API

One endpoint. Your name on it.

Send one address, get back Inbox, Caution or Remove, in real time. Run it in your own stack or wrap it in your own brand and sell it as yours.

The API

One call, one decision.

No SDK to wrestle, no dashboard to babysit. Point your form or app at one endpoint, pass one email, and branch on the answer.

One call per address

Pass a single address and get back a plain verdict with the reason on it, as structured data you can act on.

Verify at signup, in real time

Check the address the second someone types it, so junk never enters the list in the first place. No mopping up later.

Fits the tools you run

Drop the call into n8n, Make or Zapier and gate any signup, form or CRM add on the verdict. No engineer required.

The request
# one address in POST /verify { "email": "new.signup@example.com" }
What comes back
# one decision out { "email": "new.signup@example.com", "verdict": "Inbox", "reason": "mailbox reachable, no risk signals" }

Illustrative shape only. Inbox goes to the list, Caution goes to review, Remove never makes it in.

White-label

Your brand on our engine.

Resellers put their own name on Listgevity and on the API URLs. Your customers see you, not us. You set your own retail and keep the margin. We run the engine, you run the relationship. The same Inbox, Caution and Remove verdicts your customers rely on, delivered under your brand end to end.

Your name, your URLsThe product and the endpoints carry your brand, not ours.
Your price, your marginYou decide what to charge and keep the difference.
One engine behind itThe verdicts stay the same whoever the customer thinks they buy from.

Pricing is custom and private. A reseller deal is built around your volume, not a public rate card. A simple flat fee, agreed once, so your margin is yours to plan around. [CONFIRM white-label fee]

Talk white-label
Done for you

Or let us run it for you.

Not everyone wants to wire anything. There is a managed tier where we run the hygiene for you and hand back a clean list with the verdicts on it. You get the same Inbox, Caution and Remove, without touching an endpoint.

Contact us about done-for-you

One endpoint. Your name on it.

Send one address, get back Inbox, Caution or Remove, in real time. Run it in your stack or wrap it in your brand.

Check my list →
First 1,000 free. No card.