Email validation API
Kickbox, $1,800 pack, 500,000 verifications, GET /
$3.60per 1,000 emailsThe median plan costs $4.82 per 1,000. This plan costs less than 56% of the 660 priced plans.
Plan: 500,000 verifications one of Kickbox's 14 plans
- Free, 100 verifications100 verifications$0.00 per 1,000
- $5 pack, 500 verifications500 verifications$10.00 per 1,000
- $10 pack, 1,000 verifications1,000 verifications$10.00 per 1,000
- $25 pack, 2,500 verifications2,500 verifications$10.00 per 1,000
- $40 pack, 5,000 verifications5,000 verifications$8.00 per 1,000
- $70 pack, 10,000 verifications10,000 verifications$7.00 per 1,000
- $150 pack, 25,000 verifications25,000 verifications$6.00 per 1,000
- $275 pack, 50,000 verifications50,000 verifications$5.50 per 1,000
- $500 pack, 100,000 verifications100,000 verifications$5.00 per 1,000
- $1,100 pack, 250,000 verifications250,000 verifications$4.40 per 1,000
- $1,800 pack, 500,000 verifications500,000 verifications$3.60 per 1,000
- $2,400 pack, 750,000 verifications750,000 verifications$3.20 per 1,000
- $2,999 pack, 1,000,000 verifications1,000,000 verifications$2.999 per 1,000
- Contact us, Over 1M verificationsOver 1M verifications
Call:
GET / one of Kickbox's 2 callsGET /$1,800 pack, 500,000 verifications$3.60 per 1,000verify PUT /$1,800 pack, 500,000 verifications$3.60 per 1,000verify-batch
About this item
- Live. The call checks the email when you make it.
- You buy a pack of credits, then spend them on calls. You pay $1,800 for 500,000 credits, enough for 500,000 calls. Unused credits expire: 1 year from purchase.
- One call. You send email, timeout, include_threat, threat_only to
GET /. The call returns whether the address takes mail.verify - Anyone can get it. Keep data: no limit. Use data: with conditions.
Compare with similar plans
Other providers' plans with the closest prices per 1,000. Like this plan, each is live.
| This planKickbox, $1,800 pack, 500,000 verifications, GET /verify | Emailable, $357 monthly, Monthly, 100,000 credits, GET /v1/verify | ZeroBounce, $4,308 yearly, ZeroBounce ONE annually, 100,000 credits a month, GET /v2/validate | Clearout, $360 monthly | Airscale, $729 monthly | |
|---|---|---|---|---|---|
| $ per 1,000 | $3.60 | $3.57 | $3.59 | $3.60 | $3.645 |
| Billing | pay first | monthly | yearly | monthly | monthly |
| Pay | $1,800 | $357 | $4,308 | $360 | $729 |
| Enough for | 500,000 calls | 100,000 calls a month | 100,000 calls a month | 100,000 calls a month | 200,000 calls a month |
| Freshness | live | live | live | live | live |
| Who can get it | anyone | anyone 18 or over (or of the age of majority) able to conclude legally binding contracts | anyone, for their internal business purposes only, not a resident of a country the US OFAC sanctions or on its restricted lists | anyone | anyone 18 or over |
Sources
From each provider's own pricing page and docs. We read this row from these pages on 2026-10-17.
- docs.kickbox.com/docs/acceptable-use-policy
- docs.kickbox.com/docs/add-threat-score-to-your-api
- docs.kickbox.com/docs/list-security-and-privacy
- docs.kickbox.com/docs/privacy-policy
- docs.kickbox.com/docs/single-verification-api
- docs.kickbox.com/docs/terminology
- docs.kickbox.com/docs/terms-of-service
- docs.kickbox.com/docs/using-the-api
- docs.kickbox.com/reference/verify-an-email-address
- kickbox.com/email-verification-api
- kickbox.com/pricing
- knowledge.kickbox.com/portal/en/kb/articles/are-credits-purchased-per-list-how-often-do-i-need-to-repurchase
- knowledge.kickbox.com/portal/en/kb/articles/how-is-the-cost-of-email-verification-calculated
- knowledge.kickbox.com/portal/en/kb/articles/is-there-a-monthly-commitment-to-using-kickbox
- knowledge.kickbox.com/portal/en/kb/articles/what-are-email-verification-credits
- knowledge.kickbox.com/portal/en/kb/articles/what-do-unknown-results-mean
- knowledge.kickbox.com/portal/en/kb/articles/will-i-still-be-charged-if-i-get-an-unknown-result
Product details
We list each column of this plan's row on the sheet that has a value.
| $ per 1,000 | $3.60 |
|---|---|
| Billing | pay first |
| Per | call |
|---|---|
| Extra fields | threat score, threat level: +$3.60 |
| $ per 1,000 | $0.00 |
|---|
| $ per 1,000 | $3.60 |
|---|
| Their pitch | Use Kickbox’s point-of-capture API to prevent fake and mistyped signups at the source, keeping your email database clean on a cost-effective, pay-as-you-go basis. |
|---|
| Freshness | live |
|---|---|
| Keep data | no limit |
| Use data | Customer and its authorized users shall only use the Services for the verification and/or confirmation of electronic mail addresses in accordance with the terms of this Agreement and will not use them in any manner that may degrade the performance or availability of the Services. [...] Customer shall not resell, lease, rent, transfer, sublicense, or otherwise transfer rights to the Services. Customer shall not use Kickbox to perform competitive analysis. [...] Customer hereby agrees and warrants that Customer and Customer's authorized users will not engage in, encourage, enable, or permit: Using the Services for purposes directly or indirectly relating to the sending of unsolicited bulk commercial email ("Spam") of any kind, Using the Services to verify email address(es) obtained from a third party or obtained indirectly without the recipients' knowledge and consent, Using the Services to verify email address(es) of anyone who has not opted-in, or who has opted-out, of receiving email communications from Customer, Using the Services to harvest email addresses or otherwise determine the existence of unknown email addresses [...] Committing or attempting to commit a crime or facilitate the commission of any crime or other illegal or tortious act, or using the Services for any activity or conduct that is or is likely to be in breach of any applicable laws, codes or regulations, including data protection and privacy laws and laws relating to unsolicited commercial electronic messages [...] Acceptable Use Policy: To use our Service, you must agree to verify only permission-based email addresses. This means all recipients must have opted-in to receive communications from the verifying entity. [...] Purchased lists may not be used with the Service, regardless of the source or permission status. [...] You may not use Kickbox's Service to: verify harvested email addresses from websites or other sources, verify purchased lists (whether they are opt-in or not), verify permutations of email addresses, also known as directory harvesting, verify email addresses generated via email appending, verify email addresses without the subscriber's permission to receive email communications from your entity [...] If you use the Services to verify email addresses obtained in any way other than a subscriber opting-in to your list, you may incur a $100 (US) charge per substantiated incident (i.e. per verification) |
| Pay | $1,800 |
|---|---|
| You get | 500,000 credits |
| Enough for | 500,000 calls |
| Expires | 1 year from purchase |
| Per second | 133.33 |
|---|---|
| Concurrent | 25 |
| Batch | 1 |
| Answer | in the call |
|---|
| You send | email, timeout, include_threat, threat_only |
|---|---|
| Method | GET |
| Path | /verify |
| Plan | 500,000 verifications |
|---|---|
| Who can get it | anyone |
The 13 fields in the plan's answer
status, status reason, role address, free email, disposable, catch-all, did you mean, sendex score, email, local part, domain, success, error message