Pricing

Pay for volume.
Never for features.

Every plan — including Free — runs all 11 validation layers, bulk CSV, and quality scoring. You only pay more when you check more emails.

Free
$0

For ideas, prototypes, and first signups.

1,000checks/mo
10 req/min
Starter
$9/mo

For side projects and small sites.

10,000checks/mo
60 req/min
Popular
Pro
$29/mo

Most teams land here.

50,000checks/mo
200 req/min
Business
$79/mo

For scale-ups with real volume.

200,000checks/mo
500 req/min
Enterprise
$199/mo

Growing teams & custom SLAs.

500,000checks/mo
1,000 req/min
Cost calculator

How much does email validation actually cost?

Pick your monthly volume — all three prices are monthly subscriptions.

50,000emails / mo
MailSentry
Pro plan
$29/mo
$0.0006 per email
Pick Pro
NeverBounce
Growth plan
$99/mo
$0.0020 per email
Save $70/mo with MailSentry
ZeroBounce
ONE plan
$379/mo
$0.0076 per email
Save $350/mo with MailSentry

All prices are monthly subscriptions from published pricing pages (April 2026). NeverBounce: Growth plan. ZeroBounce: ZeroBounce ONE plan.

Full comparison

What's in every plan.

Every row, every plan. No hidden tiers, no surprises on the bill.

FeatureFreeStarterProBusinessEnterprise
Monthly checks included1,00010,00050,000200,000500,000
Rate limit10/min60/min200/min500/min1,000/min
All 11 validation layers
Quality scoring (0–100)
Typo correction
Bulk CSV validation
Webhooks
API keys13510Unlimited
Usage analytics
Team seats11310Unlimited
SupportCommunityEmailPriority emailDedicatedDedicated + SLA
Accuracy guarantee

If more than 3% of emails we mark “valid” bounce, we credit your account.

Applies to all paid plans. Emails must be sent within 30 days of validation. Credits are issued within 48 hours of a valid claim — no questions, no forms, no sales call.

No-Surprise Billing Promise

Credits never expire

Extra credits you purchase stay in your account forever. No “use it or lose it” deadlines.

No overage charges

Hit your limit? Requests pause with a 402 status code. We never bill you extra without your action.

Every feature on every plan

All 11 validation layers, bulk CSV, quality scoring, and typo correction — included on Free.

FAQ

Frequently asked questions

Every call to /api/v1/verify counts as one check. Invalid syntax, disposable domains, and failed MX lookups all count the same — there are no premium or discounted check types.
GDPR committed
3% bounce guarantee
Every feature, every plan

Stop bad emails. Pay 80% less.

1,000 free checks/moNo credit card≤3% bounce guarantee