# Mailthentic, $9 pack, Starter (pay as you go), POST /api/verify/bulk: Email verification API

> Integrate real-time email verification into your app, forms, or workflows with our simple JSON API.

Mailthentic's email verification API on its Starter (pay as you go) plan. It costs $4.50 per 1,000 emails. It returns 4 of the 6 key fields we check: Address, Deliverability, Confidence, Company.
We haven't run Mailthentic through [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt) yet.
Half of the 3,753 plans we rank by price cost $1.98 per 1,000 emails or less. This plan costs less per 1,000 emails than 25% of the 3,753 plans.
[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.
[MailTester Ninja](https://datacircle.dev/validate-email-apis/mailtester-ninja/23-99-monthly/llms.txt), [Enrich.so](https://datacircle.dev/validate-email-apis/enrich-so/499-monthly/llms.txt) and [GetProspect](https://datacircle.dev/validate-email-apis/getprospect/369-pack/llms.txt) are the best email verification API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-email-apis/mailthentic/9-pack-starter-pay-as-you-go-post-api-verify-bulk
- [Email validation API: 180+ verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://mailthentic.com/pricing/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `POST https://mailthentic.com/api/verify/bulk`
- API key: with the plan, on https://mailthentic.com/pricing/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Its API docs: https://mailthentic.com/email-verification-api/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Sold by: Mailthentic (https://mailthentic.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-05

## In the answer

- Completeness: 67%
- Address: ✓
- Deliverability: ✓
- Confidence: ✓
- Company: ✓

## Price

- $ per 1,000 emails: $4.50
- Per: result
- Billing: pay first

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Single verification

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $4.50

## Catch-all

- $ per 1,000: $4.50

## In their words

- Their pitch: Integrate real-time email verification into your app, forms, or workflows with our simple JSON API.

## Data

- Freshness: live
- What it checks: format, mail servers, disposable domains, role addresses, mailbox
- Keep data: no limit
- Use data: You may use Mailthentic only for lawful business purposes. You must not: Use the platform for unlawful data collection, harassment, or spam. Attempt to circumvent rate limits, credit controls, or security measures. Share, resell, or redistribute verification results as a competing service. Upload data you do not have lawful authority to process. Abuse promotional codes by creating duplicate accounts or using codes not intended for you.

## Plan

- Pay: $9
- You get: 2,000 credits
- Enough for: 2,000 results
- Expires: never

## Rate limit

- Batch: 2,500

## Speed

- Answer: by polling

## The call

- You send: file
- Method: POST
- Path: /api/verify/bulk

## About the plan

- Plan: Starter (pay as you go)
- Who can get it: anyone using it for lawful business purposes

## The 22 fields the plan's answer can hold

email address, domain, status, reason, confidence score, confidence breakdown, syntax valid, DNS valid, MX found, MX provider type, MX hosts, SMTP connectable, mailbox confirmed, SMTP response, catch-all, SPF present, DKIM present, DMARC present, disposable, role, free, campaign readiness

## Mailthentic's plans (23)

- [Mailthentic, $9 pack, Starter (pay as you go), POST /api/verify/bulk](https://datacircle.dev/validate-email-apis/mailthentic/9-pack-starter-pay-as-you-go-post-api-verify-bulk/llms.txt): $4.50 per 1,000, 67% complete, live
- [Mailthentic, $19 pack, Growth (pay as you go), POST /api/verify/bulk](https://datacircle.dev/validate-email-apis/mailthentic/19-pack-growth-pay-as-you-go-post-api-verify-bulk/llms.txt): $3.80 per 1,000, 67% complete, live
- [Mailthentic, $29 pack, Business (pay as you go), POST /api/verify/bulk](https://datacircle.dev/validate-email-apis/mailthentic/29-pack-business-pay-as-you-go-post-api-verify-bulk/llms.txt): $2.90 per 1,000, 67% complete, live
- [Mailthentic, $59 pack, Scale (pay as you go), POST /api/verify/bulk](https://datacircle.dev/validate-email-apis/mailthentic/59-pack-scale-pay-as-you-go-post-api-verify-bulk/llms.txt): $2.36 per 1,000, 67% complete, live
- [Mailthentic, $99 pack, Scale Plus (pay as you go), POST /api/verify/bulk](https://datacircle.dev/validate-email-apis/mailthentic/99-pack-scale-plus-pay-as-you-go-post-api-verify-bulk/llms.txt): $1.98 per 1,000, 67% complete, live
- [Mailthentic, $169 pack, Bulk (pay as you go), POST /api/verify/bulk](https://datacircle.dev/validate-email-apis/mailthentic/169-pack-bulk-pay-as-you-go-post-api-verify-bulk/llms.txt): $1.69 per 1,000, 67% complete, live
- [Mailthentic, $349 pack, Bulk Plus (pay as you go), POST /api/verify/bulk](https://datacircle.dev/validate-email-apis/mailthentic/349-pack-bulk-plus-pay-as-you-go-post-api-verify-bulk/llms.txt): $1.396 per 1,000, 67% complete, live
- [Mailthentic, $599 pack, Enterprise (pay as you go), POST /api/verify/bulk](https://datacircle.dev/validate-email-apis/mailthentic/599-pack-enterprise-pay-as-you-go-post-api-verify-bulk/llms.txt): $1.198 per 1,000, 67% complete, live
- [Mailthentic, $999 pack, Enterprise Plus (pay as you go), POST /api/verify/bulk](https://datacircle.dev/validate-email-apis/mailthentic/999-pack-enterprise-plus-pay-as-you-go-post-api-verify-bulk/llms.txt): $0.999 per 1,000, 67% complete, live
- [Mailthentic, $9.99 monthly, Starter (monthly), POST /api/verify/bulk](https://datacircle.dev/validate-email-apis/mailthentic/9-99-monthly-starter-monthly-post-api-verify-bulk/llms.txt): $0.999 per 1,000, 67% complete, live
- [Mailthentic, $19.99 monthly, Growth (monthly), POST /api/verify/bulk](https://datacircle.dev/validate-email-apis/mailthentic/19-99-monthly-growth-monthly-post-api-verify-bulk/llms.txt): $0.666 per 1,000, 67% complete, live
- [Mailthentic, $29.99 monthly, Business (monthly), POST /api/verify/bulk](https://datacircle.dev/validate-email-apis/mailthentic/29-99-monthly-business-monthly-post-api-verify-bulk/llms.txt): $0.60 per 1,000, 67% complete, live
- [Mailthentic, $49.99 monthly, Pro (monthly), POST /api/verify/bulk](https://datacircle.dev/validate-email-apis/mailthentic/49-99-monthly-pro-monthly-post-api-verify-bulk/llms.txt): $0.50 per 1,000, 67% complete, live
- [Mailthentic, $99.99 monthly, Scale (monthly), POST /api/verify/bulk](https://datacircle.dev/validate-email-apis/mailthentic/99-99-monthly-scale-monthly-post-api-verify-bulk/llms.txt): $0.40 per 1,000, 67% complete, live
- [Mailthentic, $179.99 monthly, Agency (monthly), POST /api/verify/bulk](https://datacircle.dev/validate-email-apis/mailthentic/179-99-monthly-agency-monthly-post-api-verify-bulk/llms.txt): $0.36 per 1,000, 67% complete, live
- [Mailthentic, $299.99 monthly, Enterprise (monthly), POST /api/verify/bulk](https://datacircle.dev/validate-email-apis/mailthentic/299-99-monthly-enterprise-monthly-post-api-verify-bulk/llms.txt): $0.30 per 1,000, 67% complete, live
- [Mailthentic, $99 yearly, Starter (yearly), POST /api/verify/bulk](https://datacircle.dev/validate-email-apis/mailthentic/99-yearly-starter-yearly-post-api-verify-bulk/llms.txt): $0.825 per 1,000, 67% complete, live
- [Mailthentic, $199 yearly, Growth (yearly), POST /api/verify/bulk](https://datacircle.dev/validate-email-apis/mailthentic/199-yearly-growth-yearly-post-api-verify-bulk/llms.txt): $0.553 per 1,000, 67% complete, live
- [Mailthentic, $299 yearly, Business (yearly), POST /api/verify/bulk](https://datacircle.dev/validate-email-apis/mailthentic/299-yearly-business-yearly-post-api-verify-bulk/llms.txt): $0.498 per 1,000, 67% complete, live
- [Mailthentic, $499 yearly, Pro (yearly), POST /api/verify/bulk](https://datacircle.dev/validate-email-apis/mailthentic/499-yearly-pro-yearly-post-api-verify-bulk/llms.txt): $0.416 per 1,000, 67% complete, live
- [Mailthentic, $999 yearly, Scale (yearly), POST /api/verify/bulk](https://datacircle.dev/validate-email-apis/mailthentic/999-yearly-scale-yearly-post-api-verify-bulk/llms.txt): $0.333 per 1,000, 67% complete, live
- [Mailthentic, $1,799 yearly, Agency (yearly), POST /api/verify/bulk](https://datacircle.dev/validate-email-apis/mailthentic/1799-yearly-agency-yearly-post-api-verify-bulk/llms.txt): $0.30 per 1,000, 67% complete, live
- [Mailthentic, $2,999 yearly, Enterprise (yearly), POST /api/verify/bulk](https://datacircle.dev/validate-email-apis/mailthentic/2999-yearly-enterprise-yearly-post-api-verify-bulk/llms.txt): $0.25 per 1,000, 67% complete, live

