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API League pricing: email verification API

API League's sitellms.txtBest email verification API in 2026: providers comparedAPI League: email verification API alternatives

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67% complete: 4 of the 6 key fields we checkSee the 6 fields
$0.00per 1,000 emailsWe rank 3,228 plans by price. treg's top-up from $10 is the cheapest paid plan per 1,000 emails: $0.00 on average. treg asks one provider after another until one answers. You pay $68.365 per 1,000 emails when no provider answers.Disify's $9 monthly plan (/email) covers any number of emails. Disify's $9 monthly plan costs less up front than treg's top-up from $10.MailTester Ninja, Enrich.so and GetProspect are the best email verification API providers in our benchmark.
Plan: Free one of API League's 4 plans
Call: GET /verify-email API League's only call for this API
API: Email verification API one of API League's 5 APIs

About this item

  • Live. API League checks the email when you call the API.
  • 4 of the 6 key fields we check. Address, Deliverability, Name, Company.
  • Nothing to pay. You get 50 tokens a day, enough for 50 calls. Calls stop once your units run out. Unused units expire at midnight UTC, when the daily quota resets.
  • One call. You send email to GET /verify-email. The call returns whether the address takes mail.
  • Anyone can get it. Keep data: with conditions. Use data: with conditions.

API League: email verification API alternatives

API League alternatives: every email verification API provider ranked

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

API League, $199 monthlyMy Addr, top-up, from 5,000,000ProWebLook, $6,799.20 monthlySMTPing, $499 yearly, Enterprise, POST /verify/bulkVerifySwift, $2,499.99 monthly, Daily Credits 600,000 a day
$ per 1,000 emails$0.133$0.13$0.136$0.139$0.139
Completeness67%17%33%50%50%
Billingmonthlypay firstmonthlyyearlymonthly
Pay$199any amount$6,799.20$499$2,499.99
Enough for50,000 calls a dayas many as you pay for50,000,000 calls a month300,000 results a month600,000 calls a day
Freshnesslivelivelivelivelive
Who can get itanyonean account with 5,000,000 or more emails already verified and paid for, paying in Bitcoin or Litecoinanyoneanyone at least 18 years oldanyone 18 or older

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-02.

  1. apileague.com
  2. apileague.com/apis/email-verification-api/
  3. apileague.com/docs/quotas-and-rate-limiting
  4. apileague.com/pricing
  5. apileague.com/terms

Product details

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

  • Address
  • Deliverability
  • Confidence, not in the answer
  • Name
  • Place, not in the answer
  • Company
Price
$ per 1,000 emails$0.00
Percall
Billingfree
Aggregators
Aggregatorsnone
Charges
Also pays forfrom the same budget: 54 other calls
Overage
Units caphard
Not found
$ per 1,000$0.00
In their words
Their pitchThis email checker API allows you to validate an email address.
Data
Freshnesslive
What it checksformat, disposable domains, mailbox
Keep datano copy or storage of what it provides, with prior written permission, a cache of user-requested data for a maximum of 1 hour
Use dataNon-Commercial Use, Backlink Required, a link to apileague.com on your website or application. You may use the data provided by the API League as part of your website, application, or other project, but you cannot use API League data to create a site or application meant to provide the same experience as API League [...] You may not create the impression that your site or application is endorsed by API League, nor may you use any API League brands/logos to promote your site/app without prior permission [...] You may not scrape the API League or in any way attempt to copy or store the information it provides, including any derived, hashed, or transformed data [...] You may not resell any data received via the API League. You may use the API League in order to compare the API League to API League competitors
Plan
Pay$0
You get50 tokens a day
Enough for50 calls a day
Expiresat midnight UTC, when the daily quota resets
Rate limit
Per second1
Concurrent1
Batch1
Speed
Answerin the call
Median0.78 s
The call
You sendemail
MethodGET
Path/verify-email
About the plan
PlanFree
Who can get itanyone
The 12 fields the plan's answer can hold

email address, domain, first name, middle name, last name, full name, username, image, result, disposable, accept all, free provider

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