# YourAITools, free: Email verification API

> Email verification API. Email address check (syntax, disposable, MX, domain age, verdict)

YourAITools's Free preview plan for the email verification API costs $0.00 per 1,000 emails. We check each provider's docs for 6 fields. YourAITools's docs list 1: Deliverability.
YourAITools limits how many calls you get but gives no number.
We ran YourAITools in [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt). We didn't score any YourAITools plan.
We rank 4,337 plans for email verification APIs by price. Half the plans cost $2.00 or less per 1,000 emails. This plan and 65 others tie for the lowest price per 1,000 emails of the 4,337 plans. [See the best free email verification API plan.](https://datacircle.dev/best-email-verification-api.txt)
[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), [Validemail.co](https://datacircle.dev/validate-email-apis/validemail-co/9-90-monthly-9-90-month-get-api-v1-validate/llms.txt) and [looot](https://datacircle.dev/validate-email-apis/looot/top-up/llms.txt) are the best email verification API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-email-apis/youraitools/free
- [Email validation API: best verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://api.youraitools.co/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `GET https://api.youraitools.co/domaincheck/v1/email/preview`
- API key: not needed
- Its API docs: https://api.youraitools.co/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing#/paths/~1domaincheck~1v1~1email~1preview
- Sold by: YourAITools (https://youraitools.co?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-09

## In the answer

- Completeness: 17%
- Deliverability: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Email verification API. Email address check (syntax, disposable, MX, domain age, verdict)

## Data

- What it checks: format, mail servers, disposable domains, role addresses
- Keep data: no limit
- Use data: Don't use the site or APIs to break the law, attack or overload our services or anyone else's, get around rate limits or payments, or scrape the site in a way that harms it. [...] Everything the site and the APIs return is informational: listings, scores, verdicts, verification checks, page reads and screening results. Automated checks can be wrong or incomplete. Use them as one input, not as the only basis for a decision.

## Plan

- Pay: $0

## Rate limit

- Per second: 0.17
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: email
- Method: GET
- Path: /domaincheck/v1/email/preview

## About the plan

- Plan: Free preview
- Who can get it: anyone, no account or API key, limited per IP

## The 4 fields the plan's answer can hold

syntax valid, disposable, role, free provider

## YourAITools's plans (7)

- [YourAITools, free](https://datacircle.dev/validate-email-apis/youraitools/free/llms.txt): $0.00 per 1,000, 17% complete
- [YourAITools, pay as you go](https://datacircle.dev/validate-email-apis/youraitools/pay-as-you-go/llms.txt): $1.00 per 1,000, 67% complete
- [YourAITools, $0.01 pack](https://datacircle.dev/validate-email-apis/youraitools/0-01-pack/llms.txt): $1.00 per 1,000, 67% complete
- [YourAITools, $1 pack](https://datacircle.dev/validate-email-apis/youraitools/1-pack/llms.txt): $1.00 per 1,000, 67% complete
- [YourAITools, $5 pack](https://datacircle.dev/validate-email-apis/youraitools/5-pack/llms.txt): $0.909 per 1,000, 67% complete
- [YourAITools, $20 pack](https://datacircle.dev/validate-email-apis/youraitools/20-pack/llms.txt): $1.00 per 1,000, 67% complete
- [YourAITools, $50 pack](https://datacircle.dev/validate-email-apis/youraitools/50-pack/llms.txt): $1.00 per 1,000, 67% complete

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

- `GET /domaincheck/v1/email/preview`: [YourAITools, free](https://datacircle.dev/validate-email-apis/youraitools/free/llms.txt)
- `GET /domaincheck/v1/email`: [YourAITools, pay as you go](https://datacircle.dev/validate-email-apis/youraitools/pay-as-you-go/llms.txt)

## YourAITools's APIs (4)

- [YourAITools: tech stack API pricing, 7 plans](https://datacircle.dev/company-technology-apis/youraitools/free/llms.txt)
- [YourAITools: email verification API pricing, 7 plans](https://datacircle.dev/validate-email-apis/youraitools/free/llms.txt)
- [YourAITools: web scraping API pricing, 7 plans](https://datacircle.dev/web-scraping-apis/youraitools/free/llms.txt)
- [YourAITools: domain WHOIS API pricing, 6 plans](https://datacircle.dev/domain-whois-apis/youraitools/pay-as-you-go/llms.txt)

## YourAITools: email verification API alternatives

- [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
- [Validemail.co, free, POST /api/v1/bulk](https://datacircle.dev/validate-email-apis/validemail-co/free-post-api-v1-bulk/llms.txt): $0.00 per 1,000, 67% complete, live
- [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
- [Giggal, free trial, POST /v1/verify-batch](https://datacircle.dev/validate-email-apis/giggal/free-trial-post-v1-verify-batch/llms.txt): $0.00 per 1,000, 67% complete, live
- [MailSlurp, free](https://datacircle.dev/validate-email-apis/mailslurp/free/llms.txt): $0.00 per 1,000, 17% complete

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-09.

- https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://api.youraitools.co/.well-known/x402?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://api.youraitools.co/credits?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://api.youraitools.co/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://api.youraitools.co/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://api.youraitools.co/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://youraitools.co?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://youraitools.co/refund-policy?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://youraitools.co/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing