# Grokzilla, pay as you go: Email verification API

> Check an email address for deliverability: syntax, canonical form, MX, SPF, DMARC, disposable domain. One verdict with reasons and sources. DNS-over-HTTPS only, no mailbox probing.

Grokzilla's x402 pay per call plan for the email verification API costs $3.20 per 1,000 emails. We check each provider's docs for 6 fields. Grokzilla's docs list 4: Address, Deliverability, Confidence, Company.
We haven't run Grokzilla through [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt) yet.
We rank 4,767 plans for email verification APIs by price. Half the plans cost $2.00 or less per 1,000 emails. This plan costs less per 1,000 emails than 35% of the 4,767 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. [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, and costs less up front than treg's top-up from $10.
[Validemail.co](https://datacircle.dev/validate-email-apis/validemail-co/9-90-monthly-9-90-month-get-api-v1-validate/llms.txt), [pingutil](https://datacircle.dev/validate-email-apis/pingutil/free-api-key-post-v1-verify/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/grokzilla/pay-as-you-go
- [Email validation API: best verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://grokzilla.shop/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `POST https://grokzilla.shop/api/skills/email-check`
- API key: not needed
- Its API docs: https://grokzilla.shop/docs/email-check?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Sold by: Grokzilla (https://grokzilla.shop?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-10

## In the answer

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

## Price

- $ per 1,000 emails: $3.20
- Per: call
- Billing: pay as you go

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000 calls that find nothing: $0.00

## In their words

- Their pitch: Check an email address for deliverability: syntax, canonical form, MX, SPF, DMARC, disposable domain. One verdict with reasons and sources. DNS-over-HTTPS only, no mailbox probing.

## Data

- What it checks: format, mail servers, disposable domains
- Keep data: no limit
- Use data: Use public-data skills lawfully and within the source sites' terms.

## Plan

- Pay: per call

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: email. Optional: request_id
- Method: POST
- Path: /api/skills/email-check

## About the plan

- Plan: x402 pay per call
- Who can get it: anyone, no account or API key

## The 33 fields the plan's answer can hold

email, local part, domain, verdict, reasons, valid syntax, canonical email, canonical rule, plus tag, domain exists, MX records, null MX, implicit MX, MX host resolves, SPF present, SPF record, SPF count, DMARC present, DMARC record, DMARC policy, DMARC subdomain policy, DMARC percentage, DMARC reporting address, disposable domain, role account, free provider, mailbox checked, summary, confidence, sources, generated at, data as of, warnings

## Grokzilla's plans (2)

- [Grokzilla, pay as you go](https://datacircle.dev/validate-email-apis/grokzilla/pay-as-you-go/llms.txt): $3.20 per 1,000, 67% complete
- [Grokzilla, $1 pack](https://datacircle.dev/validate-email-apis/grokzilla/1-pack/llms.txt): $3.333 per 1,000, 67% complete

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

- `POST /api/skills/email-check`: [Grokzilla, pay as you go](https://datacircle.dev/validate-email-apis/grokzilla/pay-as-you-go/llms.txt)

## Grokzilla's APIs (5)

- [Grokzilla Domain WHOIS API pricing, 2 plans](https://datacircle.dev/domain-whois-apis/grokzilla/pay-as-you-go/llms.txt)
- [Grokzilla Email verification API pricing, 2 plans](https://datacircle.dev/validate-email-apis/grokzilla/pay-as-you-go/llms.txt)
- [Grokzilla IP company lookup API pricing, 2 plans](https://datacircle.dev/ip-company-lookup-apis/grokzilla/pay-as-you-go/llms.txt)
- [Grokzilla News API pricing, 1 plan](https://datacircle.dev/news-apis/grokzilla/pay-as-you-go/llms.txt)
- [Grokzilla Web scraping API pricing, 2 plans](https://datacircle.dev/web-scraping-apis/grokzilla/pay-as-you-go/llms.txt)

## Grokzilla: email verification API alternatives

[Grokzilla alternatives: other email verification API providers by price](https://datacircle.dev/grokzilla-alternatives.txt)

We list other providers' plans closest to this plan in price per 1,000 emails.

- [Verimail, $8 pack](https://datacircle.dev/validate-email-apis/verimail/8-pack/llms.txt): $3.20 per 1,000, 50% complete, live
- [Easy Email Verification, $320 pack, Pay-as-you-go, 100,000 emails, POST /bulk/upload](https://datacircle.dev/validate-email-apis/easy-email-verification/320-pack-pay-as-you-go-100000-emails-post-bulk-upload/llms.txt): $3.20 per 1,000, 50% complete, live
- [QuickEmailVerification, $320 pack, Persistent Credits, 100,000 credits, GET /v1/verify](https://datacircle.dev/validate-email-apis/quickemailverification/320-pack/llms.txt): $3.20 per 1,000, 50% complete, live
- [Bouncer, $320 monthly, Monthly Subscription, 100,000 credits, POST /v1.1/email/verify/batch](https://datacircle.dev/validate-email-apis/bouncer/320-monthly-monthly-subscription-100000-credits-post-v1-1-email-verify-batch/llms.txt): $3.20 per 1,000, 67% 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 2026-11-10.

- https://grokzilla.shop/.well-known/x402?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://grokzilla.shop/api/catalog?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://grokzilla.shop/docs/email-check?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://grokzilla.shop/docs/mcp/spend-limits?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://grokzilla.shop/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://grokzilla.shop/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://grokzilla.shop/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing