Verify emails with enterprise-grade precision

Complete email validation including DNS checks, MX record verification, inbox testing, catch-all detection, and syntax validation. Reduce bounce rates by up to 99%.

Upload your email list for bulk verificationCSV, TXT, Excel • DNS + MX + Inbox validationMaximum files to upload: 1
Maximum file size to upload: 10 MB

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Complete email validation in one powerful API

Our comprehensive validation engine checks every aspect of an email address to ensure maximum deliverability and clean data.
  • DNS & MX Record Validation
    Verify domain existence and mail server configuration. Check if the domain has proper MX records and can receive emails.
  • Inbox Testing
    Test if emails can actually be delivered to the recipient's inbox. Detect temporary blocks and spam folder issues.
  • Catch-All Detection
    Identify catch-all domains that accept any email address. Prevent false positives and improve validation accuracy.
  • Syntax Validation
    Check email format compliance with RFC standards. Detect typos, invalid characters, and malformed addresses.
  • Real-time Processing
    Get instant validation results with our high-performance API. Process thousands of emails in seconds, not minutes.
  • Detailed Analytics
    Comprehensive reports showing validation results, bounce rates, and deliverability metrics to optimize your campaigns.

Powerful API for developers

Integrate our email validation service into your applications with our simple, fast, and reliable REST API.

Simple Integration

Our REST API is designed for developers who need reliable email validation. Get comprehensive validation results in milliseconds with our enterprise-grade infrastructure.

Key Features:

  • Real-time validation with sub-second response times
  • Comprehensive validation including DNS, MX, and inbox testing
  • JSON responses with detailed status codes and descriptions
  • High-volume processing with rate limiting and quotas
  • RESTful design with clear documentation and examples
View Documentation Get API Key

Example Responses

DeliverableValid email address
{
  "valid_syntax": 1,
  "valid_dns": 1,
  "has_mailbox": 1,
  "is_catch_all": 0,
  "is_disposable": 0,
  "is_role": 0,
  "status": "deliverable",
  "description": "This email address is valid and can receive emails reliably.",
  "validation_completed": true
}
RiskyCatch-all domain detected
{
  "valid_syntax": 1,
  "valid_dns": 1,
  "has_mailbox": 1,
  "is_catch_all": 1,
  "is_disposable": 0,
  "is_role": 0,
  "status": "risky",
  "description": "This email address is valid but may have deliverability issues.",
  "validation_completed": true
}
UndeliverableInvalid email address
{
  "valid_syntax": 0,
  "valid_dns": 0,
  "has_mailbox": 0,
  "is_catch_all": 0,
  "is_disposable": 0,
  "is_role": 0,
  "status": "undeliverable",
  "description": "This email address cannot receive emails or has validation issues.",
  "validation_completed": true
}

Supercharge your AI development workflow

Integrate email validation directly into your favorite AI-powered code editors with our Model Context Protocol (MCP) server.

AI-Powered Development

Our MCP server brings enterprise-grade email validation directly into your AI development environment. Let Cursor and Windsurf validate emails in real-time as you code, making your applications more robust and reliable.

Supported Platforms:

Cursor

AI-powered code editor

Windsurf

AI-native IDE

Available Tools:

validate_email

Validate single email addresses with comprehensive checks

bulk_validate_emails

Upload CSV, TXT, XLSX, XLS files for bulk validation

get_task_status

Track progress of bulk validation tasks

get_account_info

View account details and usage information

Key Benefits:

  • Real-time email validation as you code
  • Bulk file processing with progress tracking
  • Seamless integration with AI assistants
  • Enterprise-grade validation accuracy
View on GitHub

Example Usage

MCP Configuration
{
  "mcpServers": {
    "email-checker": {
      "command": "node",
      "args": ["mcp-server.js"],
      "env": {
        "API_KEY": "your-api-key"
      }
    }
  }
}
AI Assistant Usage
// Single email validation:
"Validate user@example.com"

// Bulk validation:
"Upload emails.csv for bulk validation"

// Check task progress:
"Check status of task abc-123-def"

// Available tools:
• validate_email
• bulk_validate_emails  
• get_task_status
• get_account_info