# AgentUtility, pay as you go, Pay per call (x402), POST /email: Email verification API

> Validates an email address end to end: syntax, MX reachability, disposable/temp-mail domains, role accounts, and SPF/DMARC/DKIM posture.

AgentUtility's Pay per call (x402) plan for the email verification API costs $5.00 per 1,000 emails. AgentUtility's docs list 3 of the 6 fields on our checklist: Address, Deliverability, Confidence.
We haven't run AgentUtility through [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt) yet.
We rank 4,098 plans for email verification APIs by price. Half the plans cost $1.995 or less per 1,000 emails. This plan costs less per 1,000 emails than 22% of the 4,098 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), [looot](https://datacircle.dev/validate-email-apis/looot/top-up/llms.txt) and [MailTester Ninja](https://datacircle.dev/validate-email-apis/mailtester-ninja/23-99-monthly/llms.txt) are the best email verification API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-email-apis/agentutility/pay-as-you-go-pay-per-call-x402-post-email
- [Email validation API: best verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://agentutility.ai/web-probe/email?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `POST https://x402.agentutility.ai/email`
- API key: not needed
- Its API docs: https://agentutility.ai/web-probe/email?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Sold by: AgentUtility (https://agentutility.ai?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-08

## In the answer

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

## Price

- $ per 1,000 emails: $5.00
- Per: call
- Billing: pay as you go

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## In their words

- Their pitch: Validates an email address end to end: syntax, MX reachability, disposable/temp-mail domains, role accounts, and SPF/DMARC/DKIM posture.

## Data

- What it checks: format, mail servers, disposable domains, role addresses
- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: per call

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: email. Optional: dkim_selectors
- Method: POST
- Path: /email

## About the plan

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

## The 5 fields the plan's answer can hold

email address, deliverability score, risk level, can receive mail, verification level

## AgentUtility's plans (1)

- [AgentUtility, pay as you go, Pay per call (x402), POST /email](https://datacircle.dev/validate-email-apis/agentutility/pay-as-you-go-pay-per-call-x402-post-email/llms.txt): $5.00 per 1,000, 50% complete

## AgentUtility's calls for this API (3)

- `POST /disposable-email-check`: [AgentUtility, pay as you go, Pay per call (x402), POST /disposable-email-check](https://datacircle.dev/validate-email-apis/agentutility/pay-as-you-go-pay-per-call-x402-post-disposable-email-check/llms.txt)
- `POST /email`: [AgentUtility, pay as you go, Pay per call (x402), POST /email](https://datacircle.dev/validate-email-apis/agentutility/pay-as-you-go-pay-per-call-x402-post-email/llms.txt)
- `POST /email-deliverability-check`: [AgentUtility, pay as you go, Pay per call (x402), POST /email-deliverability-check](https://datacircle.dev/validate-email-apis/agentutility/pay-as-you-go-pay-per-call-x402-post-email-deliverability-check/llms.txt)

## AgentUtility's APIs (8)

- [AgentUtility: search autocomplete API pricing, 1 plan](https://datacircle.dev/search-autocomplete-apis/agentutility/pay-as-you-go/llms.txt)
- [AgentUtility: people enrichment API pricing, 1 plan, POST /b2b-lead-enrich](https://datacircle.dev/person-enrichment-apis/agentutility/pay-as-you-go-pay-per-call-x402-post-b2b-lead-enrich/llms.txt)
- [AgentUtility: people enrichment API pricing, 1 plan, POST /contact-enrich](https://datacircle.dev/person-enrichment-apis/agentutility/pay-as-you-go-pay-per-call-x402-post-contact-enrich/llms.txt)
- [AgentUtility: people enrichment API pricing, 1 plan, POST /lead-enrich](https://datacircle.dev/person-enrichment-apis/agentutility/pay-as-you-go-pay-per-call-x402-post-lead-enrich/llms.txt)
- [AgentUtility: people enrichment API pricing, 1 plan, POST /people-enrich](https://datacircle.dev/person-enrichment-apis/agentutility/pay-as-you-go-pay-per-call-x402-post-people-enrich/llms.txt)
- [AgentUtility: people enrichment API pricing, 1 plan, POST /people-search](https://datacircle.dev/person-enrichment-apis/agentutility/pay-as-you-go-pay-per-call-x402-post-people-search/llms.txt)
- [AgentUtility: people enrichment API pricing, 1 plan, POST /person-enrich](https://datacircle.dev/person-enrichment-apis/agentutility/pay-as-you-go-pay-per-call-x402-post-person-enrich/llms.txt)
- [AgentUtility: web scraping API pricing, 1 plan, POST /browser-render](https://datacircle.dev/web-scraping-apis/agentutility/pay-as-you-go-pay-per-call-x402-post-browser-render/llms.txt)
- [AgentUtility: web scraping API pricing, 1 plan, POST /scrape](https://datacircle.dev/web-scraping-apis/agentutility/pay-as-you-go-pay-per-call-x402-post-scrape/llms.txt)
- [AgentUtility: web scraping API pricing, 1 plan, POST /scrape-website](https://datacircle.dev/web-scraping-apis/agentutility/pay-as-you-go-pay-per-call-x402-post-scrape-website/llms.txt)
- [AgentUtility: web scraping API pricing, 1 plan, POST /url-to-markdown](https://datacircle.dev/web-scraping-apis/agentutility/pay-as-you-go-pay-per-call-x402-post-url-to-markdown/llms.txt)
- [AgentUtility: company enrichment API pricing, 1 plan, POST /company-dossier](https://datacircle.dev/company-enrichment-apis/agentutility/pay-as-you-go-pay-per-call-x402-post-company-dossier/llms.txt)
- [AgentUtility: company enrichment API pricing, 1 plan, POST /company-enrich](https://datacircle.dev/company-enrichment-apis/agentutility/pay-as-you-go-pay-per-call-x402-post-company-enrich/llms.txt)
- [AgentUtility: company enrichment API pricing, 1 plan, POST /company-intel-pack](https://datacircle.dev/company-enrichment-apis/agentutility/pay-as-you-go-pay-per-call-x402-post-company-intel-pack/llms.txt)
- [AgentUtility: company enrichment API pricing, 1 plan, POST /domain-enrich](https://datacircle.dev/company-enrichment-apis/agentutility/pay-as-you-go-pay-per-call-x402-post-domain-enrich/llms.txt)
- [AgentUtility: news API pricing, 1 plan, POST /crypto-news](https://datacircle.dev/news-apis/agentutility/pay-as-you-go-pay-per-call-x402-post-crypto-news/llms.txt)
- [AgentUtility: news API pricing, 1 plan, POST /stocks-news](https://datacircle.dev/news-apis/agentutility/pay-as-you-go-pay-per-call-x402-post-stocks-news/llms.txt)
- [AgentUtility: email verification API pricing, 1 plan, POST /email](https://datacircle.dev/validate-email-apis/agentutility/pay-as-you-go-pay-per-call-x402-post-email/llms.txt)
- [AgentUtility: Hacker News search API pricing, 1 plan, POST /hacker-news-search](https://datacircle.dev/hacker-news-search-apis/agentutility/pay-as-you-go-pay-per-call-x402-post-hacker-news-search/llms.txt)
- [AgentUtility: Hacker News search API pricing, 1 plan, POST /hn-search](https://datacircle.dev/hacker-news-search-apis/agentutility/pay-as-you-go-pay-per-call-x402-post-hn-search/llms.txt)
- [AgentUtility: domain WHOIS API pricing, 1 plan, POST /whois](https://datacircle.dev/domain-whois-apis/agentutility/pay-as-you-go-pay-per-call-x402-post-whois/llms.txt)
- [AgentUtility: domain WHOIS API pricing, 1 plan, POST /whois-lookup](https://datacircle.dev/domain-whois-apis/agentutility/pay-as-you-go-pay-per-call-x402-post-whois-lookup/llms.txt)

## AgentUtility: email verification API alternatives

- [MillionPhones, top-up from $5](https://datacircle.dev/validate-email-apis/millionphones/top-up-from-5/llms.txt): $5.00 per 1,000, 33% complete, live
- [NullBounce, $5 pack](https://datacircle.dev/validate-email-apis/nullbounce/5-pack/llms.txt): $5.00 per 1,000, 33% complete, live
- [Qualisend, $5 monthly, Pro, 1,000 credits a month, POST /verify/bulk](https://datacircle.dev/validate-email-apis/qualisend/5-monthly-pro-1000-credits-a-month-post-verify-bulk/llms.txt): $5.00 per 1,000, 50% complete, live
- [MailProbe, $5 pack](https://datacircle.dev/validate-email-apis/mailprobe/5-pack/llms.txt): $5.00 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 2026-11-08.

- https://agentutility.ai?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://agentutility.ai/start?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://agentutility.ai/web-probe/email?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://x402.agentutility.ai/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://x402.agentutility.ai/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing