# VerifyEmail.io, free, Free, POST /api/email: Email verification API

> Learn how to verify thousands of email addresses at once using the VerifyEmail.io dashboard or API. Upload CSV files, monitor progress in real time, and download clean results ready for your next campaign.

VerifyEmail.io's email verification API on its Free plan. It costs $0.00 per 1,000 emails. It returns 4 of the 6 key fields we check: Address, Deliverability, Confidence, Company.
The cheapest of the 1,671 priced plans is [treg, top-up from $10](https://datacircle.dev/validate-email-apis/treg/top-up-from-10/llms.txt), at $0.00 per 1,000.

- This page: https://datacircle.dev/validate-email-apis/verifyemail-io/free-free-post-api-email
- Get it: https://verifyemail.io/pricing
- Its API docs: https://verifyemail.io/guides/bulk-verification
- Sold by: VerifyEmail.io (https://verifyemail.io)
- Checked: 2026-10-23

## In the answer

- Completeness: 67%
- Address: ✓
- Deliverability: ✓
- Confidence: ✓
- Company: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Repeat free: never
- Per: result
- Also pays for: Contact Finder API · from the same budget: Email Verification API

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Learn how to verify thousands of email addresses at once using the VerifyEmail.io dashboard or API. Upload CSV files, monitor progress in real time, and download clean results ready for your next campaign.

## Data

- Freshness: live
- Keep data: until termination: upon termination for any reason, you will immediately cease using the Services and delete or otherwise destroy all Licensed Data
- Use data: VerifyEmail.io grants Customer a [...] license [...] to access and use the Services solely in connection with Customer's internal business operations [...] Customer may use the Licensed Data for lawful internal business purposes in accordance with the provisions of these Terms [...] Customer represents, warrants and covenants that Customer will not sell, re-sell, sublicense, distribute, transmit, display, disclose, divulge, reveal, report, publish or transfer the Licensed Data or Services to any third party or reproduce or create derivative works based upon the Licensed Data or Services, or any portion thereof. Customer may not use the Services, or the results therefrom including, without limitation, the Licensed Data, in whole or in part, in the development of any data products or services to be provided to third parties including, without limitation, any list enhancement or data appending service or product [...] All marketing communications used in connection with the Licensed Data shall (i) be devoid of any reference to the source of the recipient's name and address or to any selection criteria or presumed knowledge concerning the intended recipient of such solicitation, (ii) comply with all applicable privacy policies, and (iii) not contain sexually explicit or obscene materials, or materials that are otherwise deemed offensive

## Plan

- Pay: $0
- You get: 100 credits a month
- Enough for: 100 results a month

## Rate limit

- Batch: 1,000,000

## Speed

- Answer: by polling

## The call

- You send: method "upload", file
- Method: POST
- Path: /api/email

## About the plan

- Plan: Free
- Who can get it: business use, 18 or older

## The 8 fields the plan's answer can hold

email address, verdict, confidence score, domain verdict, has suspected bounces, has known bounces, disposable, role address

## VerifyEmail.io's plans (2)

- [VerifyEmail.io, free, Free, POST /api/email](https://datacircle.dev/validate-email-apis/verifyemail-io/free-free-post-api-email/llms.txt): $0.00 per 1,000, 67% complete, live
- [VerifyEmail.io, contact us, Custom, POST /api/email](https://datacircle.dev/validate-email-apis/verifyemail-io/contact-us-custom-post-api-email/llms.txt): 67% complete, live

## VerifyEmail.io's calls (2)

- `POST /api/email`: [VerifyEmail.io, free, Free, POST /api/email](https://datacircle.dev/validate-email-apis/verifyemail-io/free-free-post-api-email/llms.txt)
- `GET /api/email`: [VerifyEmail.io, free, Free, GET /api/email](https://datacircle.dev/validate-email-apis/verifyemail-io/free-free-get-api-email/llms.txt)

## VerifyEmail.io's APIs (1)

- [VerifyEmail.io: email verification API pricing, 2 plans, POST /api/email](https://datacircle.dev/validate-email-apis/verifyemail-io/free-free-post-api-email/llms.txt)

## VerifyEmail.io: email verification API alternatives

- [Enrich.so, free, Free, POST /email-validation](https://datacircle.dev/validate-email-apis/enrich-so/free/llms.txt): $0.00 per 1,000, 50% complete, live
- [GetProspect, free, Free, POST /v2/email-verifications](https://datacircle.dev/validate-email-apis/getprospect/free-free-post-v2-email-verifications/llms.txt): $0.00 per 1,000, 50% complete, live
- [KaijuVerifier, free, Free, POST /api/v1/jobs](https://datacircle.dev/validate-email-apis/kaijuverifier/free-free-post-api-v1-jobs/llms.txt): $0.00 per 1,000, 50% complete, live
- [Neutrino API, free, Free, GET /email-verify](https://datacircle.dev/validate-email-apis/neutrino-api/free-free-get-email-verify/llms.txt): $0.00 per 1,000, 50% 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 2026-10-23.

- https://verifyemail.io/
- https://verifyemail.io/docs/api/authentication
- https://verifyemail.io/docs/api/email-verification
- https://verifyemail.io/docs/api/rate-limits
- https://verifyemail.io/faq
- https://verifyemail.io/guides/api-integration
- https://verifyemail.io/guides/bulk-verification
- https://verifyemail.io/pricing
- https://verifyemail.io/terms