# pingutil, free API key, POST /v1/verify: Email verification API

> pingutil asks the recipient’s own mail server whether the mailbox exists, without sending a message. Every address comes back valid, invalid, risky or unknown, with the reason.

pingutil's email verification API on its Free API key plan. It costs $0.00 per 1,000 emails. It returns 3 of the 6 key fields we check: Address, Deliverability, Confidence.
You get up to 9,000 calls a month.
We haven't run pingutil through [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt) yet.
Half of the 3,753 plans we rank by price cost $1.98 per 1,000 emails or less. This plan and 50 others tie for the lowest price per 1,000 emails of the 3,753 plans.
[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.
[MailTester Ninja](https://datacircle.dev/validate-email-apis/mailtester-ninja/23-99-monthly/llms.txt), [Enrich.so](https://datacircle.dev/validate-email-apis/enrich-so/499-monthly/llms.txt) and [GetProspect](https://datacircle.dev/validate-email-apis/getprospect/369-pack/llms.txt) are the best email verification API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-email-apis/pingutil/free-api-key-post-v1-verify
- [Email validation API: 180+ verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://pingutil.com/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `POST https://pingutil.com/v1/verify`
- API key: with the plan, on https://pingutil.com/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Its API docs: https://pingutil.com/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Sold by: pingutil (https://pingutil.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-05

## In the answer

- Completeness: 50%
- Address: ✓
- Deliverability: ✓
- Confidence: ✓

## Price

- $ per 1,000 emails: $0.00
- Per: call
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Also pays for: Look up an email or domain · Read a domain from cache only · from the same budget: Verify up to 50 addresses

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: pingutil asks the recipient’s own mail server whether the mailbox exists, without sending a message. Every address comes back valid, invalid, risky or unknown, with the reason.

## Data

- Freshness: 30 days
- What it checks: format, mail servers, disposable domains, role addresses, mailbox
- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: $0
- Enough for: 9,000 calls a month

## Rate limit

- Per day: 300
- Per second: 1
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: email
- Method: POST
- Path: /v1/verify

## About the plan

- Plan: Free API key
- Who can get it: anyone who signs in with an email address

## The 21 fields the plan's answer can hold

email, input, status, reason, score, did you mean, syntax, disposable, free provider, role address, randomized, domain exists, has MX, mailbox status, catch-all, MX host, SMTP code, SMTP enhanced code, SMTP message, cached, checked at

## pingutil's plans (1)

- [pingutil, free API key, POST /v1/verify](https://datacircle.dev/validate-email-apis/pingutil/free-api-key-post-v1-verify/llms.txt): $0.00 per 1,000, 50% complete, 30 days

## pingutil's calls for this API (2)

- `POST /v1/verify`: [pingutil, free API key, POST /v1/verify](https://datacircle.dev/validate-email-apis/pingutil/free-api-key-post-v1-verify/llms.txt)
- `POST /v1/verify/batch`: [pingutil, free API key, POST /v1/verify/batch](https://datacircle.dev/validate-email-apis/pingutil/free-api-key-post-v1-verify-batch/llms.txt)

## pingutil's APIs (2)

- [pingutil: company enrichment API pricing, 1 plan, POST /v1/lookup](https://datacircle.dev/company-enrichment-apis/pingutil/free-api-key-post-v1-lookup/llms.txt)
- [pingutil: company enrichment API pricing, 1 plan, GET /v1/domains/{domain}](https://datacircle.dev/company-enrichment-apis/pingutil/free-api-key-get-v1-domains-domain/llms.txt)
- [pingutil: email verification API pricing, 1 plan, POST /v1/verify](https://datacircle.dev/validate-email-apis/pingutil/free-api-key-post-v1-verify/llms.txt)

## pingutil: email verification API alternatives

- [MailTester Ninja, free, No token](https://datacircle.dev/validate-email-apis/mailtester-ninja/free-no-token/llms.txt): $0.00 per 1,000, 50% complete, live
- [Enrich.so, 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, 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
- [Sealch, free, POST /api/verify](https://datacircle.dev/validate-email-apis/sealch/free-free-post-api-verify/llms.txt): $0.00 per 1,000, 17% complete, live
- [Mail List Shield, free](https://datacircle.dev/validate-email-apis/mail-list-shield/free/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 2026-11-05.

- https://pingutil.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://pingutil.com/about?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://pingutil.com/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://pingutil.com/api/explorer?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://pingutil.com/blog/best-free-email-validation-apis?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://pingutil.com/blog/free-domain-intelligence-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://pingutil.com/compare/abstract-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://pingutil.com/email-verification?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://pingutil.com/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://pingutil.com/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing