Email validation API
Fiber AI, $2,400 monthly
$16.00per 1,000 emailsThe median plan costs $4.82 per 1,000. This plan costs less than 9% of the 660 priced plans.
Plan: Enterprise one of Fiber AI's 10 plans
- Free, Cardless API trialCardless API trial$0.00 per 1,000
- Free, 7-day free trial7-day free trial$0.00 per 1,000
- $3 packPay-as-you-go$30.00 per 1,000
- $300 monthlyProspector$20.00 per 1,000
- $900 monthlyGrowth$18.00 per 1,000
- $2,400 monthlyEnterprise$16.00 per 1,000
- $3,000 yearlyProspector$16.667 per 1,000
- $9,000 yearlyGrowth$15.00 per 1,000
- $24,000 yearlyEnterprise$13.333 per 1,000
- Contact usEnterprise & bulk data
Call:
POST / Fiber AI's only callAbout this item
- Live. The call checks the email when you make it.
- A subscription billed every month. You pay $2,400 for 150,000 credits a month, enough for 150,000 calls a month. Unused credits expire: credits stay usable for 14 days after a usage period ends.
- One call. You send email to
POST /. The call returns whether the address takes mail.v1/ validate-email/ single - Who can get it: anyone, to use only in the United States. Keep data: with conditions. 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 planFiber AI, $2,400 monthly | Instantly, $94 monthly | Findymail, $990 yearly | Databar, $199 monthly | Dropcontact, €11,688 yearly | |
|---|---|---|---|---|---|
| $ per 1,000 | $16.00 | $15.667 | $16.50 | $16.583 | $16.607 |
| Billing | monthly | monthly | yearly | monthly | yearly |
| Pay | $2,400 | $94 | $990 | $199 | €11,688 |
| Enough for | 150,000 calls a month | 6,000 calls a month | 60,000 calls a year | 12,000 calls a month | 66,000 results a month |
| Freshness | live | live | live | live | live |
| Who can get it | anyone, to use only in the United States | anyone with authority to bind the entity they represent | anyone 18 or over | businesses, universities and other organizations, not consumers | professionals acting within their activity (a natural person with the power to commit, or a legal person) |
Sources
From each provider's own pricing page and docs. We read this row from these pages on 2026-10-17.
Product details
We list each column of this plan's row on the sheet that has a value.
| $ per 1,000 | $16.00 |
|---|---|
| Billing | monthly |
| $ a month | $2,400 |
| Per | call |
|---|
| Add-ons | 1,000 credits once for $20 ($20.00 per 1,000) |
|---|
| $ per 1,000 | $16.00 |
|---|
| Their pitch | Email validation tells you whether an address will bounce before you send to it. Send one email, we return a verdict, a deliverability score out of 100, and flags for catch-all, role-based, disposable, and consumer addresses. |
|---|
| Freshness | live |
|---|---|
| Keep data | a limited, non-exclusive, non-transferable, non-sublicensable right to (A) view and store the Prospect Data [...] Prospect Data and Usage Data are Confidential Information of Fiber AI. [...] After any expiration or termination of these Terms, or at any time upon request from Fiber AI, Customer will immediately return or destroy (at Fiber AI's sole direction) all materials or media containing any Confidential Information |
| Use data | solely for purposes of conducting business-to-business sales, marketing, or business development activities and for Customer's other internal business purposes (the "Permitted Uses"). Customer may not resell, transfer, assign, or sublicense Customer's rights under these Terms to any third party or use the Services to run an outsourcing business or provide services for the benefit of any third party. [...] Customer (A) will not, and will ensure that Customer Personnel do not, incorporate any Prospect Data into Customer's products or services or otherwise resell, sublicense, or distribute any Prospect Data, (B) will not [...] present the Prospect Data so that it appears to be made available by any third party, (C) will process all Prospect Data in accordance with Laws, including Privacy and Data Laws [...] (F) not use the Services, including Prospect Data, to determine a consumer’s eligibility for (i) credit or insurance for personal, family or household purposes, (ii) employment or (iii) a government license or benefit or (iv) any other purpose governed by the Fair Credit Reporting Act [...] Customer will not [...] (h) develop any scripts or software applications that interact with or integrate with the Services unless first authorized in writing by Fiber AI [...] The Services are currently authorized to be used only in the United States to facilitate business-to-business sales, marketing, or business development communications with individuals in the United States |
| Pay | $2,400 |
|---|---|
| You get | 150,000 credits a month |
| Enough for | 150,000 calls a month |
| Expires | credits stay usable for 14 days after a usage period ends |
| Batch | 1 |
|---|
| Answer | in the call |
|---|
| You send | |
|---|---|
| Method | POST |
| Path | /v1/validate-email/single |
| Plan | Enterprise |
|---|---|
| Who can get it | anyone, to use only in the United States |
The 18 fields in the plan's answer
email, verdict, deliverability score, catch-all, role-based, disposable, consumer, email provider, charge method, credits charged, credits refunded, charge message, credits remaining, low credit message, get more credits URL, warning field, warning message, advice