# NoJunk, pay as you go: Email verification API

> Email address verification for AI agents: RFC 5322 syntax check, live MX/A DNS lookup, disposable-domain detection, role-address and free-mail-provider flags, typo suggestions (gmial.com -> gmail.com), normalized form and a low/medium/high risk score. One address or up to 20 per request, same price. No mailbox probing.

NoJunk's x402 pay per call plan for the email verification API costs $0.05 per 1,000 emails. We check each provider's docs for 6 fields. NoJunk's docs list 3: Address, Deliverability, Company.
We haven't run NoJunk through [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt) yet.
We rank 4,337 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 96% of the 4,337 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. 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/nojunk/pay-as-you-go
- [Email validation API: best verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://nojunkcrypto.com/services?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `GET https://nojunk-email-check.mick8511.workers.dev/verify`
- API key: not needed
- Its API docs: https://nojunk-email-check.mick8511.workers.dev/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing#/paths/~1verify
- Sold by: NoJunk (https://nojunkcrypto.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-09

## In the answer

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

## Price

- $ per 1,000 emails: $0.05
- Per: result
- Billing: pay as you go

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## In their words

- Their pitch: Email address verification for AI agents: RFC 5322 syntax check, live MX/A DNS lookup, disposable-domain detection, role-address and free-mail-provider flags, typo suggestions (gmial.com -> gmail.com), normalized form and a low/medium/high risk score. One address or up to 20 per request, same price. No mailbox probing.

## Data

- What it checks: format, mail servers, disposable domains, role addresses
- Keep data: no limit
- Use data: You can share links to our pages and quote short parts with a link back. Please don't copy whole pages or resell our results.

## Plan

- Pay: per call

## Rate limit

- Batch: 20

## Speed

- Answer: in the call

## The call

- You send: one of email or emails
- Method: GET
- Path: /verify

## About the plan

- Plan: x402 pay per call
- Who can get it: anyone with a wallet paying USDC on Base (x402), no account or API key

## The 15 fields the plan's answer can hold

count, email, normalized email, valid syntax, domain, has MX, MX hosts, disposable, role, free provider, suggestion, risk, reasons, resolver, note

## NoJunk's plans (1)

- [NoJunk, pay as you go](https://datacircle.dev/validate-email-apis/nojunk/pay-as-you-go/llms.txt): $0.05 per 1,000, 50% complete

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

- `GET /verify`: [NoJunk, pay as you go](https://datacircle.dev/validate-email-apis/nojunk/pay-as-you-go/llms.txt)

## NoJunk's APIs (6)

- [NoJunk: company enrichment API pricing, 1 plan](https://datacircle.dev/company-enrichment-apis/nojunk/pay-as-you-go/llms.txt)
- [NoJunk: domain WHOIS API pricing, 1 plan](https://datacircle.dev/domain-whois-apis/nojunk/pay-as-you-go/llms.txt)
- [NoJunk: email verification API pricing, 1 plan](https://datacircle.dev/validate-email-apis/nojunk/pay-as-you-go/llms.txt)
- [NoJunk: news API pricing, 1 plan](https://datacircle.dev/news-apis/nojunk/pay-as-you-go/llms.txt)
- [NoJunk: web scraping API pricing, 1 plan](https://datacircle.dev/web-scraping-apis/nojunk/pay-as-you-go/llms.txt)
- [NoJunk: web search API pricing, 1 plan](https://datacircle.dev/web-search-apis/nojunk/pay-as-you-go/llms.txt)

## NoJunk: email verification API alternatives

- [Stormap, free, No key](https://datacircle.dev/validate-email-apis/stormap/free-no-key/llms.txt): $0.00 per 1,000, 50% complete
- [Vetto, $69 pack](https://datacircle.dev/validate-email-apis/vetto/69-pack/llms.txt): $0.048 per 1,000, 17% complete
- [VerifyKit, $249 monthly, Unlimited, POST /v1/verify](https://datacircle.dev/validate-email-apis/verifykit/249-monthly-unlimited-post-v1-verify/llms.txt): $0.05 per 1,000, 67% complete, live
- [CleanTalk, $450 monthly, 9,000,000 checks a month, 1 month, POST /](https://datacircle.dev/validate-email-apis/cleantalk/450-monthly-9000000-checks-a-month-1-month-post/llms.txt): $0.05 per 1,000, 33% complete
- [SimpleVerifier, $49.99 monthly, Pro + Phone, POST /lists](https://datacircle.dev/validate-email-apis/simpleverifier/49-99-monthly-pro-phone-post-lists/llms.txt): $0.05 per 1,000, 50% complete, 14 days

## 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://nojunk-email-check.mick8511.workers.dev?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://nojunk-email-check.mick8511.workers.dev/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://nojunkcrypto.com/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://nojunkcrypto.com/services?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://nojunkcrypto.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing