# ProWebLook, free: Email verification API

> Verify email syntax and mailbox deliverability in real time without sending an email.

ProWebLook's email verification API on its Free signup credits plan. It costs $0.00 per 1,000 emails. It returns 2 of the 6 key fields we check: Address, Deliverability.
The cheapest of the 1,849 plans we rank by price is [treg, top-up from $10](https://datacircle.dev/validate-email-apis/treg/top-up-from-10/llms.txt). treg asks one provider after another until one answers. treg costs $0.00 per 1,000 emails on average. You pay $26.95 per 1,000 emails when no provider answers.

- This page: https://datacircle.dev/validate-email-apis/proweblook/free
- [Best email verification API in 2026](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://proweblook.com/pricing
- Its API docs: https://docs.proweblook.com/api-reference/email-verification
- Sold by: ProWebLook (https://proweblook.com)
- Checked: 2026-10-27

## In the answer

- Completeness: 33%
- Address: ✓
- Deliverability: ✓

## 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: $0.00

## Catch-all

- $ per 1,000: $0.00

## In their words

- Their pitch: Verify email syntax and mailbox deliverability in real time without sending an email.

## Data

- Freshness: live
- What it checks: format, mail servers, mailbox
- Keep data: no limit
- Use data: However, unless we expressly state otherwise, your rights do not include: (i) publicly performing or publicly displaying the Service, (ii) modifying or otherwise making any derivative uses of the Service or any portion thereof, (iii) using any data mining, robots or similar data gathering or extraction methods, (iv) downloading (other than page caching) of any portion of the Service or any information contained therein, (v) reverse engineering or accessing the Service in order to build a competitive product or service, or (vi) using the Service other than for its intended purposes.

## Plan

- Pay: $0
- You get: 50 credits
- Enough for: 50 calls, once
- Expires: never

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: email
- Method: GET
- Path: /emailvalidation

## About the plan

- Plan: Free signup credits
- Who can get it: anyone

## The 7 fields the plan's answer can hold

credits remaining, status, email address, valid format, mailbox exists, verdict, reason code

## ProWebLook's plans (16)

- [ProWebLook, free](https://datacircle.dev/validate-email-apis/proweblook/free/llms.txt): $0.00 per 1,000, 33% complete, live
- [ProWebLook, $29 pack](https://datacircle.dev/validate-email-apis/proweblook/29-pack/llms.txt): $2.90 per 1,000, 33% complete, live
- [ProWebLook, $119 pack](https://datacircle.dev/validate-email-apis/proweblook/119-pack/llms.txt): $1.19 per 1,000, 33% complete, live
- [ProWebLook, $349 pack](https://datacircle.dev/validate-email-apis/proweblook/349-pack/llms.txt): $0.349 per 1,000, 33% complete, live
- [ProWebLook, $1,999 pack](https://datacircle.dev/validate-email-apis/proweblook/1999-pack/llms.txt): $0.20 per 1,000, 33% complete, live
- [ProWebLook, $8,499 pack](https://datacircle.dev/validate-email-apis/proweblook/8499-pack/llms.txt): $0.17 per 1,000, 33% complete, live
- [ProWebLook, $23.20 monthly](https://datacircle.dev/validate-email-apis/proweblook/23-20-monthly/llms.txt): $2.32 per 1,000, 33% complete, live
- [ProWebLook, $95.20 monthly](https://datacircle.dev/validate-email-apis/proweblook/95-20-monthly/llms.txt): $0.952 per 1,000, 33% complete, live
- [ProWebLook, $279.20 monthly](https://datacircle.dev/validate-email-apis/proweblook/279-20-monthly/llms.txt): $0.279 per 1,000, 33% complete, live
- [ProWebLook, $1,599.20 monthly](https://datacircle.dev/validate-email-apis/proweblook/1599-20-monthly/llms.txt): $0.16 per 1,000, 33% complete, live
- [ProWebLook, $6,799.20 monthly](https://datacircle.dev/validate-email-apis/proweblook/6799-20-monthly/llms.txt): $0.136 per 1,000, 33% complete, live
- [ProWebLook, $222.72 yearly](https://datacircle.dev/validate-email-apis/proweblook/222-72-yearly/llms.txt): $1.856 per 1,000, 33% complete, live
- [ProWebLook, $913.92 yearly](https://datacircle.dev/validate-email-apis/proweblook/913-92-yearly/llms.txt): $0.762 per 1,000, 33% complete, live
- [ProWebLook, $2,680.32 yearly](https://datacircle.dev/validate-email-apis/proweblook/2680-32-yearly/llms.txt): $0.223 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
- [ProWebLook, $65,272.32 yearly](https://datacircle.dev/validate-email-apis/proweblook/65272-32-yearly/llms.txt): $0.109 per 1,000, 33% complete, live

## ProWebLook's calls for this API (1)

- `GET /emailvalidation`: [ProWebLook, free](https://datacircle.dev/validate-email-apis/proweblook/free/llms.txt)

## ProWebLook's APIs (3)

- [ProWebLook: LinkedIn post details API pricing, 16 plans](https://datacircle.dev/linkedin-post-details-apis/proweblook/free/llms.txt)
- [ProWebLook: email verification API pricing, 16 plans](https://datacircle.dev/validate-email-apis/proweblook/free/llms.txt)
- [ProWebLook: phone validation API pricing, 31 plans, POST /wavalidation/batch](https://datacircle.dev/validate-phone-apis/proweblook/free-signup-credits-post-wavalidation-batch/llms.txt)
- [ProWebLook: phone validation API pricing, 31 plans, GET /wavalidation](https://datacircle.dev/validate-phone-apis/proweblook/free-signup-credits-get-wavalidation/llms.txt)

## ProWebLook: email verification API alternatives

- [Mailsfinder, $19.99 monthly, Growth, POST /email/verifyEmail](https://datacircle.dev/validate-email-apis/mailsfinder/19-99-monthly-growth-post-email-verifyemail/llms.txt): $0.10 per 1,000, 50% 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
- [VerifySwift, $2,499.99 monthly, Daily Credits 600,000 a day](https://datacircle.dev/validate-email-apis/verifyswift/2499-99-monthly-daily-credits-600000-a-day/llms.txt): $0.139 per 1,000, 50% complete, live
- [BillionVerify, $1,680 yearly, Ultimate, POST /verify/bulk](https://datacircle.dev/validate-email-apis/billionverify/1680-yearly-ultimate-post-verify-bulk/llms.txt): $0.14 per 1,000, 67% 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 2026-10-27.

- https://docs.proweblook.com/api-reference/email-verification.md
- https://docs.proweblook.com/introduction.md
- https://proweblook.com/email-verifier
- https://proweblook.com/generic/terms_conditions
- https://proweblook.com/linkedin-scraper
- https://proweblook.com/openapi.json
- https://proweblook.com/pricing