Popular API
Email Validation API
Validate email addresses with comprehensive syntax, domain, and mailbox verification. Reduce bounces, improve deliverability, and protect your platform from spam.
API Endpoint
https://emailvalidation.cleariflow.com/v1/?api_key=YOUR_API_KEY&email=john.doe@example.com
Try it now
Test the API with live data
Need inspiration? Try:
API Benefits
99.9% Accuracy
Industry-leading email validation with comprehensive syntax, domain, and mailbox verification.
Fraud Protection
Detect disposable emails, role accounts, and catch-all domains to protect your platform.
Rich Data Points
Get detailed validation results including deliverability status, quality score, and format flags.
Real-time Verification
Validate emails instantly with SMTP verification and mailbox existence checking.
Risk Assessment
Comprehensive risk scoring to identify potentially harmful or low-quality email addresses.
Lightning Fast
Sub-200ms response times with global infrastructure and intelligent caching.
Key Features
Syntax validation and formatting
Domain and MX record verification
SMTP mailbox verification
Disposable email detection
Role account identification
Free email provider detection
Catch-all domain detection
Deliverability status checking
Quality score assessment
Auto-correction suggestions
International domain support
JSON response format
Quick Start Guide
1. Get your API key
Sign up for free and get instant access to your API key.
2. Make your first request
curl -X GET "https://emailvalidation.cleariflow.com/v1/?api_key=YOUR_API_KEY&email=john.doe@example.com"
3. Handle the response
{
"email": "john.doe@example.com",
"autocorrect": "",
"deliverability": "DELIVERABLE",
"quality_score": 0.95,
"is_valid_format": {
"value": true,
"text": "TRUE"
},
"is_free_email": {
"value": false,
"text": "FALSE"
},
"is_disposable_email": {
"value": false,
"text": "FALSE"
},
"is_role_email": {
"value": false,
"text": "FALSE"
},
"is_catchall_email": {
"value": false,
"text": "FALSE"
},
"is_mx_found": {
"value": true,
"text": "TRUE"
},
"is_smtp_valid": {
"value": true,
"text": "TRUE"
}
}