# Sniffmail, free: Email validation API

> Reduce bounce rates, increase successful deliveries, block fake signups, and protect your sender reputation with a simple API.

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

- This page: https://datacircle.dev/validate-email-apis/sniffmail/free
- Get it: https://sniffmail.io/pricing
- Its API docs: https://sniffmail.io/docs#verify-email
- Sold by: Sniffmail (https://sniffmail.io)
- 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: call
- Also pays for: nothing else

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Reduce bounce rates, increase successful deliveries, block fake signups, and protect your sender reputation with a simple API.

## Data

- Keep data: no limit
- Use data: You agree to use the API only for lawful purposes and in accordance with these Terms. [...] You must not: Share your API key with third parties, Attempt to circumvent rate limits or usage quotas, Use the Service for spamming, phishing, or other malicious purposes, Reverse engineer or attempt to extract the source code of the Service, Resell or redistribute the Service without authorization

## Plan

- Pay: $0
- You get: 500 credits a month
- Enough for: 500 calls a month
- Expires: at renewal: unused verifications do not roll over

## Rate limit

- Per second: 0.17
- Batch: 1

## Speed

- Answer: in the call

## The call

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

## About the plan

- Plan: Free
- Who can get it: anyone

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

email, is valid, is disposable, MX valid, reason, error, error message

## Sniffmail's plans (12)

- [Sniffmail, free](https://datacircle.dev/validate-email-apis/sniffmail/free/llms.txt): $0.00 per 1,000, 33% complete
- [Sniffmail, $10 pack, Small Pack, POST /verify](https://datacircle.dev/validate-email-apis/sniffmail/10-pack-small-pack-post-verify/llms.txt): $3.333 per 1,000, 33% complete
- [Sniffmail, $25 pack, Medium Pack, POST /verify](https://datacircle.dev/validate-email-apis/sniffmail/25-pack-medium-pack-post-verify/llms.txt): $2.50 per 1,000, 33% complete
- [Sniffmail, $50 pack, Large Pack, POST /verify](https://datacircle.dev/validate-email-apis/sniffmail/50-pack-large-pack-post-verify/llms.txt): $2.00 per 1,000, 33% complete
- [Sniffmail, $100 pack, XL Pack, POST /verify](https://datacircle.dev/validate-email-apis/sniffmail/100-pack-xl-pack-post-verify/llms.txt): $1.667 per 1,000, 33% complete
- [Sniffmail, $500 pack, Enterprise Pack, POST /verify](https://datacircle.dev/validate-email-apis/sniffmail/500-pack-enterprise-pack-post-verify/llms.txt): $1.00 per 1,000, 33% complete
- [Sniffmail, $29 monthly](https://datacircle.dev/validate-email-apis/sniffmail/29-monthly/llms.txt): $1.16 per 1,000, 33% complete
- [Sniffmail, $79 monthly, Pro, POST /verify](https://datacircle.dev/validate-email-apis/sniffmail/79-monthly-pro-post-verify/llms.txt): $0.79 per 1,000, 33% complete
- [Sniffmail, $149 monthly, Scale, POST /verify](https://datacircle.dev/validate-email-apis/sniffmail/149-monthly-scale-post-verify/llms.txt): $0.745 per 1,000, 33% complete
- [Sniffmail, $290 yearly](https://datacircle.dev/validate-email-apis/sniffmail/290-yearly/llms.txt): $0.967 per 1,000, 33% complete
- [Sniffmail, $790 yearly, Pro, POST /verify](https://datacircle.dev/validate-email-apis/sniffmail/790-yearly-pro-post-verify/llms.txt): $0.658 per 1,000, 33% complete
- [Sniffmail, $1,490 yearly, Scale, POST /verify](https://datacircle.dev/validate-email-apis/sniffmail/1490-yearly-scale-post-verify/llms.txt): $0.621 per 1,000, 33% complete

## Sniffmail's calls (2)

- `POST /verify`: [Sniffmail, free](https://datacircle.dev/validate-email-apis/sniffmail/free/llms.txt)
- `POST /jobs`: [Sniffmail, $10 pack, Small Pack, POST /jobs](https://datacircle.dev/validate-email-apis/sniffmail/10-pack-small-pack-post-jobs/llms.txt)

## Similar plans of other providers

- [Truelist, free, Free, POST /api/v1/batches](https://datacircle.dev/validate-email-apis/truelist/free-free-post-api-v1-batches/llms.txt): $0.00 per 1,000, 50% complete, live
- [Verifalia, free](https://datacircle.dev/validate-email-apis/verifalia/free/llms.txt): $0.00 per 1,000, 50% complete, live
- [Verifly, free, 100 credits, GET /verify](https://datacircle.dev/validate-email-apis/verifly/free-100-credits-get-verify/llms.txt): $0.00 per 1,000, 50% complete, live
- [treg, free](https://datacircle.dev/validate-email-apis/treg/free/llms.txt): $0.00 per 1,000, 33% 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://sniffmail.io
- https://sniffmail.io/docs
- https://sniffmail.io/email-verification-api
- https://sniffmail.io/pricing
- https://sniffmail.io/privacy
- https://sniffmail.io/terms