# PingValid, free, POST /v1/validate: Email verification API

> Real-time email validation over HTTPS. Bearer-keyed JSON API: one POST for a single verdict, one POST for up to 1,000. Credits refunded when a "valid" bounces: claim within seven days of the check, up to 5% of monthly volume.

PingValid'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.
In [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt), the best plan from PingValid scores 56.9 out of 100. PingValid ranks 38th of 181 providers.
This plan is free. We rank 3,753 plans for email verification APIs by price. Half the plans cost $1.98 per 1,000 emails or less.
[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.
[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/pingvalid/free-post-v1-validate
- [Email validation API: 180+ verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://pingvalid.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `POST https://pingvalid.com/v1/validate`
- API key: with the plan, on https://pingvalid.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Its API docs: https://pingvalid.com/docs/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Sold by: PingValid (https://pingvalid.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-05

## 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: from the same budget: Validate up to 1,000 emails per job

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## Bounce

- Bounce refund: 1 credit per bounce, when the bounce evidence is submitted within 7 days of the check, up to 5% of monthly volume, each claim reviewed by a human

## In their words

- Their pitch: Real-time email validation over HTTPS. Bearer-keyed JSON API: one POST for a single verdict, one POST for up to 1,000. Credits refunded when a "valid" bounces: claim within seven days of the check, up to 5% of monthly volume.

## Data

- What it checks: format, mail servers, disposable domains, role addresses, mailbox
- Keep data: no limit
- Use data: By submitting any address for validation, you warrant that: You have a legitimate interest in validating every address you submit, and a lawful basis to process it. [...] You will not validate lists obtained through unauthorized means — stolen lists, addresses scraped or harvested without consent, or lists purchased from non-compliant vendors. You will not use validation results to enable phishing, credential stuffing, impersonation, or to circumvent any anti-spam law (including CAN-SPAM, CASL, and their equivalents in any jurisdiction). You will not knowingly submit minors’ addresses or addresses obtained through deceptive means, and you will not re-sell our results without an explicit license. You are responsible for the downstream use of validated addresses — sending, retention, and deletion are your obligations, not ours.

## Plan

- Pay: $0
- You get: 100 credits a month
- Enough for: 100 calls a month
- Expires: unused free credits do not accumulate

## Rate limit

- Per second: 16.67
- Batch: 1

## Speed

- Answer: in the call
- Median: 0.95 s

## The call

- You send: email. Optional: tier, Idempotency-Key header
- Method: POST
- Path: /v1/validate

## About the plan

- Plan: Free
- Who can get it: anyone

## The 10 fields the plan's answer can hold

email, normalized email, verdict, risk score, tier results, cached hit, checked at, request ID, duration, credits charged

## PingValid's plans (9)

- [PingValid, free, POST /v1/validate](https://datacircle.dev/validate-email-apis/pingvalid/free-post-v1-validate/llms.txt): $0.00 per 1,000, 33% complete
- [PingValid, $25 pack, 6,000 credits, POST /v1/validate](https://datacircle.dev/validate-email-apis/pingvalid/25-pack-6000-credits-post-v1-validate/llms.txt): $4.167 per 1,000, 33% complete
- [PingValid, $100 pack, 30,000 credits, POST /v1/validate](https://datacircle.dev/validate-email-apis/pingvalid/100-pack-30000-credits-post-v1-validate/llms.txt): $3.333 per 1,000, 33% complete
- [PingValid, $500 pack, 175,000 credits, POST /v1/validate](https://datacircle.dev/validate-email-apis/pingvalid/500-pack-175000-credits-post-v1-validate/llms.txt): $2.857 per 1,000, 33% complete
- [PingValid, $19 monthly, Starter, POST /v1/validate](https://datacircle.dev/validate-email-apis/pingvalid/19-monthly-starter-post-v1-validate/llms.txt): $3.80 per 1,000, 33% complete
- [PingValid, $79 monthly, Growth, POST /v1/validate](https://datacircle.dev/validate-email-apis/pingvalid/79-monthly-growth-post-v1-validate/llms.txt): $1.58 per 1,000, 33% complete
- [PingValid, $299 monthly, Scale, POST /v1/validate](https://datacircle.dev/validate-email-apis/pingvalid/299-monthly-scale-post-v1-validate/llms.txt): $1.196 per 1,000, 33% complete
- [PingValid, $899 monthly, Business, POST /v1/validate](https://datacircle.dev/validate-email-apis/pingvalid/899-monthly-business-post-v1-validate/llms.txt): $0.899 per 1,000, 33% complete
- [PingValid, contact us, Enterprise, POST /v1/validate](https://datacircle.dev/validate-email-apis/pingvalid/contact-us-enterprise-post-v1-validate/llms.txt): 33% complete

## PingValid's calls (2)

- `POST /v1/validate`: [PingValid, free, POST /v1/validate](https://datacircle.dev/validate-email-apis/pingvalid/free-post-v1-validate/llms.txt)
- `POST /v1/bulk-jobs`: [PingValid, free, POST /v1/bulk-jobs](https://datacircle.dev/validate-email-apis/pingvalid/free-post-v1-bulk-jobs/llms.txt)

## PingValid's APIs (1)

- [PingValid: email verification API pricing, 9 plans, POST /v1/validate](https://datacircle.dev/validate-email-apis/pingvalid/free-post-v1-validate/llms.txt)

## PingValid: email verification API alternatives

- [MailValid, $899 pack, Pay-as-you-go 1,000,000 credits, POST /api/v1/verify/bulk](https://datacircle.dev/validate-email-apis/mailvalid/899-pack-pay-as-you-go-1000000-credits-post-api-v1-verify-bulk/llms.txt): $0.899 per 1,000, 67% complete, 30 days
- [VerifyAnyEmail, $8.99 monthly, Starter, POST /v1/verify](https://datacircle.dev/validate-email-apis/verifyanyemail/8-99-monthly-starter-post-v1-verify/llms.txt): $0.899 per 1,000, 67% complete, live
- [Email List Validation, $899 monthly, 1,000,000 emails, monthly, POST /api/v1/verify/batch/upload](https://datacircle.dev/validate-email-apis/email-list-validation/899-monthly-1000000-emails-monthly-post-api-v1-verify-batch-upload/llms.txt): $0.899 per 1,000, 50% complete, live
- [Bulk Email Checker, $44.95 pack](https://datacircle.dev/validate-email-apis/bulk-email-checker/44-95-pack/llms.txt): $0.899 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://pingvalid.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://pingvalid.com/docs/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://pingvalid.com/docs/api.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://pingvalid.com/docs/mcp.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://pingvalid.com/legal/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://pingvalid.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing