# EmailValidationTool, free plan, POST /v1/verify/single: Email verification API

> Integrate email verification directly into your application with our RESTful API. Sub-500ms response times, 99.9% uptime, and 99.5% accuracy. Verify emails in real-time at signup, in bulk via batch endpoints, or through webhooks.

EmailValidationTool'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 haven't run EmailValidationTool through [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt) yet.
This plan is free. We rank 3,886 plans for email verification APIs by price. Half the plans cost $1.998 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.
[email-validation.org](https://datacircle.dev/validate-email-apis/email-validation-org/450-pack-1000000-credits-post-v1-validate/llms.txt), [pingutil](https://datacircle.dev/validate-email-apis/pingutil/free-api-key-post-v1-verify/llms.txt) and [MailTester Ninja](https://datacircle.dev/validate-email-apis/mailtester-ninja/23-99-monthly/llms.txt) are the best email verification API providers in the Datacircle benchmark.

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

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Integrate email verification directly into your application with our RESTful API. Sub-500ms response times, 99.9% uptime, and 99.5% accuracy. Verify emails in real-time at signup, in bulk via batch endpoints, or through webhooks.

## Data

- What it checks: format, mail servers, disposable domains, role addresses, mailbox
- Keep data: no limit
- Use data: Our services are for verification purposes only. You may not use verification results to send unsolicited commercial email to addresses that have not opted in to receive communications from you. [...] You may not use our services for any of the following purposes: [...] Attempting to identify, locate, or track individuals using email verification results, Sharing verification results that contain personal data with third parties without appropriate legal basis and data protection agreements, Using our service to profile or make automated decisions about individuals based solely on their email verification status, Reselling or redistributing our verification services without written authorization [...] Do not use our API to perform competitive benchmarking or accuracy testing of our service without prior written consent

## Plan

- Pay: $0
- You get: 100 credits a day
- Enough for: 100 calls a day

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

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

## About the plan

- Plan: Free Plan
- Who can get it: anyone at least 18 years old with the legal authority to enter its terms

## The 13 fields the plan's answer can hold

email address, valid, deliverable, risk level, confidence score, domain, syntax valid, domain exists, MX record, SMTP valid, reason, cached, response time

## EmailValidationTool's plans (8)

- [EmailValidationTool, free plan, POST /v1/verify/single](https://datacircle.dev/validate-email-apis/emailvalidationtool/free-plan-post-v1-verify-single/llms.txt): $0.00 per 1,000, 67% complete
- [EmailValidationTool, $10 pack, Starter LTD, POST /v1/verify/single](https://datacircle.dev/validate-email-apis/emailvalidationtool/10-pack-starter-ltd-post-v1-verify-single/llms.txt): $16.667 per 1,000, 67% complete
- [EmailValidationTool, $10 pack, Instant Credits, POST /v1/verify/single](https://datacircle.dev/validate-email-apis/emailvalidationtool/10-pack-instant-credits-post-v1-verify-single/llms.txt): $0.667 per 1,000, 67% complete
- [EmailValidationTool, $20 pack, Professional LTD, POST /v1/verify/single](https://datacircle.dev/validate-email-apis/emailvalidationtool/20-pack-professional-ltd-post-v1-verify-single/llms.txt): $13.333 per 1,000, 67% complete
- [EmailValidationTool, $30 pack, Business LTD, POST /v1/verify/single](https://datacircle.dev/validate-email-apis/emailvalidationtool/30-pack-business-ltd-post-v1-verify-single/llms.txt): $12.00 per 1,000, 67% complete
- [EmailValidationTool, $40 pack, Agency LTD, POST /v1/verify/single](https://datacircle.dev/validate-email-apis/emailvalidationtool/40-pack-agency-ltd-post-v1-verify-single/llms.txt): $10.00 per 1,000, 67% complete
- [EmailValidationTool, $10 monthly, Monthly Subscription, POST /v1/verify/single](https://datacircle.dev/validate-email-apis/emailvalidationtool/10-monthly-monthly-subscription-post-v1-verify-single/llms.txt): $0.50 per 1,000, 67% complete
- [EmailValidationTool, contact us, Enterprise, POST /v1/verify/single](https://datacircle.dev/validate-email-apis/emailvalidationtool/contact-us-enterprise-post-v1-verify-single/llms.txt): 67% complete

## EmailValidationTool's calls (2)

- `POST /v1/verify/bulk`: [EmailValidationTool, free plan, POST /v1/verify/bulk](https://datacircle.dev/validate-email-apis/emailvalidationtool/free-plan-post-v1-verify-bulk/llms.txt)
- `POST /v1/verify/single`: [EmailValidationTool, free plan, POST /v1/verify/single](https://datacircle.dev/validate-email-apis/emailvalidationtool/free-plan-post-v1-verify-single/llms.txt)

## EmailValidationTool's APIs (1)

- [EmailValidationTool: email verification API pricing, 8 plans, POST /v1/verify/single](https://datacircle.dev/validate-email-apis/emailvalidationtool/free-plan-post-v1-verify-single/llms.txt)

## EmailValidationTool: email verification API alternatives

- [Sealch, $25 monthly, Monthly up to 50,000 / mo, POST /api/verify](https://datacircle.dev/validate-email-apis/sealch/25-monthly-monthly-up-to-50000-mo-post-api-verify/llms.txt): $0.50 per 1,000, 17% complete, live
- [Verimail, $500 pack](https://datacircle.dev/validate-email-apis/verimail/500-pack/llms.txt): $0.50 per 1,000, 50% complete, live
- [Easy Email Verification, $1,200 monthly, Monthly subscription, 80,000 emails a day, POST /bulk/upload](https://datacircle.dev/validate-email-apis/easy-email-verification/1200-monthly-monthly-subscription-80000-emails-a-day-post-bulk-upload/llms.txt): $0.50 per 1,000, 50% complete, live
- [NullBounce, $500 pack](https://datacircle.dev/validate-email-apis/nullbounce/500-pack/llms.txt): $0.50 per 1,000, 33% 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://emailvalidationtool.org/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://emailvalidationtool.org/acceptable-use-policy?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://emailvalidationtool.org/developers/api-docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://emailvalidationtool.org/email-verifier-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://emailvalidationtool.org/faq?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://emailvalidationtool.org/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://emailvalidationtool.org/terms-of-service?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing