Kleber pricing: email verification API
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33% complete: 2 of the 6 key fields we checkSee the 6 fields
$0.00per 1,000 emailsWe haven't run Kleber through our email verification API benchmark yet.This plan is free. We rank 3,753 plans for email verification APIs by price. Half the plans cost $1.98 per 1,000 emails or less.treg's top-up from $10 is the cheapest paid plan per 1,000 emails: $0.00 on average. treg asks one provider after another until one answers. You pay $68.365 per 1,000 emails when no provider answers.Disify's $9 monthly plan (/
Plan: Free credit one of Kleber's 3 plans
Call: Docs behind sign-up Kleber's only call
API: Email verification API one of Kleber's 2 APIs
About this item
- Live. Kleber checks the email when you call the API.
- 2 of the 6 key fields we check. Address, Deliverability.
- Nothing to pay. You get $50 of credit. Calls stop once your credit runs out.
- One call. Kleber shows the call's docs once you sign up. The call returns whether the address takes mail.
- Who can get it: with conditions. Keep data: with conditions. Use data: with conditions.
Kleber: email verification API alternatives
Kleber alternatives: every email verification API provider ranked
We list other providers' plans closest to this plan in price per 1,000 emails. Each plan in the table gives live data.
| This planKleber, free | MailTester Ninja, free, No token | Enrich.so, free, POST /email-validation | GetProspect, free, POST /v2/email-verifications | Sealch, free, POST /api/verify | HiProspect, free | |
|---|---|---|---|---|---|---|
| $ per 1,000 emails | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 |
| Completeness | 33% | 50% | 50% | 50% | 17% | 33% |
| Billing | free | free | free | free | free | free |
| Pay | $0 | $0 | $0 | $0 | $0 | £0 |
| Enough for | not published | 300 calls a month | 100 calls, once | 100 results a month | 200 calls, once | 10 results |
| Freshness | live | live | live | live | live | live |
| Who can get it | a company registering a Kleber account with its name and company details: its SaaS Agreement is with the Company specified in the order, for its internal business purposes | anyone at least 18 years old, or the age of majority in their jurisdiction | anyone 18 or over, on a new account, for an organization, someone with authority to bind it | anyone 16 or over | anyone | anyone at least 18 years of age |
Sources
From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-05.
Product details
The key fields this plan's answer can hold, then each filled column in its row on the sheet.
- Address
- Deliverability
- Confidence, not in the answer
- Name, not in the answer
- Place, not in the answer
- Company, not in the answer
| $ per 1,000 emails | $0.00 |
|---|---|
| Billing | free |
| Aggregators | none |
|---|
| Also pays for | from the same budget: DataTools.Verify.PhoneNumber.ReachTel.VerifyPhoneNumberIsConnected · DataTools.Verify.Address.AuPaf.VerifyAddress · DataTools.Repair.Address.AuPaf.RepairAddress · DataTools.Verify.Bsb.AuApca.VerifyBsb · DataTools.Parse.Address.Au.Parse · DataTools.Parse.PersonName.Parse · DataTools.Parse.PhoneNumber.Au.ParseAndFormat · DataTools.Enhance.Address.Geocoding.Gnaf.Au.Append · DataTools.Enhance.Address.Geocoding.AcxiomStandard.Append · DataTools.Capture.Address.Predictive.AuPaf.SearchAddress · DataTools.Capture.Address.Predictive.AuPaf.RetrieveAddress · DataTools.Capture.Address.Predictive.Gnaf.SearchAddress · DataTools.Capture.Address.Predictive.Gnaf.RetrieveAddress · DataTools.Capture.Address.Predictive.Gnaf.RetrieveGeocode · DataTools.Capture.Address.Predictive.IntPca.SearchAddress · DataTools.Capture.Address.Predictive.IntPca.RetrieveAddress · DataTools.Capture.Address.Predictive.NzPaf.SearchAddress · DataTools.Capture.Address.Predictive.NzKms.SearchAddress · DataTools.Capture.Address.Predictive.NzKms.RetrieveAddress · DataTools.Capture.Address.Predictive.Nzad.SearchAddress |
|---|
| Units cap | hard |
|---|
| $ per 1,000 | $0.00 |
|---|
| Their pitch | Validate email addresses to bid farewell to bounce backs, welcome engaged customers and unlock the full potential of your email campaigns with DataTools' Kleber email validation. |
|---|
| Freshness | live |
|---|---|
| What it checks | format, mail servers, disposable domains, role addresses, mailbox |
| Keep data | no period set, on request it must cease use and return or destroy the Confidential Information it holds (7(c)), which includes data supplied by the Supplier (7(d)) |
| Use data | non-exclusive, non-transferable, revocable basis, for the Customer's internal business purposes [...] The Customer agrees that it shall not (and shall not assist or allow a third party) to do or attempt to do any of the following: (i) reproduce, transfer, distribute, market, publish, sell, re-sell, rent, lease out, sub-license, supply, commercialise, modify, adapt, disassemble, merge, decompile, copy, reverse engineer or create derivative works of the Services, Service Output or the Documentation or the mechanism through which the Services are made available to the Customer, (ii) remove, alter, or obscure any copyright notices, trademarks, or other proprietary rights notices included in the Services or Documentation, (iii) use the Services to create any product or service which competes with any component of the Services, (iv) undertake any data cleansing activities unless otherwise permitted under this Agreement, (v) extract or attempt to extract the Validation Data from the Services, or (vi) perform any act or omission to circumvent the restrictions in this Agreement. |
| Pay | $0 |
|---|---|
| You get | $50 |
| Batch | 1 |
|---|
| Answer | in the call |
|---|
| You send | Docs behind sign-up |
|---|
| Plan | Free credit |
|---|---|
| Who can get it | a company registering a Kleber account with its name and company details: its SaaS Agreement is with the Company specified in the order, for its internal business purposes |
The 7 fields the plan's answer can hold
status code, status description, email account, email domain, connected, disposable, role address