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Fiber AI pricing and alternatives: email finder API, batch/start, Start batch contact details, full

Fiber AI's sitellms.txtBest email finder API in 2026

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30% complete: 3 of the 10 key fields we checkSee the 10 fields
$0.00per 1,000 emailsWe rank 1,256 plans by price. ClearBounce's $3.20 monthly plan costs the least per 1,000 emails: as little as $0.00074. ClearBounce's $3.20 monthly plan covers up to 4,320,000 emails a month at no extra cost.ClearBounce's $4 pack covers any number of emails. ClearBounce's $4 pack costs more to start than ClearBounce's $3.20 monthly plan.GetProspect, OrbiSearch and DataForB2B are the best email finder API providers in our benchmark.
Plan: Cardless API trial one of Fiber AI's 9 plans
Call: POST /v1/contact-details/batch/start, Start batch contact details, full one of Fiber AI's 10 calls for this API
API: Email finder API one of Fiber AI's 9 APIs

About this item

  • Freshness. We don't know how fresh this plan's data is.
  • 3 of the 10 key fields we check. Verification, Personal email, LinkedIn URL.
  • Nothing to pay. You get 100 credits once, enough for 20 results. Unused credits expire when the 7 days pass without a card, the trial ends.
  • One call. You send personDetails[].linkedinUrl.value to POST /v1/contact-details/batch/start. The call returns a job. You fetch the answer once the job is done. Or the provider sends the answer to your webhook.
  • Who can get it: with conditions. Keep data: with conditions. Use data: with conditions.

Fiber AI: email finder API alternatives

The table starts with Fiber AI's cheapest paid plan. Next come plans from other providers with the price per 1,000 emails closest to Fiber AI's.

Fiber AI, $24,000 yearly, Enterprise, POST /v1/contact-details/batch/start, Start batch contact details, fullThe Swarm, $1,990 yearlyPubrio, $2,388 yearlyLeadIQ, $240.24 yearly, Pro, 3,600 credits a year, POST /graphql, searchPeoplelemlist, $134 pack
$ per 1,000 emails$66.667$66.333$66.333$66.733$67.00
Completeness30%60%20%80%60%
Billingyearlyyearlyyearlyyearlypay first
Pay$24,000$1,990$2,388$240.24$134
Enough for30,000 results a month30,000 results a year3,000 calls a month3,600 results a year2,000 calls
Freshnessunknown1 daystored1 monthlive
Who can get itanyone, to use only in the United Statesanyone over 18business users who have reached the age of majority, not consumersanyone, for their internal business purpose only, 18 or over with authority to bind it when accepting for a company, not in a US-embargoed country or on a US restricted listprofessionals 18 or over

Every email finder API provider we score, ranked

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-23.

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

Product details

The key fields this plan's answer can hold, then each filled column in its row on the sheet.

  • Verification
  • Confidence, not in the answer
  • Catch-all domain, not in the answer
  • Where found, not in the answer
  • Personal email
  • Name, not in the answer
  • Job title, not in the answer
  • Company, not in the answer
  • LinkedIn URL
  • Location, not in the answer
Price
$ per 1,000 emails$0.00
Perresult
Billingfree
Aggregators
Aggregatorsnone
Not found
$ per 1,000$0.00
In their words
Their pitchStarts fetching contact details for multiple people (up to 2000) in batch. This is an asynchronous task, use the polling endpoint to check progress and get results.
Data
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$0
You get100 credits
Enough for20 results, once
Expireswhen the 7 days pass without a card, the trial ends
Rate limit
Per second0.5
Batch2,000
Speed
Answerby polling or webhook
The call
You sendpersonDetails[].linkedinUrl.value. Optional: enrichmentTypes.getWorkEmails, enrichmentTypes.getPersonalEmails "true", enrichmentTypes.getPhoneNumbers "true"
MethodPOST
Path/v1/contact-details/batch/start
About the plan
PlanCardless API trial
Who can get itanyone with a work email, one trial per company domain, to use only in the United States
The 8 fields the plan's answer can hold

LinkedIn URL, email, email type, email status, exhaustive, personal email, phone number, phone type

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