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Qualisend pricing: email verification API, POST /verify

Qualisend's sitellms.txtEmail validation API: 180+ verification providers comparedQualisend: email verification API alternatives

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50% complete: 3 of the 6 key fields we checkSee the 6 fields
$0.00per 1,000 emailsIn our email verification API benchmark, the best plan from Qualisend scores 61.1 out of 100. Qualisend ranks 29th 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: Free one of Qualisend's 18 plans
Call: POST /verify one of Qualisend's 2 calls
API: Email verification API Qualisend's only API

About this item

  • Live. Qualisend checks the email when you call the API.
  • 3 of the 6 key fields we check. Address, Deliverability, Confidence.
  • 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 /verify. You can also send Idempotency-Key. The call returns the answer when the provider is quick. When the provider is slow, the call returns a job. You fetch the answer once the job is done.
  • Who can get it: anyone aged 18 or over. Keep data: no limit. Use data: with conditions.

Qualisend: email verification API alternatives

Qualisend alternatives: every email verification API provider ranked

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

Qualisend, $1,280 monthly, Pro, 1,000,000 credits a month, POST /verifyZuhal, $32 pack, Pay As You Go: 25,000 Credits, POST /bulk/uploadInvalid Bounce, $96 monthlyProofy, $32 pack, Pay-As-You-Go, 25,000 credits, GET /verify/singleCleanMyList, $77 monthly, Verify Growth, POST /v1/jobs
$ per 1,000 emails$1.28$1.28$1.28$1.28$1.283
Completeness50%33%17%33%50%
Billingmonthlypay firstmonthlypay firstmonthly
Pay$1,280$32$96$32$77
Enough for1,000,000 calls a month25,000 results75,000 results a month25,000 calls60,000 results a month
Freshnesslivelivelivelivelive
Who can get itanyone aged 18 or overanyone at least 18 years oldanyoneanyoneanyone

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-05.

  1. qualisend.com/_next/static/chunks/1747-3fb73ff7765c8554.js
  2. qualisend.com/acceptable-use-policy
  3. qualisend.com/developers
  4. qualisend.com/docs
  5. qualisend.com/openapi.yaml
  6. qualisend.com/pricing
  7. qualisend.com/terms-of-service

Product details

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

  • Address
  • Deliverability
  • Confidence
  • 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: Register a bulk job · Get a job · Check available credits · Get webhook signing secret
Overage
Units caphard
Not found
$ per 1,000$0.00
Catch-all
$ per 1,000$0.00
In their words
Their pitchA simple REST API that checks real mailboxes and hands back a clear verdict for every address - one at a time or a million at once.
Data
Freshnesslive
What it checksformat, mail servers, disposable domains, role addresses, mailbox
Keep datano limit
Use dataonly lawful purposes: "You agree to use the services only for lawful purposes and in compliance with these Terms, our Acceptable Use Policy, and all applicable laws and regulations. You agree not to use the services to submit email addresses or lists that you do not have a lawful basis or right to process, [...] to send unsolicited commercial communications (spam) or violate applicable anti-spam laws including CAN-SPAM, GDPR, and CASL, [...] to transfer or share your account with any third party, or to use verification results to facilitate harassment, phishing, fraud, or unlawful contact." Its Acceptable Use Policy: "You may not: Submit email addresses you do not have a lawful basis or right to process, Harvest or collect email addresses without consent, Use purchased or rented email lists, Use verification results to send unsolicited commercial email (spam), Use our Services to enable harassment, doxxing, or unlawful contact, Impersonate others or misrepresent your identity, Interfere with or disrupt our Services or verification infrastructure, Attempt unauthorized access to our systems, Use automated tools to scrape our Services, Resell or redistribute our Services without permission, Violate CAN-SPAM, GDPR, or other applicable regulations." "If you use Qualisend to prepare or clean lists for email campaigns, you must: Obtain proper consent before sending emails, Provide clear unsubscribe mechanisms, Honor opt-out requests promptly (within 10 business days), Include accurate sender information, Comply with anti-spam laws in recipient jurisdictions."
Plan
Pay$0
You get100 credits
Enough for100 calls, once
Expiresnever
Rate limit
Per second1
Batch1
Speed
Answerin the call or by polling
Median1.52 s
The call
You sendemail. Optional: Idempotency-Key
MethodPOST
Path/verify
About the plan
PlanFree
Who can get itanyone aged 18 or over
The 16 fields the plan's answer can hold

job ID, email ID, SMTP probe queued, email address, status, score, free mail, disposable, role, catch-all, full mailbox, disabled, did you mean, SMTP, reason, detail

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