# Botoi, free, Free, POST /v1/email-mx/verify: Cached email verification API

> Validates the address format, extracts the domain, and queries Cloudflare DNS for MX records.

Botoi's cached email verification API on its Free plan. It costs $0.00 per 1,000 emails. It returns 3 of the 6 key fields we check: Address, Deliverability, Company.

- This page: https://datacircle.dev/cached-email-validation-apis/botoi/free-free-post-v1-email-mx-verify
- Get it: https://botoi.com/pricing/
- Its API docs: https://botoi.com/api/lookup/email-mx-verify/
- Sold by: Botoi (https://botoi.com)
- Checked: 2026-10-23

## In the answer

- Completeness: 50%
- Address: ✓
- Deliverability: ✓
- Company: ✓

## Price

- $ per 1,000: $0.00
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Per: call
- Also pays for: from the same budget: All 150+ endpoints

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Validates the address format, extracts the domain, and queries Cloudflare DNS for MX records.

## Data

- Freshness: stored
- Keep data: no limit
- Use data: By obtaining and using an API key, You agree to: Keep Your API key confidential and not share it with unauthorized parties, Not exceed the rate limits associated with Your plan tier, Not use the API for any unlawful purpose or to transmit harmful content, Not attempt to circumvent authentication, rate limiting, or other security measures, Not resell or redistribute API access without prior written consent from the Company

## Plan

- Pay: $0
- You get: 1,000 requests a day
- Enough for: 1,000 calls a day
- Expires: resets daily at midnight UTC

## Rate limit

- Per day: 1,000
- Per second: 0.17
- Batch: 1

## Speed

- Answer: in the call

## The call

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

## About the plan

- Plan: Free
- Who can get it: anyone 18 or older

## The 9 fields the plan's answer can hold

success, email address, format valid, domain, MX found, MX records, deliverable, request ID, time taken

## Botoi's plans (4)

- [Botoi, free, Free, POST /v1/email-mx/verify](https://datacircle.dev/cached-email-validation-apis/botoi/free-free-post-v1-email-mx-verify/llms.txt): $0.00 per 1,000, 50% complete, stored
- [Botoi, $9 monthly, Starter, POST /v1/email-mx/verify](https://datacircle.dev/cached-email-validation-apis/botoi/9-monthly-starter-post-v1-email-mx-verify/llms.txt): $0.03 per 1,000, 50% complete, stored
- [Botoi, $49 monthly, Pro, POST /v1/email-mx/verify](https://datacircle.dev/cached-email-validation-apis/botoi/49-monthly-pro-post-v1-email-mx-verify/llms.txt): $0.016 per 1,000, 50% complete, stored
- [Botoi, $199 monthly, Business, POST /v1/email-mx/verify](https://datacircle.dev/cached-email-validation-apis/botoi/199-monthly-business-post-v1-email-mx-verify/llms.txt): $0.0066 per 1,000, 50% complete, stored

## Botoi's calls (3)

- `POST /v1/disposable-email/check`: [Botoi, free, Free, POST /v1/disposable-email/check](https://datacircle.dev/cached-email-validation-apis/botoi/free-free-post-v1-disposable-email-check/llms.txt)
- `POST /v1/email/validate`: [Botoi, free, Free, POST /v1/email/validate](https://datacircle.dev/cached-email-validation-apis/botoi/free/llms.txt)
- `POST /v1/email-mx/verify`: [Botoi, free, Free, POST /v1/email-mx/verify](https://datacircle.dev/cached-email-validation-apis/botoi/free-free-post-v1-email-mx-verify/llms.txt)

## Botoi's APIs (3)

- [Botoi: company technology API pricing, 4 plans](https://datacircle.dev/company-technology-apis/botoi/free/llms.txt)
- [Botoi: cached phone validation API pricing, 4 plans](https://datacircle.dev/cached-phone-validation-apis/botoi/free/llms.txt)
- [Botoi: cached email verification API pricing, 4 plans, POST /v1/email-mx/verify](https://datacircle.dev/cached-email-validation-apis/botoi/free-free-post-v1-email-mx-verify/llms.txt)

## Botoi: cached email verification API alternatives

- [graph8, free](https://datacircle.dev/cached-email-validation-apis/graph8/free/llms.txt): $0.00 per 1,000, 33% complete, stored
- [EmailDetective, free, Free, POST /emails](https://datacircle.dev/cached-email-validation-apis/emaildetective/free-free-post-emails/llms.txt): $0.00 per 1,000, 83% complete, stored
- [Emailit, free](https://datacircle.dev/cached-email-validation-apis/emailit/free/llms.txt): $0.00 per 1,000, 67% complete, stored (has MX records: live)
- [KaijuVerifier, free, Free, POST /api/v1/jobs](https://datacircle.dev/cached-email-validation-apis/kaijuverifier/free-free-post-api-v1-jobs/llms.txt): $0.00 per 1,000, 50% complete, stored

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-23.

- https://api.botoi.com/openapi.json
- https://botoi.com/
- https://botoi.com/api/lookup/email-mx-verify/
- https://botoi.com/llms.txt
- https://botoi.com/pricing/
- https://botoi.com/terms/