# Sweep Emails, free: Email verification API

> Sweep Emails API verifies email validity and detects disposable providers in real-time, giving you clean data, reduced fraud, and higher conversion rates.

Sweep Emails's email verification API on its Free plan. It costs $0.00 per 1,000 emails. It returns 2 of the 6 key fields we check: Address, Deliverability.
We rank 2,467 plans by price. [treg's top-up from $10](https://datacircle.dev/validate-email-apis/treg/top-up-from-10/llms.txt) costs the least per 1,000 emails: $0.00 on average. treg asks one provider after another until one answers. You pay $26.95 per 1,000 emails when no provider answers.
[Enrich.so](https://datacircle.dev/validate-email-apis/enrich-so/149-monthly/llms.txt), [GetProspect](https://datacircle.dev/validate-email-apis/getprospect/369-pack/llms.txt) and [treg](https://datacircle.dev/validate-email-apis/treg/top-up-from-10/llms.txt) are the best email verification API providers in our benchmark.

- This page: https://datacircle.dev/validate-email-apis/sweep-emails/free
- [Best email verification API in 2026](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://sweepemails.com/#pricing
- Request: `POST https://api.sweepemails.com/v1/check`
- API key: with the plan, on https://sweepemails.com/#pricing
- Its API docs: https://sweepemails.com/#docs
- Sold by: Sweep Emails (https://sweepemails.com)
- Checked: 2026-10-23

## 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

## In their words

- Their pitch: Sweep Emails API verifies email validity and detects disposable providers in real-time, giving you clean data, reduced fraud, and higher conversion rates.

## Data

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

## Plan

- Pay: $0

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: email, Content-Type header "application/json"
- Method: POST
- Path: /v1/check

## About the plan

- Plan: Free
- Who can get it: anyone

## The 4 fields the plan's answer can hold

code, email address, disposable, disposable provider

## Sweep Emails's plans (3)

- [Sweep Emails, free](https://datacircle.dev/validate-email-apis/sweep-emails/free/llms.txt): $0.00 per 1,000, 33% complete, stored
- [Sweep Emails, $4.99 monthly](https://datacircle.dev/validate-email-apis/sweep-emails/4-99-monthly/llms.txt): $2.626 per 1,000, 33% complete, stored
- [Sweep Emails, $11.99 monthly](https://datacircle.dev/validate-email-apis/sweep-emails/11-99-monthly/llms.txt): $1.845 per 1,000, 33% complete, stored

## Sweep Emails's calls (1)

- `POST /v1/check`: [Sweep Emails, free](https://datacircle.dev/validate-email-apis/sweep-emails/free/llms.txt)

## Sweep Emails's APIs (1)

- [Sweep Emails: email verification API pricing, 3 plans](https://datacircle.dev/validate-email-apis/sweep-emails/free/llms.txt)

## Sweep Emails: email verification API alternatives

- [KaijuVerifier, $899 pack, 500,000 Credits, POST /api/v1/verify-single, Verify a single email (authenticated)](https://datacircle.dev/validate-email-apis/kaijuverifier/899-pack-500000-credits-post-api-v1-verify-single-verify-a-single-email-authenticated/llms.txt): $1.798 per 1,000, 50% complete, stored (DNS valid, MX count, MX providers, MX grade: live)
- [ContactLint, $9 pack, Credit pack 5,000, POST /v1/email/validate/batch](https://datacircle.dev/validate-email-apis/contactlint/9-pack-credit-pack-5000-post-v1-email-validate-batch/llms.txt): $1.80 per 1,000, 50% complete, stored
- [NexMailPro, $9 pack, Starter Top-Up, POST /verify/email](https://datacircle.dev/validate-email-apis/nexmailpro/9-pack-starter-top-up-post-verify-email/llms.txt): $1.80 per 1,000, 50% complete, stored
- [IsItDisposable, $19 monthly, Starter, POST /v1/check](https://datacircle.dev/validate-email-apis/isitdisposable/19-monthly-starter-post-v1-check/llms.txt): $1.90 per 1,000, 50% complete, stored

## 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://sweepemails.com