✉️ Email Quality Assurance

Email Validation API
Free Developer API

Validate email addresses with comprehensive syntax, domain, and deliverability checks. Reduce bounce rates, prevent fraud, and improve email campaign quality.

Get Started Free View Documentation

100 requests/month free • No credit card required

How It Works

Send Email Address

POST the email address you want to validate and verify

Multi-Layer Validation

Our system checks syntax, domain validity, and mailbox deliverability

Get Validation Result

Receive detailed validation status, risk score, and quality metrics

Key Features

✅

Syntax Validation

RFC 5322 compliant email syntax checking including local part and domain validation.

🌐

DNS & MX Verification

Verify that the email domain exists and has valid MX records configured for receiving mail.

🚫

Disposable Detection

Detect throwaway email addresses from 10,000+ known disposable email providers.

📋

Role Account Detection

Identify role-based emails (info@, admin@, support@) that often have lower engagement.

🔍

Typo Suggestion

Detect common domain typos (gmial.com → gmail.com) and suggest corrections.

⚡

Bulk Validation

Validate thousands of emails in a single request with parallel processing for speed.

Use Cases

📧

Email Marketing

Clean your mailing lists before sending campaigns to reduce bounce rates and protect sender reputation.

📝

Registration Forms

Validate emails in real-time during user registration to prevent fake accounts and typos.

🛡️

Fraud Prevention

Block disposable and suspicious email addresses to reduce fake signups and payment fraud.

📊

Data Quality

Audit your CRM database to identify invalid, outdated, or risky email addresses for cleanup.

Pricing

Free

€0/month

✓ 100 requests/month
✓ All features
✓ API documentation
✓ Email support

Get Started

Pro

€9/month

✓ 10,000 API calls/month
✓ All 5 APIs included
✓ Priority support
✓ 99.9% SLA

Choose Pro

Business

€29/month

✓ 50,000 API calls/month
✓ Dedicated support
✓ Custom rate limits
✓ SLA guarantee

Choose Business

Quick Start

curl -s "{https://api.toolcenter.dev/v1/[email protected]}" \
  -H "Authorization: Bearer YOUR_API_KEY"

const response = await fetch(
  'https://api.toolcenter.dev/v1/[email protected]',
  {headers: {'Authorization': 'Bearer YOUR_API_KEY'}}
);
const data = await response.json();
console.log(data);

import requests

response = requests.get(
    'https://api.toolcenter.dev/v1/[email protected]',
    headers={"Authorization": "Bearer YOUR_API_KEY"}
)
print(response.json())

Frequently Asked Questions

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Email Validation API Free Developer API