# VeriMailX, free, POST /validate: Email verification API

> Complete guide to integrate email validation into your application using our powerful REST API

VeriMailX's Free plan for the email verification API costs $0.00 per 1,000 emails. We check each provider's docs for 6 fields. VeriMailX's docs list 3: Address, Deliverability, Confidence.
In [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt), the best plan from VeriMailX scores 46.5 out of 100. VeriMailX ranks 114th of 249 providers.
This plan is free. We rank 4,721 plans for email verification APIs by price. Half the plans cost $2.00 or less per 1,000 emails. [734 email verification API plans on our price sheet are free.](https://datacircle.dev/best-email-verification-api.txt) [pingutil's free plan](https://datacircle.dev/validate-email-apis/pingutil/free-api-key-post-v1-verify/llms.txt) scores highest of the free plans in our benchmark, at 82.3 out of 100.
[PayPerQ's pay-as-you-go plan](https://datacircle.dev/validate-email-apis/payperq/pay-as-you-go-pay-per-request-with-l402-post-api-minerva-validate-emails/llms.txt) costs the least for 10,000 emails a month: $0.06.
[Disify's $9 monthly plan (/email)](https://datacircle.dev/validate-email-apis/disify/9-monthly-starter-post-email/llms.txt) covers any number of emails.
[Validemail.co](https://datacircle.dev/validate-email-apis/validemail-co/9-90-monthly-9-90-month-get-api-v1-validate/llms.txt), [pingutil](https://datacircle.dev/validate-email-apis/pingutil/free-api-key-post-v1-verify/llms.txt) and [looot](https://datacircle.dev/validate-email-apis/looot/top-up/llms.txt) are the best email verification API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-email-apis/verimailx/free-post-validate
- [Email validation API: best verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://www.verimailx.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `POST https://api.verimailx.com/validate`
- API key: with the plan, on https://www.verimailx.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Its API docs: https://www.verimailx.com/documentation?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Sold by: VeriMailX (https://www.verimailx.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-11

## In the answer

- Completeness: 50%
- Address: ✓
- Deliverability: ✓
- Confidence: ✓

## Price

- $ per 1,000 emails: $0.00
- Per: call
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000 calls that find nothing: $0.00

## Catch-all

- $ per 1,000 emails at catch-all domains: $0.00

## In their words

- Their pitch: Complete guide to integrate email validation into your application using our powerful REST API

## Data

- Freshness: live
- What it checks: format, mail servers, disposable domains, role addresses, mailbox
- Keep data: no limit
- Use data: You agree not to: Use the service for any illegal purposes, Attempt to reverse engineer or compromise our systems, Exceed rate limits or abuse the service, Share your API keys with unauthorized parties, Use the service to validate email addresses without proper consent, Resell or redistribute the service without authorization

## Plan

- Pay: $0
- You get: 100 credits
- Enough for: 100 calls, once

## Rate limit

- Per second: 1
- Batch: 1

## Speed

- Answer: in the call
- Median: 7.59 s

## The call

- You send: email
- Method: POST
- Path: /validate

## About the plan

- Plan: Free
- Who can get it: anyone, one free account per person or legal entity

## The 11 fields the plan's answer can hold

email, result, deliverability score, syntax valid, DNS valid, MX valid, SMTP valid, disposable, role-based, MX hosts, credits remaining

