EmailVerify.io API — Email Verification, Bulk Validation & Email Finder
One email API for everything email management: validate addresses in real time, clean entire lists in bulk, and find professional emails by name and domain. Built for developers, SaaS platforms, CRMs, and marketing tools — with a single free API key, JSON responses, and official SDKs.
Choose the Right Email API for the Job
Each API has a dedicated page with full documentation, code samples, and use cases.
Email Verification API
Validate a single address in real time — syntax, MX, blacklist, and SMTP mailbox checks returning a clean status and sub_status.
- ✓ Real-time single verification
- ✓ Disposable & catch-all detection
- ✓ SMTP-level mailbox check
Bulk Email Verification API
Validate up to 5,000 emails per request. Submit a batch, get a task_id, and retrieve categorized results asynchronously.
- ✓ Up to 5,000 emails per batch
- ✓ Async processing with progress
- ✓ Exportable, categorized results
Email Finder API
Find a verified professional email from a name and company domain. Tests 25 combinations and confirms each with SMTP.
- ✓ Name + domain input
- ✓ 25 smart combinations
- ✓ Verified found / not_found result
Build Faster With Our Developer-Ready SDKs & API Tooling
Developer Tools, SDKs & Integration Packages
Everything you need to plug EmailVerify.io into your stack without stress. Explore our official SDKs, sample projects, and lightweight client libraries built for JavaScript, Node, Python, PHP, Ruby, Golang, and .NET, C#. Each package is optimized for fast setup, clear responses, and smooth integration workflows, so your team can ship features quicker and keep things running reliably at scale.
Get Free API KeyWhy Developers & Businesses Choose Our Email Verification API
Our API is designed to solve real-world problems faced by SaaS, CRM platforms, marketing agencies, ecommerce websites, and enterprise systems that rely on clean, valid, and deliverable email lists.
Real-time Verification
Sub-second responses for instant email verification and processing millions of validations per day.
Detect Invalid & Risky Emails
Identify fake, temporary, disposable, spam-trap, and risky emails to protect your list quality.
Block Bots & Fake Signups
Role-based, catch-all, and disposable detection to prevent fraudulent signups and automated bots.
Improve Deliverability
Reduce bounce rates and enhance your email deliverability for better engagement.
Fully RESTful API
JSON-based endpoints built for scale with millions of validations per day, easy to integrate in any stack.
Free API Key
Start instantly with no credit card required and explore the API for free.
Get Started in Minutes
Start using our APIs with 100 free verification credits, no credit card required
Create Free Account
Sign up with your email and get instant access to your dashboard and API credentials.
Get Your API Key
Access your unique API key from the dashboard and start making requests immediately.
Start Verifying
Integrate our API into your app and start verifying emails with your 100 free credits.
Ready to integrate our APIs?
Get 100 free email verification credits and 10 email finder queries when you sign up today. All credits replenish monthly!
EmailVerify.io vs NeverBounce vs ZeroBounce Price Comparison
Start Strong: $20/month for 30,000 Verifications
That's 10X more emails than others per dollar
Price Comparison
30,000 credits Verifications / month
60,000 credits Verifications / month
120,000 credits Verifications / month
180,000 credits Verifications / month
| Verifications / month | Emailverify.io | NeverBounce | ZeroBounce |
|---|---|---|---|
| 30,000 credits | $20 | $150 | $210 |
| 60,000 credits | $40 | $300 | $420 |
| 120,000 credits | $80 | $480 | $468 |
| 180,000 credits | $115 | $720 | $702 |
Frequently Asked Questions
What is an email verification API?
An email verification API allows you to programmatically check whether an email address is valid, deliverable, and safe to send. It integrates directly into your application or backend so you can validate addresses in real time during signups, form submissions, CRM imports, or automated workflows. EmailVerify.io’s API returns structured JSON responses, letting developers instantly determine if an email is valid, invalid, risky, disposable, catch-all, or role-based—ensuring cleaner lists and higher deliverability.
How does EmailVerify.io check emails?
Our API performs multi-layer validation including syntax checks, DNS and MX record verification, SMTP mailbox checks, disposable email detection, catch-all domain identification, and spam trap recognition to ensure email deliverability.
How accurate is EmailVerify.io?
EmailVerify.io provides up to 99% accuracy by combining multiple verification layers including DNS checks, SMTP-level mailbox testing, temporary email detection, spam-trap analysis, and domain-level behavior monitoring. Our infrastructure uses distributed verification nodes to deliver fast, consistent, and highly reliable results—ideal for SaaS platforms, enterprise workloads, and large-volume marketing operations.
Does the API detect disposable or temporary emails?
Yes. EmailVerify.io maintains a constantly updated dataset of disposable and temporary email providers. Whenever an email is checked, the API compares the domain against our real-time disposable email index, flags temporary inboxes, and classifies them as risky or unsuitable for long-term communication. This helps businesses prevent fake signups, fraud, and high bounce rates.
Is EmailVerify.io suitable for developers?
Absolutely. Our RESTful API uses JSON responses, clear status flags, and predictable error codes. You can validate single emails, batch requests, or bulk lists. It works with any backend or frontend environment capable of making HTTP requests. SDKs, code examples, and Postman collections make integration simple and fast for developers in any language.
Can I test the API for free?
Yes, you can generate a free API key and immediately test the service without adding a credit card. You can perform real validations, explore API endpoints, integrate with your application, and measure performance before upgrading to a paid plan.