Datacircle
Email validation API

Fiber AI, $24,000 yearly

Fiber AI's sitellms.txt
$13.333per 1,000 emailsThe median plan costs $4.82 per 1,000. This plan costs less than 12% of the 660 priced plans.
Plan: Enterprise one of Fiber AI's 10 plans
Call: POST /v1/validate-email/single Fiber AI's only call

About this item

  • Live. The call checks the email when you make it.
  • A subscription billed every year. You pay $24,000 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 /v1/validate-email/single. The call returns whether the address takes mail.
  • 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, $24,000 yearlyZeroBounce, $129 pack, Pay-As-You-Go, 10,000 credits, GET /v2/validateFindymail, $399 monthlyTomba, $801 yearlylemlist, $134 pack
$ per 1,000$13.333$12.90$13.30$13.35$13.40
Billingyearlypay firstmonthlyyearlypay first
Pay$24,000$129$399$801$134
Enough for150,000 calls a month10,000 calls30,000 calls a month5,000 calls a month10,000 calls
Freshnesslivelivelivelivelive
Who can get itanyone, to use only in the United Statesanyone, for their internal business purposes only, not a resident of a country the US OFAC sanctions or on its restricted listsanyone 18 or overanyone 18 or overprofessionals 18 or over

Sources

From each provider's own pricing page and docs. We read this row from these pages on 2026-10-17.

  1. api.fiber.ai/ai-docs/emailBounceDetection.md
  2. api.fiber.ai/llms-full.txt
  3. docs.fiber.ai/billing
  4. docs.fiber.ai/billing/pricing
  5. docs.fiber.ai/build/rate-limits
  6. docs.fiber.ai/enrichment/email-validation
  7. docs.fiber.ai/linkedin/live-fetch
  8. fiber.ai/llms.txt
  9. fiber.ai/pricing
  10. fiber.ai/pricing.md
  11. fiber.ai/terms

Product details

We list each column of this plan's row on the sheet that has a value.

Price
$ per 1,000$13.333
Billingyearly
$ a month$2,000
Charges
Percall
Overage
Add-ons1,000 credits once for $20 ($20.00 per 1,000)
Catch-all
$ per 1,000$13.333
In their words
Their pitchEmail 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.
Data
Freshnesslive
Keep dataa 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 datasolely 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
Plan
Pay$24,000
You get150,000 credits a month
Enough for150,000 calls a month
Expirescredits stay usable for 14 days after a usage period ends
Rate limit
Batch1
Speed
Answerin the call
The call
You sendemail
MethodPOST
Path/v1/validate-email/single
About the plan
PlanEnterprise
Who can get itanyone, 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