Email Validator API
Validate email addresses instantly. Detect fake, disposable and invalid emails.
Free email validation API. Check if an email address is valid, detect disposable emails (Mailinator, Guerrilla Mail, 800+ domains), verify domain format and get a confidence score. No external API calls — 100% server-side, under 10ms response time.
How it works
Three steps. No complex setup.
Send your request
Make a POST with the data you want to analyze. Include your API key in the Authorization header.
We process server-side
Our engine validates, analyzes and enriches the data in under 200ms. No external APIs, no network latency.
Receive the result
Typed JSON with all documented fields. Clear errors if something fails. Production ready.
Who is it for?
Response example
Real input and output. What you send and what you get back.
// Input
{
"email": "[email protected]"
}// Output
{
"email": "[email protected]",
"valid": true,
"format_ok": true,
"domain": "jsnh.com",
"local_part": "jago",
"disposable": false,
"trusted": false,
"mx_likely": true,
"confidence": "medium",
"reason": null,
"suggestions": []
}Try it now
// live demo — no account needed to try
Playground
Integrate into your project
Copy and paste. Replace YOUR_API_KEY with your real key.
curl -X POST https://jsnhengine.com/api/trpc/emailValidator.validate \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_API_KEY" \
-d '{"json": {"email":"[email protected]"}}'Why choose JSNH Engine Lab
Low latency
Responses in under 200ms
Secure authentication
API keys with per-plan rate limiting
Usage tracking
Every request logged with metrics
Production ready
Input validation and typed errors
Frequently asked questions
Everything you need to know before integrating.
Other modules
Expand your integration with more APIs from the catalogue.
Phone Validator API
Validate phone numbers from any country. Detect carrier, line type and E.164 format.
1 token / call →
URL Checker API
Verify URL accessibility, detect redirects, and extract SEO metadata instantly.
2 tokens / call →
IP Lookup API
Instant IP geolocation: country, city, timezone, and connection type detection.
1 token / call →
// production ready
Start using Email Validator API
Sign up free and get 1,000 tokens to start. No credit card. No complex setup.