# Arch Tools, free: Email verification API

> Format check + MX record lookup + disposable domain detection. Returns deliverable: true/false with breakdown.

Arch Tools's email verification API on its Free plan. It costs $0.00 per 1,000 emails. It returns 1 of the 6 key fields we check: Deliverability.
We ran Arch Tools in [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt). We didn't score any Arch Tools plan.
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.
[pingutil](https://datacircle.dev/validate-email-apis/pingutil/free-api-key-post-v1-verify/llms.txt), [MailTester Ninja](https://datacircle.dev/validate-email-apis/mailtester-ninja/23-99-monthly/llms.txt) and [Giggal](https://datacircle.dev/validate-email-apis/giggal/39-pack-50000-credits-post-v1-verify/llms.txt) are the best email verification API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-email-apis/arch-tools/free
- [Email validation API: 190+ verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://archtools.dev/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `POST https://archtools.dev/v1/tools/email-verify`
- API key: with the plan, on https://archtools.dev/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Its API docs: https://archtools.dev/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing#email-verify
- Sold by: Arch Tools (https://archtools.dev?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-05

## In the answer

- Completeness: 17%
- Deliverability: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: 62 other calls

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Format check + MX record lookup + disposable domain detection. Returns deliverable: true/false with breakdown.

## Data

- What it checks: format, mail servers, disposable domains
- Keep data: no limit
- Use data: Your use of the Service is governed by our full Acceptable Use Policy, which is incorporated into these Terms. In summary, you agree not to: Use the Service for any unlawful purpose, or violate any third-party rights or applicable laws [...] Reverse engineer, scrape, copy, resell, or sublicense the Service, or resell, transfer, or redistribute your API key or credits [...] Attempt to exceed rate limits, bypass authentication or billing, or abuse the platform [...] Use the Service to generate spam, malware, phishing, or harmful content

## Plan

- Pay: $0
- You get: 100 credits
- Enough for: about 33 calls

## Rate limit

- Per day: 500
- Per second: 0.17
- Concurrent: 5
- Batch: 1

## Speed

- Answer: in the call

## The call

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

## About the plan

- Plan: Free
- Who can get it: anyone aged 18 or over with a valid email address

## The 3 fields the plan's answer can hold

deliverable, MX record, disposable

## Arch Tools's plans (9)

- [Arch Tools, free](https://datacircle.dev/validate-email-apis/arch-tools/free/llms.txt): $0.00 per 1,000, 17% complete
- [Arch Tools, $9 pack](https://datacircle.dev/validate-email-apis/arch-tools/9-pack/llms.txt): $9.00 per 1,000, 17% complete
- [Arch Tools, $49 pack](https://datacircle.dev/validate-email-apis/arch-tools/49-pack/llms.txt): $5.88 per 1,000, 17% complete
- [Arch Tools, $199 pack](https://datacircle.dev/validate-email-apis/arch-tools/199-pack/llms.txt): $4.776 per 1,000, 17% complete
- [Arch Tools, $19 monthly](https://datacircle.dev/validate-email-apis/arch-tools/19-monthly/llms.txt): $5.70 per 1,000, 17% complete
- [Arch Tools, $49 monthly](https://datacircle.dev/validate-email-apis/arch-tools/49-monthly/llms.txt): $4.90 per 1,000, 17% complete
- [Arch Tools, $99 monthly](https://datacircle.dev/validate-email-apis/arch-tools/99-monthly/llms.txt): $3.96 per 1,000, 17% complete
- [Arch Tools, $199 monthly](https://datacircle.dev/validate-email-apis/arch-tools/199-monthly/llms.txt): $3.411 per 1,000, 17% complete
- [Arch Tools, contact us](https://datacircle.dev/validate-email-apis/arch-tools/contact-us/llms.txt): 17% complete

## Arch Tools's calls for this API (1)

- `POST /v1/tools/email-verify`: [Arch Tools, free](https://datacircle.dev/validate-email-apis/arch-tools/free/llms.txt)

## Arch Tools's APIs (4)

- [Arch Tools: email verification API pricing, 9 plans](https://datacircle.dev/validate-email-apis/arch-tools/free/llms.txt)
- [Arch Tools: phone validation API pricing, 9 plans](https://datacircle.dev/validate-phone-apis/arch-tools/free/llms.txt)
- [Arch Tools: SERP API pricing, 9 plans](https://datacircle.dev/serp-apis/arch-tools/free/llms.txt)
- [Arch Tools: web scraping API pricing, 9 plans, POST /v1/tools/extract-metadata](https://datacircle.dev/web-scraping-apis/arch-tools/free-post-v1-tools-extract-metadata/llms.txt)
- [Arch Tools: web scraping API pricing, 9 plans, POST /v1/tools/extract-page](https://datacircle.dev/web-scraping-apis/arch-tools/free-post-v1-tools-extract-page/llms.txt)
- [Arch Tools: web scraping API pricing, 9 plans, POST /v1/tools/web-scrape](https://datacircle.dev/web-scraping-apis/arch-tools/free-post-v1-tools-web-scrape/llms.txt)

## Arch Tools: email verification API alternatives

- [BounceBan, $85 monthly, 25,000 Credits, Monthly subscription (15% off), GET /v1/verify/single, Single email verification (Clay, N8N, and other waterfall services)](https://datacircle.dev/validate-email-apis/bounceban/85-monthly-25000-credits-monthly-subscription-15-off-get-v1-verify-single-single-email-verification-clay-n8n-and-other-waterfall-services/llms.txt): $3.40 per 1,000, 50% complete, live
- [EmailAddress.ai, $170 monthly, Growth, POST /v1/verify](https://datacircle.dev/validate-email-apis/emailaddress-ai/170-monthly-growth-post-v1-verify/llms.txt): $3.40 per 1,000, 50% complete, live
- [EmailListVerify, top-up from $17, 5,000 credits, GET /api/verifyEmailDetailed](https://datacircle.dev/validate-email-apis/emaillistverify/top-up-from-17-5000-credits-get-api-verifyemaildetailed/llms.txt): $3.40 per 1,000, 50% complete, live
- [Emailchaser, $8,970 yearly](https://datacircle.dev/validate-email-apis/emailchaser/8970-yearly/llms.txt): $3.40 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 2026-11-05.

- https://archtools.dev?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://archtools.dev/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://archtools.dev/faq?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://archtools.dev/legal/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://archtools.dev/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://archtools.dev/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing