Datacircle

MailerCheck, POST /check/single: 18 email validation API plans

MailerCheck's sitellms.txt
17% complete: 1 of the 6 key fieldsSee which
$0.00per 1,000 emails
Plan: 10 free credits one of MailerCheck's 18 plans
Call: POST /check/single one of MailerCheck's 3 calls

About this item

  • Live. The call checks the email when you make it.
  • 1 of the 6 key fields. Its check.
  • Nothing to pay. You get 10 credits once, enough for 10 calls. Credits never expire.
  • One call. You send email to POST /check/single. The call returns whether the address takes mail.
  • Who can get it: with conditions. Keep data: no limit. 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 planMailerCheck, free, 10 free credits, POST /check/singleMelissa, free, Monthly Top-off, GET /V4/WEB/GlobalEmail/doGlobalEmailMinelead, freeMailValidation.io, free, Free, POST /api/validate/MyEmailVerifier, free, 100 free credits daily, GET /verifier/validate_single/{email}/{API_KEY}
$ per 1,000$0.00$0.00$0.00$0.00$0.00
Completeness17%50%50%33%33%
Billingfreefreefreefreefree
Pay$0$0$0$0$0
Enough for10 calls, once250 calls a month25 calls a month100 calls100 calls a day
Freshnesslivelivelivelivelive
Who can get itanyone who is at least 18, uses it for their trade, business, craft or profession, and is not registered in a country or region sanctioned by the United States, United Kingdom, European Union or United Nationsanyone who pays the "$4.97 Verification Fee (One-Time)" (a KYC/AML identity check), after it Melissa tops off up to 1,000 free credits a monthanyoneanyoneanyone who verifies a phone number

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-19.

  1. developers.mailercheck.com/
  2. developers.mailercheck.com/email
  3. mailercheck.com/features/real-time-api-verification
  4. mailercheck.com/help/mailercheck-user-guide/buying-credits
  5. mailercheck.com/help/mailercheck-user-guide/list-verification
  6. mailercheck.com/help/mailercheck-user-guide/single-address-verification
  7. mailercheck.com/legal/terms-of-use
  8. mailercheck.com/pricing

Product details

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

  • Address, not in the answer
  • Its check
  • Confidence, not in the answer
  • Name, not in the answer
  • Place, not in the answer
  • Company, not in the answer
Price
$ per 1,000$0.00
Billingfree
Aggregators
Aggregatorsnone
Charges
Percall
Also pays forfrom the same budget: Single email verification (Async) · List verification · Email Insights · Inbox Placement
Not found
$ per 1,000$0.00
In their words
Their pitchMailerCheck’s email validation API verifies new email addresses as you collect them and instantly filters out emails with typos, errors, catch-all domains and more.
Data
Freshnesslive
Keep datano limit
Use datause the Services solely for purposes relating to your trade, business, craft, or profession [...] the Services are strictly for commercial use and that you are not authorized to use the Services for personal, family, or household purposes [...] You must not use this website in any way that causes or may cause damage to MailerCheck or any other party, or in any way which is illegal, fraudulent, harmful or unlawful
Plan
Pay$0
You get10 credits
Enough for10 calls, once
Expiresnever
Rate limit
Per second1
Batch1
Speed
Answerin the call
The call
You sendemail
MethodPOST
Path/check/single
About the plan
Plan10 free credits
Who can get itanyone who is at least 18, uses it for their trade, business, craft or profession, and is not registered in a country or region sanctioned by the United States, United Kingdom, European Union or United Nations
The only field the plan's answer can hold

status