# ipv4.fr, free: Email verification API

> Validate email addresses: syntax, MX records, SMTP verification, disposable detection.

ipv4.fr's Free plan for the email verification API costs $0.00 per 1,000 emails. ipv4.fr's docs list 2 of the 6 fields on our checklist: Address, Deliverability.
In [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt), the best plan from ipv4.fr scores 56.3 out of 100. ipv4.fr ranks 59th of 208 providers.
This plan is free. We rank 4,039 plans for email verification APIs by price. Half the plans cost $1.999 per 1,000 emails or less. [See the best free email verification API plan.](https://datacircle.dev/best-email-verification-api.txt)
[treg's top-up from $10](https://datacircle.dev/validate-email-apis/treg/top-up-from-10/llms.txt) is the cheapest paid plan per 1,000 emails: $0.00 on average. treg asks one provider after another until one answers. You pay $68.365 per 1,000 emails when no provider answers.
[Disify's $9 monthly plan (/email)](https://datacircle.dev/validate-email-apis/disify/9-monthly-starter-post-email/llms.txt) covers any number of emails. Disify's $9 monthly plan costs less up front than treg's top-up from $10.
[pingutil](https://datacircle.dev/validate-email-apis/pingutil/free-api-key-post-v1-verify/llms.txt), [MailTester Ninja](https://datacircle.dev/validate-email-apis/mailtester-ninja/23-99-monthly/llms.txt) and [Giggal](https://datacircle.dev/validate-email-apis/giggal/39-pack-50000-credits-post-v1-verify/llms.txt) are the best email verification API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-email-apis/ipv4-fr/free
- [Email validation API: 200+ verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://ipv4.fr/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `GET https://api.ipv4.fr/api/v1/email/{email}`
- API key: with the plan, on https://ipv4.fr/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Its API docs: https://ipv4.fr/docs.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Sold by: ipv4.fr (https://ipv4.fr?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-07

## 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: Create uptime monitor · from the same budget: IP address info · DNS lookup · SSL certificate check · TCP port check · HTTP response headers · WHOIS lookup · IP geolocation · IP blacklist check · Subnet calculator

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Validate email addresses: syntax, MX records, SMTP verification, disposable detection.

## Data

- Freshness: live
- What it checks: format, mail servers, disposable domains, role addresses, mailbox
- Keep data: no limit
- Use data: Vous vous engagez à ne l'utiliser que sur des domaines, adresses et systèmes que vous êtes autorisé à analyser, et sans abus.

## Plan

- Pay: €0
- You get: 25 requests a day
- Enough for: 25 calls a day

## Rate limit

- Per day: 25
- Batch: 1

## Speed

- Answer: in the call
- Median: 1.73 s

## The call

- You send: email
- Method: GET
- Path: /api/v1/email/{email}

## About the plan

- Plan: Free
- Who can get it: anyone with an email address, no credit card required

## The 9 fields the plan's answer can hold

email address, valid, syntax check, role address check, disposable check, MX records check, MX hosts, SMTP check, free provider check

## ipv4.fr's plans (5)

- [ipv4.fr, free](https://datacircle.dev/validate-email-apis/ipv4-fr/free/llms.txt): $0.00 per 1,000, 33% complete, live
- [ipv4.fr, pay as you go](https://datacircle.dev/validate-email-apis/ipv4-fr/pay-as-you-go/llms.txt): $5.00 per 1,000, 33% complete, live
- [ipv4.fr, €5 pack](https://datacircle.dev/validate-email-apis/ipv4-fr/5-pack/llms.txt): $1.125 per 1,000, 33% complete, live
- [ipv4.fr, €9 monthly, Pro, GET /api/v1/email/{email}](https://datacircle.dev/validate-email-apis/ipv4-fr/9-monthly-pro-get-api-v1-email-email/llms.txt): $0.034 per 1,000, 33% complete, live
- [ipv4.fr, €49 monthly, Business, GET /api/v1/email/{email}](https://datacircle.dev/validate-email-apis/ipv4-fr/49-monthly-business-get-api-v1-email-email/llms.txt): $0.018 per 1,000, 33% complete, live

## ipv4.fr's calls for this API (3)

- `GET /api/v1/email/{email}`: [ipv4.fr, free](https://datacircle.dev/validate-email-apis/ipv4-fr/free/llms.txt)
- `GET /x402/v1/email/{email}`: [ipv4.fr, pay as you go](https://datacircle.dev/validate-email-apis/ipv4-fr/pay-as-you-go/llms.txt)
- `POST /api/v1/email/bulk`: [ipv4.fr, €9 monthly, Pro, POST /api/v1/email/bulk](https://datacircle.dev/validate-email-apis/ipv4-fr/9-monthly-pro-post-api-v1-email-bulk/llms.txt)

## ipv4.fr's APIs (5)

- [ipv4.fr: domain WHOIS API pricing, 5 plans](https://datacircle.dev/domain-whois-apis/ipv4-fr/free/llms.txt)
- [ipv4.fr: email verification API pricing, 5 plans](https://datacircle.dev/validate-email-apis/ipv4-fr/free/llms.txt)
- [ipv4.fr: IP company lookup API pricing, 5 plans](https://datacircle.dev/ip-company-lookup-apis/ipv4-fr/free/llms.txt)
- [ipv4.fr: web scraping API pricing, 1 plan, Web page to Markdown (x402 pay-per-call)](https://datacircle.dev/web-scraping-apis/ipv4-fr/pay-as-you-go-x402-pay-per-call-get-x402-v1-markdown-web-page-to-markdown-x402-pay-per-call/llms.txt)
- [ipv4.fr: web scraping API pricing, 1 plan, Web page to Markdown (x402 pay-per-call), full](https://datacircle.dev/web-scraping-apis/ipv4-fr/pay-as-you-go-x402-pay-per-call-get-x402-v1-markdown-web-page-to-markdown-x402-pay-per-call-full/llms.txt)
- [ipv4.fr: company enrichment API pricing, 1 plan](https://datacircle.dev/company-enrichment-apis/ipv4-fr/pay-as-you-go/llms.txt)

## ipv4.fr: email verification API alternatives

- [treg, top-up from $200](https://datacircle.dev/validate-email-apis/treg/top-up-from-200/llms.txt): $0.00 per 1,000, 33% complete, live
- [Validemail.co, €9.90 monthly, 9.90 €/month, GET /api/v1/validate](https://datacircle.dev/validate-email-apis/validemail-co/9-90-monthly-9-90-month-get-api-v1-validate/llms.txt): $0.00043 per 1,000, 67% complete, live
- [MailTester Ninja, $23.99 monthly](https://datacircle.dev/validate-email-apis/mailtester-ninja/23-99-monthly/llms.txt): $0.008 per 1,000, 50% complete, live
- [EmailZeno, $420 yearly, Unlimited, POST /v1/verify](https://datacircle.dev/validate-email-apis/emailzeno/420-yearly-unlimited-post-v1-verify/llms.txt): $0.023 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 2026-11-07.

- https://ipv4.fr?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://ipv4.fr/cgv.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://ipv4.fr/docs.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://ipv4.fr/en?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://ipv4.fr/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://ipv4.fr/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://ipv4.fr/tools/email-validator?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://ipv4.fr/x402/v1?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing