# Mailrook, free, forever, POST /v1/validate/batch: Email validation API

> Process multiple emails in a single request for efficient verification.

Mailrook's email validation API on its Free forever plan, $0.00 per 1,000 emails. 2 of the 6 key fields: Address, Its check.

- This page: https://datacircle.dev/validate-email-apis/mailrook/free-forever-post-v1-validate-batch
- Get it: https://mailrook.com
- Its API docs: https://mailrook.com/docs/api
- Sold by: Mailrook (https://mailrook.com)
- Checked: 2026-10-20

## In the answer

- Completeness: 33%
- Address: ✓
- Its check: ✓

## Price

- $ per 1,000: $0.00
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Per: result
- Also pays for: from the same budget: Validate a single email · Enrich a domain or email · Upload a file for batch validation

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Process multiple emails in a single request for efficient verification.

## Data

- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: $0
- You get: 25 credits a day
- Enough for: 25 results a day
- Expires: resets daily at midnight UTC

## Speed

- Answer: by polling

## The call

- You send: emails
- Method: POST
- Path: /v1/validate/batch

## About the plan

- Plan: Free forever
- Who can get it: anyone

## The 10 fields the plan's answer can hold

email, valid format, valid domain, deliverable, not catch-all, not generic address, not disposable, not free email provider, not university domain, protection level

## Mailrook's plans (6)

- [Mailrook, free, forever, POST /v1/validate/batch](https://datacircle.dev/validate-email-apis/mailrook/free-forever-post-v1-validate-batch/llms.txt): $0.00 per 1,000, 33% complete
- [Mailrook, $39 pack, 10,000 credits, POST /v1/validate/batch](https://datacircle.dev/validate-email-apis/mailrook/39-pack-10000-credits-post-v1-validate-batch/llms.txt): $3.90 per 1,000, 33% complete
- [Mailrook, $29 monthly, Starter, POST /v1/validate/batch](https://datacircle.dev/validate-email-apis/mailrook/29-monthly-starter-post-v1-validate-batch/llms.txt): $3.867 per 1,000, 33% complete
- [Mailrook, $79 monthly, Business, POST /v1/validate/batch](https://datacircle.dev/validate-email-apis/mailrook/79-monthly-business-post-v1-validate-batch/llms.txt): $1.975 per 1,000, 33% complete
- [Mailrook, $199 monthly, Scale, POST /v1/validate/batch](https://datacircle.dev/validate-email-apis/mailrook/199-monthly-scale-post-v1-validate-batch/llms.txt): $1.327 per 1,000, 33% complete
- [Mailrook, contact us, Talk to us, POST /v1/validate/batch](https://datacircle.dev/validate-email-apis/mailrook/contact-us-talk-to-us-post-v1-validate-batch/llms.txt): 33% complete

## Mailrook's calls (3)

- `POST /v1/validate/batch`: [Mailrook, free, forever, POST /v1/validate/batch](https://datacircle.dev/validate-email-apis/mailrook/free-forever-post-v1-validate-batch/llms.txt)
- `POST /v1/validate/batch/upload`: [Mailrook, free, forever, POST /v1/validate/batch/upload](https://datacircle.dev/validate-email-apis/mailrook/free-forever-post-v1-validate-batch-upload/llms.txt)
- `GET /v1/validate/{email}`: [Mailrook, free, forever, GET /v1/validate/{email}](https://datacircle.dev/validate-email-apis/mailrook/free-forever-get-v1-validate-email/llms.txt)

## Similar plans of other providers

- [Mails.so, free](https://datacircle.dev/validate-email-apis/mails-so/free/llms.txt): $0.00 per 1,000, 67% complete
- [MailSift, free, Free, GET /verify, Verify one email](https://datacircle.dev/validate-email-apis/mailsift/free-free-get-verify-verify-one-email/llms.txt): $0.00 per 1,000, 67% complete, live
- [MailValid, free, Free, POST /api/v1/verify/bulk](https://datacircle.dev/validate-email-apis/mailvalid/free-free-post-api-v1-verify-bulk/llms.txt): $0.00 per 1,000, 67% complete, 30 days
- [MailsGuard, free, Free, POST /api/v1/verify](https://datacircle.dev/validate-email-apis/mailsguard/free-free-post-api-v1-verify/llms.txt): $0.00 per 1,000, 50% complete

## 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.

- https://mailrook.com
- https://mailrook.com/docs/api
- https://mailrook.com/domain-enrichment-api
- https://mailrook.com/email-validation-api
- https://mailrook.com/legal/privacy
- https://mailrook.com/legal/terms