## Mailthentic's calls (2)

- `POST /api/verify/bulk`: [Mailthentic, $9 pack, Starter (pay as you go), POST /api/verify/bulk](https://datacircle.dev/validate-email-apis/mailthentic/9-pack-starter-pay-as-you-go-post-api-verify-bulk/llms.txt)
- `POST /api/verify/single`: [Mailthentic, $9 pack, Starter (pay as you go), POST /api/verify/single](https://datacircle.dev/validate-email-apis/mailthentic/9-pack-starter-pay-as-you-go-post-api-verify-single/llms.txt)

## Mailthentic's APIs (1)

- [Mailthentic: email verification API pricing, 23 plans, POST /api/verify/bulk](https://datacircle.dev/validate-email-apis/mailthentic/9-pack-starter-pay-as-you-go-post-api-verify-bulk/llms.txt)

## Mailthentic: email verification API alternatives

- [BetterEnrich, $900 pack, One-time Payment, 40K credits, POST /api/v1/verify-catch-all-email](https://datacircle.dev/validate-email-apis/betterenrich/900-pack-one-time-payment-40k-credits-post-api-v1-verify-catch-all-email/llms.txt): $4.50 per 1,000, 17% complete, live
- [WhoisXML API, $540 yearly, Yearly subscription 10,000 Queries, GET /api/v3](https://datacircle.dev/validate-email-apis/whoisxml-api/540-yearly-yearly-subscription-10000-queries-get-api-v3/llms.txt): $4.50 per 1,000, 50% complete, live
- [MailRambo, $9 pack](https://datacircle.dev/validate-email-apis/mailrambo/9-pack/llms.txt): $4.50 per 1,000, 50% complete, live
- [Heybounce, $225 pack, Pay As You Go 50,000 credits, GET /validate](https://datacircle.dev/validate-email-apis/heybounce/225-pack-pay-as-you-go-50000-credits-get-validate/llms.txt): $4.50 per 1,000, 50% 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://mailthentic.com/api-playground/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://mailthentic.com/email-verification-api/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://mailthentic.com/help/frequently-asked-questions/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://mailthentic.com/help/insufficient-credits/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://mailthentic.com/help/managing-your-credits/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://mailthentic.com/pricing/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://mailthentic.com/terms-of-use/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing