# TidyTools, free: Email verification API

> Syntax, domain and MX checks, disposable and role-address flags and typo suggestions, without pinging mail servers.

TidyTools's BASIC plan for the email verification API costs $0.00 per 1,000 emails. We check each provider's docs for 6 fields. TidyTools's docs list 4: Address, Deliverability, Confidence, Company.
We haven't run TidyTools through [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt) yet.
This plan is free. We rank 4,337 plans for email verification APIs by price. Half the plans cost $2.00 or less per 1,000 emails. [See the best free email verification API plan.](https://datacircle.dev/best-email-verification-api.txt)
[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. [StableEnrich's pay-as-you-go plan](https://datacircle.dev/validate-email-apis/stableenrich/pay-as-you-go-pay-per-request-with-x402-or-mpp-post-api-minerva-validate-emails/llms.txt) costs the least for 10,000 emails a month: $0.05.
[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/tidytools/free
- [Email validation API: best verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://rapidapi.com/tidytools/api/email-validation-api41/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `POST https://email-validation-api41.p.rapidapi.com/api/v1/email/validate`
- API key: with the plan, on https://rapidapi.com/tidytools/api/email-validation-api41/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Its API docs: https://tools.yukai.uk/openapi/email-validation.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing#/paths/~1api~1v1~1email~1validate
- Sold by: TidyTools (https://tools.yukai.uk?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-09

## 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: Validate up to 50 email addresses

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Syntax, domain and MX checks, disposable and role-address flags and typo suggestions, without pinging mail servers.

## Data

- What it checks: format, mail servers, disposable domains, role addresses
- Keep data: no limit
- Use data: Use the tools only for lawful purposes and only on data you are allowed to process. You are responsible for how you use the results, including personal data and the terms of the websites you query. [...] Do not use the service to attack, overload or break into systems, to send spam, or to get around rate limits or access controls (we do not solve CAPTCHAs). Do not resell raw access to the API as your own API without our written agreement. Do not use our AI features to create or describe sexual or other not-safe-for-work content.

## Plan

- Pay: $0
- You get: 500 requests a month
- Enough for: 500 calls a month

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: email
- Method: POST
- Path: /api/v1/email/validate

## About the plan

- Plan: BASIC
- Who can get it: anyone with a RapidAPI account

## The 23 fields the plan's answer can hold

email, normalized email, syntax valid, local part, domain, verdict, score, reason, reasons, did you mean, domain exists, MX found, accepts mail, MX records, mail provider, disposable, role address, no-reply address, free provider, tag, catch-all, mailbox checked, disposable list

## TidyTools's plans (7)

- [TidyTools, free](https://datacircle.dev/validate-email-apis/tidytools/free/llms.txt): $0.00 per 1,000, 67% complete
- [TidyTools, $5 pack](https://datacircle.dev/validate-email-apis/tidytools/5-pack/llms.txt): $0.50 per 1,000, 67% complete
- [TidyTools, $20 pack](https://datacircle.dev/validate-email-apis/tidytools/20-pack/llms.txt): $0.476 per 1,000, 67% complete
- [TidyTools, $50 pack](https://datacircle.dev/validate-email-apis/tidytools/50-pack/llms.txt): $0.455 per 1,000, 67% complete
- [TidyTools, $4.99 monthly](https://datacircle.dev/validate-email-apis/tidytools/4-99-monthly/llms.txt): $0.499 per 1,000, 67% complete
- [TidyTools, $14.99 monthly](https://datacircle.dev/validate-email-apis/tidytools/14-99-monthly/llms.txt): $0.30 per 1,000, 67% complete
- [TidyTools, $39.99 monthly](https://datacircle.dev/validate-email-apis/tidytools/39-99-monthly/llms.txt): $0.16 per 1,000, 67% complete

## TidyTools's calls for this API (1)

- `POST /api/v1/email/validate`: [TidyTools, free](https://datacircle.dev/validate-email-apis/tidytools/free/llms.txt)

## TidyTools's APIs (12)

- [TidyTools: company enrichment API pricing, 5 plans](https://datacircle.dev/company-enrichment-apis/tidytools/free/llms.txt)
- [TidyTools: company open jobs API pricing, 5 plans](https://datacircle.dev/company-open-job-apis/tidytools/free/llms.txt)
- [TidyTools: tech stack API pricing, 7 plans](https://datacircle.dev/company-technology-apis/tidytools/free/llms.txt)
- [TidyTools: domain authority API pricing, 5 plans](https://datacircle.dev/domain-authority-apis/tidytools/free/llms.txt)
- [TidyTools: domain WHOIS API pricing, 7 plans](https://datacircle.dev/domain-whois-apis/tidytools/free/llms.txt)
- [TidyTools: email verification API pricing, 7 plans](https://datacircle.dev/validate-email-apis/tidytools/free/llms.txt)
- [TidyTools: local business search API pricing, 5 plans](https://datacircle.dev/local-business-search-apis/tidytools/free/llms.txt)
- [TidyTools: App Store API pricing, 3 plans](https://datacircle.dev/app-store-apis/tidytools/5-pack/llms.txt)
- [TidyTools: App Store review API pricing, 3 plans](https://datacircle.dev/app-store-review-apis/tidytools/5-pack/llms.txt)
- [TidyTools: Google Play API pricing, 3 plans](https://datacircle.dev/google-play-apis/tidytools/5-pack/llms.txt)
- [TidyTools: Google Play review API pricing, 3 plans](https://datacircle.dev/google-play-review-apis/tidytools/5-pack/llms.txt)
- [TidyTools: web scraping API pricing, 3 plans](https://datacircle.dev/web-scraping-apis/tidytools/5-pack/llms.txt)

## TidyTools: email verification API alternatives

- [ProWebLook, $1,599.20 monthly](https://datacircle.dev/validate-email-apis/proweblook/1599-20-monthly/llms.txt): $0.16 per 1,000, 33% complete, live
- [email-validation.org, $8,000 pack, 50,000,000 credits, POST /v1/validate](https://datacircle.dev/validate-email-apis/email-validation-org/8000-pack-50000000-credits-post-v1-validate/llms.txt): $0.16 per 1,000, 50% complete, stored
- [BillionVerify, $960 yearly, Enterprise, POST /verify/bulk](https://datacircle.dev/validate-email-apis/billionverify/960-yearly-enterprise-post-verify-bulk/llms.txt): $0.16 per 1,000, 67% complete, live
- [CleanTalk, $192 yearly, 100,000 checks a month, 12 months (20% off), GET /, email_check](https://datacircle.dev/validate-email-apis/cleantalk/192-yearly-100000-checks-a-month-12-months-20-off-get-email-check/llms.txt): $0.16 per 1,000, 33% 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://docs.rapidapi.com/docs/additional-request-headers?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://docs.rapidapi.com/docs/hub-listing-monetize-tab.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://rapidapi.com/tidytools/api/email-validation-api41?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://rapidapi.com/tidytools/api/email-validation-api41/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://tools.yukai.uk?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://tools.yukai.uk/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://tools.yukai.uk/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://tools.yukai.uk/openapi/email-validation.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://tools.yukai.uk/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://tools.yukai.uk/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing