Email Verification API - Real-Time & Bulk | BounceZero
REST API - JSON - No SDK Required

Email Verification
API Built for Developers

Verify any email address in real-time via a single API call. 65+ signals, 99.8% accuracy, JSON response in milliseconds.

100 free credits/month No credit card required Response in <300ms
curl
# Single Email Verification
curl -X POST \
https://bouncezero.io/api/v1/verify \
-H "Authorization: Bearer YOUR_API_KEY" \
-d '{"email":"[email protected]"}'
# Response
{
"email": "[email protected]",
"classification": "verified",
"score": 97,
"is_deliverable": true,
"smtp_check": true,
"catch_all": false
}

Everything your app needs

Real-Time Verification

Single email check in <300ms. Perfect for sign-up form validation.

Bulk Processing

Upload CSV or call batch endpoint. Process 100K+ emails overnight.

65+ Verification Signals

Syntax, DNS, MX, SMTP, catch-all, disposable, spam trap, role-based.

Simple REST API

Standard HTTP + JSON. No SDK required. Works with any language.

Webhooks

Get notified when bulk jobs complete. No polling required.

Credits Never Expire

Buy credits once, use whenever. No monthly commitments.

Simple, credit-based pricing

Start free. Scale as you grow. Credits never expire.

Free
0
100/mo credits
Forever free
Starter
$6
2,000 credits
$0.003/email
Growth
$15
5,000 credits
$0.003/email
Professional
$30
10,000 credits
$0.003/email
Get Your Free API Key

No credit card - Setup in 60 seconds - 100 free credits included