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uChecker pricing: email verification API, POST /api/v1/validate/single

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33% complete: 2 of the 6 key fields we checkSee the 6 fields

$0.00per 1,000 emailsIn our email verification API benchmark, the best plan from uChecker scores 55.0 out of 100. uChecker ranks 46th of 181 providers.This plan is free. We rank 3,753 plans for email verification APIs by price. Half the plans cost $1.98 per 1,000 emails or less.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 the Datacircle benchmark.
Plan: First 100 addresses free one of uChecker's 11 plans
Call: POST /api/v1/validate/single one of uChecker's 2 calls
API: Email verification API uChecker's only API

About this item

  • Live. uChecker checks the email when you call the API.
  • 2 of the 6 key fields we check. Address, Deliverability.
  • Nothing to pay. You get 100 credits once, enough for 100 calls. Calls stop once your credits run out. Credits never expire.
  • One call. You send email to POST /api/v1/validate/single. You can also send webhook_url and client_type. The call returns a job. You fetch the answer once the job is done. Or the provider sends the answer to your webhook.
  • Anyone can get it. Keep data: no limit. Use data: with conditions.

uChecker: email verification API alternatives

uChecker alternatives: every email verification API provider ranked

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

uChecker, ₽25,000 pack, 500,000 addresses, POST /api/v1/validate/singleKaijuVerifier, $149 monthly, Scale, POST /api/v1/verify-single, Verify a single email with the SMTP probe (authenticated)DeBounce, $1,196 monthly, 2M credits, Monthly, GET /v1/, Single email validationBouncify, $299 monthlyInvalid Bounce, $299 pack
$ per 1,000 emails$0.597$0.596$0.598$0.598$0.598
Completeness33%50%50%50%17%
Billingpay firstmonthlymonthlymonthlypay first
Pay₽25,000$149$1,196$299$299
Enough for500,000 calls250,000 calls a month2,000,000 calls a month500,000 calls a month500,000 results
Freshnesslivelivelivelivelive
Who can get itanyoneanyoneanyone over 18anyone outside Europe and India (its prices are set by region: the dollar ones are for the United States and the rest of the world)anyone

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-04.

  1. api.uchecker.net/docs
  2. uchecker.net/
  3. uchecker.net/docs
  4. uchecker.net/en
  5. uchecker.net/en/docs
  6. uchecker.net/en/terms-of-service
  7. uchecker.net/polzovatelskoe-soglashenie
  8. uchecker.net/publichnaja-oferta

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, not in the answer
  • Place, not in the answer
  • Company, not in the answer
Price
$ per 1,000 emails$0.00
Percall
Billingfree
Aggregators
Aggregatorsnone
Charges
Also pays forfrom the same budget: Verify a list of addresses
Overage
Units caphard
Not found
$ per 1,000$0.00
In their words
Their pitchuChecker checks whether a mailbox actually exists, working down through DNS/MX records, an SMTP connection and provider-specific behaviour. Every address gets one of three values: good if it accepts mail, bad if it does not, or unknown if it could not be determined.
Data
Freshnesslive
What it checksformat, mail servers, mailbox
Keep datano limit
Use dataThe user agrees not to use the Service for sending spam, unlawful mailings, or any other actions contrary to applicable law (Terms of Service, 4), «Пользователю запрещается копировать, распространять, перепродавать, передавать третьим лицам или иным образом использовать материалы Сервиса без разрешения правообладателя» (User Agreement, 5.2)
Plan
Pay₽0
You get100 credits
Enough for100 calls, once
Expiresnever
Rate limit
Concurrentno limit
Batch1
Speed
Answerby polling or webhook
Median6.55 s
The call
You sendemail. Optional: webhook_url, client_type
MethodPOST
Path/api/v1/validate/single
About the plan
PlanFirst 100 addresses free
Who can get itanyone
The 3 fields the plan's answer can hold

email address, status, server response

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