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Validate email addresses with APILayer API

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Important notice

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

1. Workflow Overview

Email Validation Workflow Using APILayer API This n8n workflow enables users to validate email addresses in real time using the APILayer Email Verification API. It's par...

Best for

  • Lead Generation automation workflows
  • beginner n8n builders looking for reusable templates

Tools used

n8n-nodes-base.manualtrigger, n8n-nodes-base.stickynote, n8n-nodes-base.set, n8n-nodes-base.httprequest

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Sarfaraz Muhammad Sajib.

Original n8n.io source

1.1 Workflow description

Title
Validate email addresses with APILayer API
Workflow name
Validate email addresses with APILayer API

📧 Email Validation Workflow Using APILayer API

This n8n workflow enables users to validate email addresses in real time using the APILayer Email Verification API. It's particularly useful for preventing invalid email submissions during lead generation, user registration, or newsletter sign-ups, ultimately improving data quality and reducing bounce rates.


⚙️ Step-by-Step Setup Instructions

  1. Trigger the Workflow Manually:

    • The workflow starts with the Manual Trigger node, allowing you to test it on demand from the n8n editor.
  2. Set Required Fields:

    • The Set Email & Access Key node allows you to enter:
      • email: The target email address to validate.
      • access_key: Your personal API key from apilayer.net.
  3. Make the API Call:

    • The HTTP Request node dynamically constructs the URL:
      https://apilayer.net/api/check?access_key={{ $json.access_key }}&email={{ $json.email }}
      
    • It sends a GET request to the APILayer endpoint and returns a detailed response about the email's validity.
  4. (Optional): You can add additional nodes to filter, store, or react to the results depending on your needs.


🔧 How to Customize

  • Replace the manual trigger with a webhook or schedule trigger to automate validations.
  • Dynamically map the email and access_key values from previous nodes or external data sources.
  • Add conditional logic to filter out invalid emails, log them into a database, or send alerts via Slack or Email.

💡 Use Case & Benefits

Email validation is crucial in maintaining a clean and functional mailing list. This workflow is especially valuable in:

  • Sign-up forms where real-time email checks prevent fake or disposable emails.
  • CRM systems to ensure user-entered emails are valid before saving them.
  • Marketing pipelines to minimize email bounce rates and increase campaign deliverability.

Using APILayer’s trusted validation service, you can verify whether an email exists, check if it’s a role-based address (like info@ or support@), and identify disposable email services—all with a simple workflow.


Keywords: email validation, n8n workflow, APILayer API, verify email, real-time email check, clean email list, reduce bounce rate, data accuracy, API integration, no-code automation

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 - When clicking ‘Execute workflow’

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

Block 2 - Sticky Note

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

Block 3 - Set Email & Access Key

Type / Role
n8n-nodes-base.set - set
Config choices
Version 3.4

Block 4 - Make Request to APILayer

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

3. Summary Table

Workflow Validate email addresses with APILayer API
Complexity beginner
Nodes 4
Categories Lead Generation
Author Sarfaraz Muhammad Sajib
Published 21 Jul 2025

4. Reproducing the Workflow from Scratch

  1. 1. Download the workflow JSON

    Use the JSON export at /data/workflows/6230/6230.json as the source template for this automation.

  2. 2. Import the template into n8n

    Open n8n, import the downloaded JSON, and review each node before activating the workflow.

  3. 3. Configure credentials and variables

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

  4. 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. 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.

Frequently asked questions

What does Validate email addresses with APILayer API do?

Email Validation Workflow Using APILayer API This n8n workflow enables users to validate email addresses in real time using the APILayer Email Verification API. It's par...

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 use case.