## VeriMailX's plans (15)

- [VeriMailX, free, POST /validate](https://datacircle.dev/validate-email-apis/verimailx/free-post-validate/llms.txt): $0.00 per 1,000, 50% complete, live
- [VeriMailX, $25 pack, 10K credits, POST /validate](https://datacircle.dev/validate-email-apis/verimailx/25-pack-10k-credits-post-validate/llms.txt): $2.50 per 1,000, 50% complete, live
- [VeriMailX, $79 pack, Tier 1, POST /validate](https://datacircle.dev/validate-email-apis/verimailx/79-pack-tier-1-post-validate/llms.txt): $0.216 per 1,000, 50% complete, live
- [VeriMailX, $99 pack, 50K credits, POST /validate](https://datacircle.dev/validate-email-apis/verimailx/99-pack-50k-credits-post-validate/llms.txt): $1.98 per 1,000, 50% complete, live
- [VeriMailX, $158 pack, Tier 2, POST /validate](https://datacircle.dev/validate-email-apis/verimailx/158-pack-tier-2-post-validate/llms.txt): $0.18 per 1,000, 50% complete, live
- [VeriMailX, $180 pack, 100K credits, POST /validate](https://datacircle.dev/validate-email-apis/verimailx/180-pack-100k-credits-post-validate/llms.txt): $1.80 per 1,000, 50% complete, live
- [VeriMailX, $237 pack, Tier 3, POST /validate](https://datacircle.dev/validate-email-apis/verimailx/237-pack-tier-3-post-validate/llms.txt): $0.155 per 1,000, 50% complete, live
- [VeriMailX, $316 pack, Tier 4, POST /validate](https://datacircle.dev/validate-email-apis/verimailx/316-pack-tier-4-post-validate/llms.txt): $0.135 per 1,000, 50% complete, live
- [VeriMailX, $395 pack, Tier 5, POST /validate](https://datacircle.dev/validate-email-apis/verimailx/395-pack-tier-5-post-validate/llms.txt): $0.12 per 1,000, 50% complete, live
- [VeriMailX, $750 pack, 500K credits, POST /validate](https://datacircle.dev/validate-email-apis/verimailx/750-pack-500k-credits-post-validate/llms.txt): $1.50 per 1,000, 50% complete, live
- [VeriMailX, $1,200 pack, 1M credits, POST /validate](https://datacircle.dev/validate-email-apis/verimailx/1200-pack-1m-credits-post-validate/llms.txt): $1.20 per 1,000, 50% complete, live
- [VeriMailX, $19 monthly, Starter, POST /validate](https://datacircle.dev/validate-email-apis/verimailx/19-monthly-starter-post-validate/llms.txt): $1.90 per 1,000, 50% complete, live
- [VeriMailX, $49 monthly, Growth, POST /validate](https://datacircle.dev/validate-email-apis/verimailx/49-monthly-growth-post-validate/llms.txt): $1.633 per 1,000, 50% complete, live
- [VeriMailX, $149 monthly, Scale, POST /validate](https://datacircle.dev/validate-email-apis/verimailx/149-monthly-scale-post-validate/llms.txt): $1.242 per 1,000, 50% complete, live
- [VeriMailX, contact us, Enterprise, POST /validate](https://datacircle.dev/validate-email-apis/verimailx/contact-us-enterprise-post-validate/llms.txt): 50% complete, live

## VeriMailX's calls for this API (2)

- `POST /bulk-validate`: [VeriMailX, free, POST /bulk-validate](https://datacircle.dev/validate-email-apis/verimailx/free-post-bulk-validate/llms.txt)
- `POST /validate`: [VeriMailX, free, POST /validate](https://datacircle.dev/validate-email-apis/verimailx/free-post-validate/llms.txt)

## VeriMailX's APIs (2)

- [VeriMailX Email finder API pricing, 15 plans, POST /api/public/v1/find-email/batch](https://datacircle.dev/find-email-apis/verimailx/free-post-api-public-v1-find-email-batch/llms.txt)
- [VeriMailX Email finder API pricing, 15 plans, POST /api/public/v1/find-email](https://datacircle.dev/find-email-apis/verimailx/free-post-api-public-v1-find-email/llms.txt)
- [VeriMailX Email verification API pricing, 15 plans, POST /validate](https://datacircle.dev/validate-email-apis/verimailx/free-post-validate/llms.txt)

## VeriMailX: email verification API alternatives

[VeriMailX alternatives: every email verification API provider ranked](https://datacircle.dev/verimailx-alternatives.txt)

We list VeriMailX's cheapest paid plan first. Next we list other providers' plans closest to VeriMailX in price per 1,000 emails. Each plan in the list gives live data.

- [VeriMailX, $395 pack, Tier 5, POST /validate](https://datacircle.dev/validate-email-apis/verimailx/395-pack-tier-5-post-validate/llms.txt): $0.12 per 1,000, 50% complete, live
- [EmailZeno, $132 yearly, Normal, POST /v1/verify](https://datacircle.dev/validate-email-apis/emailzeno/132-yearly-normal-post-v1-verify/llms.txt): $0.11 per 1,000, 67% complete, live
- [Kanta, $1,430.40 yearly, Kanta Verify Volume (annual), POST /verify/bulk](https://datacircle.dev/validate-email-apis/kanta/1430-40-yearly-kanta-verify-volume-annual-post-verify-bulk/llms.txt): $0.119 per 1,000, 33% complete, live
- [Listclean, $625 pack, 5M Credits, GET /verify/email/{email}](https://datacircle.dev/validate-email-apis/listclean/625-pack-5m-credits-get-verify-email-email/llms.txt): $0.125 per 1,000, 33% complete, live
- [ProWebLook, $15,352.32 yearly](https://datacircle.dev/validate-email-apis/proweblook/15352-32-yearly/llms.txt): $0.128 per 1,000, 33% complete, live

## Sources

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

- https://www.verimailx.com/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://www.verimailx.com/developers?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://www.verimailx.com/documentation?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://www.verimailx.com/email-verification-guide?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://www.verimailx.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://www.verimailx.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing