WarmySender pricing: email verification API
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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 WarmySender scores 69.3 out of 100. WarmySender ranks 12th of 197 providers.This plan is free. We rank 3,886 plans for email verification APIs by price. Half the plans cost $1.998 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 (/
Plan: Free daily check one of WarmySender's 17 plans
- FreeFree daily check$0.00 per 1,000
- $29 pack, 15,000 verification credits15,000 verification credits$1.933 per 1,000
- $79 pack, 100,000 verification credits100,000 verification credits$0.79 per 1,000
- $158 pack, 220,000 verification credits220,000 verification credits$0.718 per 1,000
- $237 pack, 360,000 verification credits360,000 verification credits$0.658 per 1,000
- $316 pack, 520,000 verification credits520,000 verification credits$0.608 per 1,000
- $395 pack, 700,000 verification credits700,000 verification credits$0.564 per 1,000
- $499 pack, 1,000,000 verification credits1,000,000 verification credits$0.499 per 1,000
- $19 monthly, Pro MonthlyPro Monthly$19.192 per 1,000
- $69.99 monthly, Enterprise MonthlyEnterprise Monthly$2.333 per 1,000
- $199 monthly, Ultimate MonthlyUltimate Monthly$3.317 per 1,000
- $102.60 yearly, Pro Annual (55% off)Pro Annual (55% off)$8.636 per 1,000
- $205.20 yearly, Pro 3-Year (70% off)Pro 3-Year (70% off)$5.758 per 1,000
- $377.88 yearly, Enterprise Annual (55% off)Enterprise Annual (55% off)$1.05 per 1,000
- $756 yearly, Enterprise 3-Year (70% off)Enterprise 3-Year (70% off)$0.70 per 1,000
- $1,074.60 yearly, Ultimate Annual (55% off)Ultimate Annual (55% off)$1.492 per 1,000
- $2,149.20 yearly, Ultimate 3-Year (70% off)Ultimate 3-Year (70% off)$0.995 per 1,000
Call:
POST / one of WarmySender's 2 callsPOST /Free$0.00 per 1,000verification/ verify POST /$29 pack, 15,000 verification credits$1.933 per 1,000verification/ batches
API: Email verification API WarmySender's only API
About this item
- Live. WarmySender checks the email when you call the API.
- 2 of the 6 key fields we check. Address, Deliverability.
- Nothing to pay. You get 1 credit a day, enough for 1 call. Calls stop once your credits run out. Unused credits expire at the end of each day, no carry over.
- One call. You send
emailtoPOST /. You can also send theverification/ verify Idempotency-Keyheader. The call returns whether the address takes mail. - Anyone can get it. Keep data: no API terms. Use data: no API terms.
WarmySender: email verification API alternatives
WarmySender alternatives: every email verification API provider ranked
The table starts with WarmySender's cheapest paid plan. Next come plans from other providers with the price per 1,000 emails closest to WarmySender's. Each plan in the table gives live data.
| WarmySender, $499 pack, 1,000,000 verification credits, POST /verification/verify | Bounceless, $499 monthly, Scale: 1,000,000 credits per month, POST /v1/requests, Create a batch (emails) | MailTester, $499 pack | VeriMails, $499 pack, 1,000,000 credits, POST /api/verify/single | EmailMarker, $999 pack, 2,000,000 credits, POST /api/upload | |
|---|---|---|---|---|---|
| $ per 1,000 emails | $0.499 | $0.499 | $0.499 | $0.499 | $0.50 |
| Completeness | 33% | 50% | 50% | 67% | 17% |
| Billing | pay first | monthly | pay first | pay first | pay first |
| Pay | $499 | $499 | $499 | $499 | $999 |
| Enough for | 1,000,000 calls | 1,000,000 results a month | 1,000,000 calls | 1,000,000 calls | 2,000,000 results |
| Freshness | live | live | live | live | live |
| Who can get it | anyone | business customers outside the European Economic Area and the UK | anyone | anyone | individuals and entities at least 16 years old with the legal capacity to enter into binding agreements |
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.
- warmysender.com/api/v1/openapi.json
- warmysender.com/docs/integrations
- warmysender.com/documentation/email-verification-credits-and-daily-limits
- warmysender.com/documentation/email-verification-limits-and-credits
- warmysender.com/email-verifier
- warmysender.com/llms.txt
- warmysender.com/mcp
- warmysender.com/pricing
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
| $ per 1,000 emails | $0.00 |
|---|---|
| Per | call |
| Billing | free |
| Aggregators | none |
|---|
| Also pays for | nothing else |
|---|
| Units cap | hard |
|---|
| $ per 1,000 | $0.00 |
|---|
| $ per 1,000 | $0.00 |
|---|
| Their pitch | Every plan includes real-time email verification, so a list is cleaned before it is ever sent to. Verify a single address or upload a list, and each address comes back Valid, Risky, Invalid or Unknown — Unknown results are always free. |
|---|
| Freshness | live |
|---|---|
| What it checks | mail servers, mailbox |
| Keep data | no API terms |
| Use data | no API terms |
| Pay | $0 |
|---|---|
| You get | 1 credit a day |
| Enough for | 1 call a day |
| Expires | end of each day, no carry over |
| Per day | 1 |
|---|---|
| Per second | 0.33 |
| Batch | 1 |
| Answer | in the call |
|---|---|
| Median | 1.65 s |
| You send | email. Optional: Idempotency-Key header |
|---|---|
| Method | POST |
| Path | /verification/verify |
| Plan | Free daily check |
|---|---|
| Who can get it | anyone |
The 6 fields the plan's answer can hold
email address, status, reason, catch-all, MX host, request ID