Datacircle

MailValid, POST /api/v1/verify/single: 18 email validation API plans

MailValid's sitellms.txt
67% complete: 4 of the 6 key fieldsSee which
$0.00per 1,000 emails
Plan: Free one of MailValid's 18 plans
Call: POST /api/v1/verify/single one of MailValid's 3 calls

About this item

  • A copy at most 30 days old. You may get MailValid's answer from an earlier check of the email.
  • 4 of the 6 key fields. Address, Its check, Confidence, Company.
  • Nothing to pay. You get 100 credits once, enough for 100 calls. Credits never expire.
  • One call. You send email to POST /api/v1/verify/single. The call returns whether the address takes mail.
  • Who can get it: anyone at least 18 years old. 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 or a copy at most a month old.

This planMailValid, free, Free, POST /api/v1/verify/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
Completeness67%50%50%33%33%
Billingfreefreefreefreefree
Pay$0$0$0$0$0
Enough for100 calls, once250 calls a month25 calls a month100 calls100 calls a day
Freshness30 dayslivelivelivelive
Who can get itanyone at least 18 years oldanyone 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 2026-10-20.

  1. mailvalid.io/api/public-openapi.json
  2. mailvalid.io/docs
  3. mailvalid.io/faq.md
  4. mailvalid.io/llms.txt
  5. mailvalid.io/pricing
  6. mailvalid.io/pricing.md
  7. mailvalid.io/privacy
  8. mailvalid.io/refund
  9. mailvalid.io/terms
  10. mailvalid.io/use-cases/email-verification-api

Product details

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

  • Address
  • Its check
  • Confidence
  • Name, not in the answer
  • Place, not in the answer
  • Company
Price
$ per 1,000$0.00
Billingfree
Aggregators
Aggregatorsnone
Charges
Repeat freenever
Percall
Also pays forfrom the same budget: Bulk Email Verification
Not found
$ per 1,000$0.00
Catch-all
$ per 1,000$0.00
Bounce
Bounce refundthe equivalent credits of misverified emails, on a batch of 1,000+ below 99% accuracy, reported with its batch ID and bounce rate data and confirmed
In their words
Their pitchMailValid's email verification API checks syntax, DNS/MX records, and SMTP mailbox existence in a single REST call, returning a result in under 500ms.
Data
Freshness30 days
Keep datano limit
Use dataYou agree NOT to use the Service to: Verify email addresses obtained without consent (spam, scraping, purchased lists), Violate any applicable laws, including anti-spam regulations (CAN-SPAM, GDPR, etc.), Resell, sublicense, or redistribute access to the Service without written permission, Attempt to reverse-engineer, decompile, or extract the Service's underlying technology, Exceed rate limits or attempt to disrupt the Service's infrastructure, Use the Service for any illegal, harmful, or fraudulent purpose
Plan
Pay$0
You get100 credits
Enough for100 calls, once
Expiresnever
Rate limit
Per second0.17
Batch1
Speed
Answerin the call
The call
You sendemail
MethodPOST
Path/api/v1/verify/single
About the plan
PlanFree
Who can get itanyone at least 18 years old
The 21 fields the plan's answer can hold

success, credits used, email, status, is valid, syntax valid, domain, domain valid, has MX, MX records, SMTP checked, SMTP response code, disposable, role based, catch all, free provider, confidence score, status reason, provider, verification time, cached