An honest verdict, never a fake green light.
Real-time and batch verification, built to drop into your stack.
No card · 100 free · GDPR
AI — Three statuses, one JSON shape, real confidence scores. Unknown costs you nothing — you only pay for answers.
Stop the bad addresses at the source.
You don't want a dashboard — you want an endpoint. Most verification APIs are slow, sparsely documented, rate-limited at the worst moment, or quietly return a green light when they actually couldn't determine an answer. None of that survives a code review.
- Here's the fix. EmailListChecker ships a clean REST API for both single real-time checks and large batch jobs, with predictable JSON, webhooks for async results, and SDK-friendly auth. Sub-second single lookups, honest verdicts with confidence scores, and a 99.9% SLA — documented well enough that you integrate it in an afternoon.
Outcomes, not just a status column.
The point isn't a green checkmark — it's what changes for your team when the data is finally trustworthy.
One REST API for both real-time single checks and large batch jobs
Honest JSON: a real verdict and confidence, never a fake green light
Webhooks for async batch results — no polling loops to maintain
Bearer-token auth, clear docs, and a 99.9% uptime SLA you can build on
Everything developers & apis needs.
The specific tools this job calls for — all in one verifier, all talking to the same AI.
One REST API, real-time + batch
A single endpoint for one check or a million, with predictable latency.
SDKs, webhooks, rate limits
Documented, production-ready clients and callbacks for every language.
Honest verdicts
SAFE / RISKY / INVALID / UNKNOWN with reasons — and you only pay for answers.
Built to pass procurement.
The controls, scale and support that security, legal and engineering teams require — without the enterprise-software tax.
Security & compliance
SOC 2 Type II, GDPR and a signed DPA. Encryption in transit and at rest, deletion on request, and lists that are never sold or shared.
99.9% uptime SLA
A written availability SLA, redundant infrastructure and public status — a verification API the rest of your stack can depend on.
Dedicated support
Priority support, guided onboarding and a named success contact who helps you interpret results and tune your verification strategy.
Scale & throughput
Millions of addresses per job, real-time and batch on one API, with SDKs, webhooks, dedup and volume pricing that improves as you grow.
Governance & access
Team seats with role-based access and an audit trail, plus SSO / SAML for centrally-managed enterprise accounts.
Commercial that fits
Credits that never expire, custom contracts, invoicing, MSAs and security reviews — built for procurement, not a credit-card wall.
Good to know.
Ready for data you can trust?
Start with 100 free verifications — no credit card. See exactly what clean looks like for your list before you spend a cent.