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ProspectAPIs pricing and alternatives: email finder API

ProspectAPIs's sitellms.txtBest email finder API in 2026
20% complete: 2 of the 10 key fields we checkSee the 10 fields
found live
$0.00per 1,000 emailsThe cheapest of the 743 plans we rank by price is DataForB2B, $499 monthly, Growth, POST /enrich/profile, 5,000,000 results a month, at $0.10 per 1,000 emails.
Plan: Free one of ProspectAPIs's 5 plans
Call: POST /v1/email/find ProspectAPIs's only call for this API
API: Email finder API one of ProspectAPIs's 4 APIs

About this item

  • Live. The provider finds the email when you call.
  • 2 of the 10 key fields we check. Confidence, Company.
  • Nothing to pay. You get $1 of credit once, enough for 50 calls. Credit never expires.
  • One call. You send first_name and domain to POST /v1/email/find. You can also send last_name and Idempotency-Key. The call returns the email.
  • Who can get it: anyone, one account per person or company. Keep data: no limit. Use data: with conditions.

ProspectAPIs: email finder API alternatives

The table starts with ProspectAPIs's cheapest paid plan. Next come plans from other providers with the price per 1,000 emails closest to ProspectAPIs's. Each plan in the table gives live data.

ProspectAPIs, top-up from $2,000HarvestAPI on Apify, $10,788 yearlySealch, $9 monthlyMyEmailVerifier, $159 monthly, Monthly Subscription, 250,000 emails + 12,500 bonus, POST /leads/search/{apikey}Airscale, $5,490 yearly, Growth 1,200,000 / year, POST /v1/email
$ per 1,000 emails$9.091$8.999$9.00$9.086$9.15
Completeness20%50%20%20%30%
Billingpay firstyearlymonthlymonthlyyearly
Pay$2,000$10,788$9$159$5,490
Enough for220,000 calls99,900 results a month1,000 calls a month17,500 calls a month600,000 calls a year
Freshnesslivelivelivelivelive
Who can get itanyone, one account per person or companybusiness use only, 18 or overanyoneanyoneanyone 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 2026-10-26.

  1. prospectapis.com
  2. prospectapis.com/acceptable-use
  3. prospectapis.com/docs/email-verification
  4. prospectapis.com/docs/rate-limits
  5. prospectapis.com/docs/reference/email-find
  6. prospectapis.com/pricing
  7. prospectapis.com/terms

Product details

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

  • Verification, not in the answer
  • Confidence
  • Catch-all domain, not in the answer
  • Where found, not in the answer
  • Personal email, not in the answer
  • Name, not in the answer
  • Job title, not in the answer
  • Company
  • LinkedIn URL, not in the answer
  • Location, not in the answer
Price
$ per 1,000 emails$0.00
Percall
Billingfree
Strengths
Strengthsfound live
Aggregators
Aggregatorsnone
Not found
$ per 1,000$0.00
Catch-all
$ per 1,000$0.00
Bounce
Bounce refundthe check's price, credited back once when an address reported valid bounces and is reported through POST /v1/email/outcomes within 30 days, up to 10% of the valid checks charged in those 30 days
In their words
Their pitchChecks the common company patterns for a person against the mail server, most common first, and returns the first that is valid.
Data
Freshnesslive
Keep datano limit
Use dataCheck anything that matters before you rely on it, and do not use the service as the only basis for a decision with legal or similar effect on a person. You may use what the API returns inside your own products and workflows. You may not resell or republish the data as a substantially similar dataset or API. [...] Use of the service must follow the acceptable use policy. [...] This policy sets the limits on how the service and its output may be used. [...] Use it for: Researching companies and the people who publicly represent them in a business role. Preparing for sales calls and writing outreach that is relevant to the recipient. Account research, territory planning and enriching business records with funding history. Do not use it to: Profile private individuals, or research anyone outside a business context. Harass, stalk, threaten or discriminate against anyone. Send messages that break anti-spam or marketing consent laws where the recipient is. Make decisions about employment, credit, insurance or housing for an individual. Resell or republish the data as a substantially similar dataset or API. Share API keys between unrelated parties, or create accounts to multiply free records. Probe, overload or work around the rate limits, billing or security of the service. Send the research API inputs you have no right to share, such as confidential third-party data in context.
Plan
Pay$0
You get$1
Enough for50 calls, once
Expiresnever
Rate limit
Per second1
Batch1
Speed
Answerin the call
Median2.35 s
The call
You sendfirst_name, domain. Optional: last_name, Idempotency-Key
MethodPOST
Path/v1/email/find
About the plan
PlanFree
Who can get itanyone, one account per person or company
The 12 fields the plan's answer can hold

status, email, pattern, best guess, domain, score, recommendation, reason, checked addresses, charged, amount (USD), checked at

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