# Verifox, free, POST /email-validation: Email verification API

> Same verdict via JSON body, for callers that keep addresses out of URLs and logs.

Verifox's email verification API on its Free plan. It costs $0.00 per 1,000 emails. It returns 4 of the 6 key fields we check: Address, Deliverability, Confidence, Company.
We rank 3,228 plans by price. [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 our benchmark.

- This page: https://datacircle.dev/validate-email-apis/verifox/free-post-email-validation
- [Best email verification API in 2026: providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://verifox.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `POST https://api.verifox.ai/v1/email-validation`
- API key: with the plan, on https://verifox.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Its API docs: https://verifox.ai/api-docs/email-validation?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Sold by: Verifox (https://verifox.ai?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-02

## In the answer

- Completeness: 67%
- Address: ✓
- Deliverability: ✓
- Confidence: ✓
- Company: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Verify Email (GET) · Start Bulk Job · Find Email

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## Catch-all

- $ per 1,000: $0.00

## Bounce

- Bounce refund: the credit, as account credit, for a "Valid" address that hard-bounces within 30 days, claimed by email with the bounce message and reviewed

## In their words

- Their pitch: Same verdict via JSON body, for callers that keep addresses out of URLs and logs.

## Data

- Freshness: live
- What it checks: format, mail servers, disposable domains, role addresses, mailbox
- Keep data: no limit
- Use data: a limited, non-exclusive, non-transferable, revocable licence to access and use the Service solely for your internal business purposes [...] You agree to use the Verifox Service only for lawful purposes and in accordance with these Terms. The following uses are strictly prohibited: Verifying email addresses for the purpose of sending spam, unsolicited bulk email, or any communication that violates CAN-SPAM, CASL, or other applicable anti-spam laws, Using the Email Finder to harvest contact information for unsolicited outreach in violation of applicable law, Submitting verification requests for email lists that you do not own, have not obtained lawfully, or which consist of consumer personal data without appropriate legal basis, Attempting to reverse-engineer, scrape, or exploit our SMTP probing infrastructure, Using the Service to facilitate harassment, abuse, or threats against any individual, Reselling or white-labelling the Service without an authorised reseller agreement with Verifox, Circumventing rate limits, authentication, or other technical controls, Using automated scripts to create multiple accounts or abuse the free trial

## Plan

- Pay: $0
- You get: 1,000 credits
- Enough for: 1,000 calls, once
- Expires: never

## Rate limit

- Per second: 1
- Batch: 1

## Speed

- Answer: in the call
- Median: 13.84 s

## The call

- You send: email. Optional: proxy
- Method: POST
- Path: /email-validation

## About the plan

- Plan: Free
- Who can get it: anyone

## The 25 fields the plan's answer can hold

email, domain, valid, reachable, syntax valid, host exists, full inbox, catch-all, deliverable, disabled, MX records, SMTP provider, domain age in days, domain created, has SPF, has DMARC, has DKIM, free, role, disposable, has Gravatar, did you mean, source, verified on, confidence score

