Block Toxic Emails at the Point of Sign-Up.
Verify email deliverability in real time with a lightweight, synchronous HTTP request. Protect registration forms, checkouts, and backend pipelines.
Simple REST API for Real-Time Verification
Protect your registration forms, SaaS checkouts, and backend pipelines from disposable emails, typos, and toxic leads with a single lightweight HTTP request.
- ✓Real-Time Synchronous Validation: Designed for live sign-up forms, user onboarding, and webhook listeners.
- ✓Rich Diagnostic Attributes: Returns deliverability status, disposable domain flags, role-based accounts (info@), and free webmail detection.
- ✓Instant API Key & Free Credits: Start testing in seconds with 100 free credits upon sign-up — no credit card required.
- ✓Copy-Paste Snippets for 9+ Languages:Full documentation with implementation examples for Python, PHP, Node.js, Ruby, Go, Java, and more.
{
"email": "alex@company.com",
"result": "Safe",
"status_text": "Valid",
"substatus_text": null,
"is_disposable": false,
"is_role": false,
"is_free": false
}Built for High-Volume Production Workloads
Engineered for developers who demand clean JSON payloads, transparent rate limits, and zero fluff.
Disposable Email Detection
Instantly identify burner domains from services like Mailinator, 10MinuteMail, and GuerrillaMail. Block fake trial abuse and bot registrations before they pollute your database.
Role & Free-Mail Flags
Every JSON response flags generic role addresses (info@, support@) and free consumer providers (Gmail, Yahoo) to easily enforce B2B corporate domain rules.
Generous Rate Limits (600/min)
Enjoy high-throughput concurrency out of the box. Send up to 10 requests per second (600 requests/minute) on standard tiers without artificial throttling or latency penalties.
Standard Token Authentication
Authenticate via a standard HTTP header (Authorization: Token YOUR_API_KEY). Integrates with any language or backend framework in under 5 minutes.
Multiple API Keys & Teams
Generate independent API tokens for production, staging, and development environments. Share a centralized balance across your engineering team with free Team Accounts.
Credits Never Expire
Credits purchased for API calls never expire. Fund your account once and make live queries over weeks, months, or years without monthly recurring subscription fees.
Comprehensive JSON Response Schema
Every verification returns structured diagnostic attributes for automated logic handling.
| Parameter | Type | Description |
|---|---|---|
| result | String | Primary verdict: Safe, Invalid, Risky, or Unknown. |
| status_text | String | Detailed deliverability state: Valid, Invalid, Catch_all, or Unknown. |
| substatus_text | String | null | Specific error reason if rejected: e.g. Mailbox Not Found, Failed Syntax Check, or No Smtp. |
| is_disposable | Boolean | true if domain belongs to a temporary or burner email provider (e.g. Mailinator). |
| is_role | Boolean | true for role-based accounts (info@, support@, sales@). |
| is_free | Boolean | true for public consumer webmail providers like Gmail, Yahoo, or Outlook.com. |
Your Contact Lists Are Safe With Us
Enterprise-grade privacy standards applied to every verification job.
256-Bit SSL Encryption
All file uploads, API requests, and downloads are protected by modern end-to-end TLS encryption.
Auto-Wiped in 30 Days
Uploaded lists and validation results are permanently purged from our servers after 30 days. You can also delete them manually at any time.
Zero Data Sharing
We never sell, rent, or share your proprietary lead lists with third parties. Your data is strictly yours.
No Real Emails Sent
Our engine performs technical DNS and SMTP handshakes, terminating before delivery. Your contacts will never receive test messages.
Start Verifying in Under 60 Seconds
Create a free account, grab your API key, and make your first live validation call right now.