Email Verification API
That Actually Works
Validate email addresses in under 200ms. AI pattern detection catches disposable, role-based & fake emails that SMTP checks miss. Pay-per-use, no subscription.
No credit card required · Instant API key · Credits never expire
99% Accuracy
Industry-leading precision powered by multi-layer AI validation that outperforms legacy rule-based tools.
< 200ms Response
Real-time email verification so you never slow down your sign-up flow or cold outreach pipeline.
AI Spam Detection
Catches disposable, role-based, and honeypot addresses instantly — before they corrupt your list.
Pay Per Use
No monthly commitments. Buy credits once, use them whenever you need. Scale up or down freely.
How Email Verification Works
Four validation layers run in parallel — results delivered in under 200ms.
Send an API Request
POST your email address with your API key to our endpoint. Works in any language — curl, Python, Node.js, PHP.
Multi-Layer Validation
We run syntax checks, MX record lookup, SMTP handshake, disposable domain detection, and AI risk scoring in parallel.
AI Pattern Analysis
Our AI model detects typo patterns, role-based accounts (info@, admin@), and previously-unseen disposable domains.
Get a Confidence Score
Receive a JSON response with a 0–1 validity score and detailed flags so you can make nuanced filtering decisions.
Who Uses Email Verification?
From cold email campaigns to SaaS signups — clean email data drives better results in every channel.
Cold Email Marketers
Reduce bounce rates below 2% and protect your sender reputation. Verify your outreach lists before every campaign.
Learn more →SaaS Signup Validation
Block fake registrations and disposable emails at signup. Keep your user base clean and your free trial abuse minimal.
Learn more →Lead List Cleaning
Scrub purchased or scraped lead lists before import. Eliminate up to 30% dead weight from typical B2B databases.
Learn more →E-commerce Fraud Prevention
Detect disposable and synthetic email patterns used by fraudsters at checkout or account creation, before any damage.
Learn more →How We Compare to the Competition
See full comparisons: vs ZeroBounce · vs NeverBounce · vs Hunter.io
| Feature | EmailVerify | Industry Average |
|---|---|---|
| Accuracy | 99%+ | ~95% |
| Pricing model | Pay per use | Monthly plans |
| AI Detection | ✓ Advanced | Partial |
| Response Time | < 200ms | 500–2000ms |
| Disposable Detection | ✓ 50k+ domains | Basic |
| Free Tier | 100 verifications | None or very limited |
| Credits expiry | Never expire | Monthly reset |
Simple, Transparent Pricing
Buy credits once. Use them whenever you need. No subscriptions, no surprises.
100 verifications
- 100 email verifications
- Full API access
- JSON response
- Basic support
1,000 verifications
- 1,000 email verifications
- Full API access
- JSON response + details
- Priority support
One API call. Instant results.
Integrate email validation in minutes with any language or framework.
curl -X POST https://api.emailverify.io/verify \
-H "Content-Type: application/json" \
-d '{"email": "user@example.com", "api_key": "ev_..."}'
# Response
{
"valid": true,
"score": 0.97,
"details": {
"format": true,
"mx_record": true,
"disposable": false,
"role_based": false,
"ai_risk_score": 0.03
}
}Frequently Asked Questions About Email Verification
What is email verification?
Email verification is the process of checking whether an email address is valid, deliverable, and safe to use. It combines syntax validation, MX record lookup, SMTP handshake, disposable domain detection, and AI-based risk scoring to give you a confidence score for each address.
How does an email verification API work?
An email verification API accepts an email address as input and performs multiple real-time checks: format validation (RFC-5322), DNS/MX record lookup to confirm the domain accepts mail, an SMTP handshake to verify the mailbox exists, and AI pattern analysis to flag disposable, role-based, or fraudulent addresses. The entire process completes in under 200ms.
What is a good email verification accuracy rate?
Industry-standard accuracy hovers around 95–97%. EmailVerify achieves 99%+ accuracy by combining traditional SMTP checks with a continuously-trained AI model that catches new disposable domains and typo patterns before they spread across block lists.
What are disposable email addresses and why are they a problem?
Disposable (temporary) email addresses are one-time inboxes created via services like Mailinator, TempMail, or Guerrilla Mail. They're used to bypass signups, abuse free trials, or submit fake leads. EmailVerify maintains a live database of 50,000+ disposable domains updated in real time.
What is an email bounce rate and how does verification help?
Bounce rate is the percentage of emails that cannot be delivered. A rate above 2% flags your domain as a spam source, destroying deliverability. Email verification eliminates hard bounces (invalid addresses) before sending, keeping your bounce rate under 0.5%.
Can I verify email addresses in bulk?
Yes. EmailVerify's API supports bulk verification — send thousands of addresses via repeated API calls or a batch endpoint. Each verification consumes one credit. There are no rate-limit penalties on Pro plans, and our infrastructure handles 500+ requests per second.
What is an MX record and why does it matter for email verification?
An MX (Mail Exchange) record is a DNS entry that tells the internet which servers accept email for a domain. If a domain has no MX record, email delivery is impossible. We check MX records in real time as part of every verification, catching domains that look valid but cannot receive mail.
How does AI-powered email verification differ from traditional methods?
Traditional email verification relies on static block lists and SMTP checks. AI-powered verification adds pattern recognition — detecting typos (gmal.com, yaho.com), newly-registered disposable domains not yet on block lists, and behavioral signals that indicate synthetic or fraudulent addresses.
Is email verification GDPR compliant?
Yes. EmailVerify processes only the email address you submit and returns verification metadata. We do not store verified email addresses beyond the verification transaction, do not build profiles, and our infrastructure is EU-hosted. Processing is compliant with GDPR Article 6(1)(f) legitimate interest.
How much does email verification cost?
EmailVerify uses a pay-per-use model: 100 free verifications at signup, then from €5 for 1,000 verifications (€0.005/email) up to €50 for 12,000 verifications (€0.0042/email). There are no monthly subscriptions or minimum commitments — credits never expire.
Want the technical deep-dive? Read our accuracy guide →