## Verifox's plans (13)

- [Verifox, free, POST /email-validation](https://datacircle.dev/validate-email-apis/verifox/free-post-email-validation/llms.txt): $0.00 per 1,000, 67% complete, live
- [Verifox, $9 pack, 1,000 credits, POST /email-validation](https://datacircle.dev/validate-email-apis/verifox/9-pack-1000-credits-post-email-validation/llms.txt): $9.00 per 1,000, 67% complete, live
- [Verifox, $19 pack, 2,500 credits, POST /email-validation](https://datacircle.dev/validate-email-apis/verifox/19-pack-2500-credits-post-email-validation/llms.txt): $7.60 per 1,000, 67% complete, live
- [Verifox, $34 pack, 5,000 credits, POST /email-validation](https://datacircle.dev/validate-email-apis/verifox/34-pack-5000-credits-post-email-validation/llms.txt): $6.80 per 1,000, 67% complete, live
- [Verifox, $59 pack, 10,000 credits, POST /email-validation](https://datacircle.dev/validate-email-apis/verifox/59-pack-10000-credits-post-email-validation/llms.txt): $5.90 per 1,000, 67% complete, live
- [Verifox, $129 pack, 25,000 credits, POST /email-validation](https://datacircle.dev/validate-email-apis/verifox/129-pack-25000-credits-post-email-validation/llms.txt): $5.16 per 1,000, 67% complete, live
- [Verifox, $229 pack, 50,000 credits, POST /email-validation](https://datacircle.dev/validate-email-apis/verifox/229-pack-50000-credits-post-email-validation/llms.txt): $4.58 per 1,000, 67% complete, live
- [Verifox, $349 pack, 100,000 credits, POST /email-validation](https://datacircle.dev/validate-email-apis/verifox/349-pack-100000-credits-post-email-validation/llms.txt): $3.49 per 1,000, 67% complete, live
- [Verifox, $699 pack, 250,000 credits, POST /email-validation](https://datacircle.dev/validate-email-apis/verifox/699-pack-250000-credits-post-email-validation/llms.txt): $2.796 per 1,000, 67% complete, live
- [Verifox, $1,199 pack, 500,000 credits, POST /email-validation](https://datacircle.dev/validate-email-apis/verifox/1199-pack-500000-credits-post-email-validation/llms.txt): $2.398 per 1,000, 67% complete, live
- [Verifox, $1,899 pack, 1,000,000 credits, POST /email-validation](https://datacircle.dev/validate-email-apis/verifox/1899-pack-1000000-credits-post-email-validation/llms.txt): $1.899 per 1,000, 67% complete, live
- [Verifox, $79 monthly, Verifox ONE, POST /email-validation](https://datacircle.dev/validate-email-apis/verifox/79-monthly-verifox-one-post-email-validation/llms.txt): $5.267 per 1,000, 67% complete, live
- [Verifox, contact us, Enterprise, POST /email-validation](https://datacircle.dev/validate-email-apis/verifox/contact-us-enterprise-post-email-validation/llms.txt): 67% complete, live

## Verifox's calls for this API (3)

- `POST /email-validation/bulk`: [Verifox, free, POST /email-validation/bulk](https://datacircle.dev/validate-email-apis/verifox/free-post-email-validation-bulk/llms.txt)
- `GET /email-validation/{email}`: [Verifox, free, GET /email-validation/{email}](https://datacircle.dev/validate-email-apis/verifox/free-get-email-validation-email/llms.txt)
- `POST /email-validation`: [Verifox, free, POST /email-validation](https://datacircle.dev/validate-email-apis/verifox/free-post-email-validation/llms.txt)

## Verifox's APIs (2)

- [Verifox: email finder API pricing, 13 plans](https://datacircle.dev/find-email-apis/verifox/free/llms.txt)
- [Verifox: email verification API pricing, 13 plans, POST /email-validation](https://datacircle.dev/validate-email-apis/verifox/free-post-email-validation/llms.txt)

## Verifox: email verification API alternatives

- [KaijuVerifier, $19 monthly, Starter, POST /api/v1/jobs, Submit an async bulk job with the SMTP probe](https://datacircle.dev/validate-email-apis/kaijuverifier/19-monthly-starter-post-api-v1-jobs/llms.txt): $1.90 per 1,000, 50% complete, live
- [Bouncify, $19 monthly](https://datacircle.dev/validate-email-apis/bouncify/19-monthly/llms.txt): $1.90 per 1,000, 50% complete, live
- [VeriMails, $19 pack, 10,000 credits, POST /api/verify/single](https://datacircle.dev/validate-email-apis/verimails/19-pack-10000-credits-post-api-verify-single/llms.txt): $1.90 per 1,000, 67% complete, live
- [Valid Email Checker, $4 monthly, 2,100 credits a month, POST /verify-bulk](https://datacircle.dev/validate-email-apis/valid-email-checker/4-monthly-2100-credits-a-month-post-verify-bulk/llms.txt): $1.905 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 2026-11-02.

- https://verifox.ai/api-docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://verifox.ai/api-docs/email-validation?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://verifox.ai/api-page/email-verification-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://verifox.ai/legal/refund-policy?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://verifox.ai/legal/terms-of-service?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://verifox.ai/legal/zero-bounce?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://verifox.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing