Generation, AI Chatbot use case.

Aditya Malur

3 workflows

Nodes

n8n-nodes-base.telegramtrigger n8n-nodes-base.httprequest @n8n/n8n-nodes-langchain.agent @n8n/n8n-nodes-langchain.lmchatopenai n8n-nodes-base.gmail n8n-nodes-base.if n8n-nodes-base.googlesheets n8n-nodes-base.stickynote

Complexity

advanced

Published 14 Oct 2025

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/9643/9643.json

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Extract business card data & generate follow-ups with Google Vision OCR & GPT-4 Mini

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Use Cases

How it Works

How to Use

Requirements

Customization Ideas

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Telegram Trigger

Block 2 - HTTP Request

Block 3 - AI Agent

Block 4 - OpenAI Chat Model

Block 5 - Send a message

Block 6 - If

Block 7 - Append row in sheet

Block 8 - Sticky Note

Block 9 - Sticky Note1

Block 10 - Sticky Note2

Block 11 - Convert Image to Base64

Block 12 - Sticky Note3

Block 13 - Sticky Note4

Block 14 - Extract Raw Text)

Block 15 - Sticky Note5

Block 16 - Clean AI Output

Block 17 - Sticky Note6

Block 18 - Sticky Note7

Block 19 - Sticky Note8

Block 20 - Sticky Note9

Block 21 - Sticky Note11

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions