# Agent Utility Suite, pay as you go: Email verification API

> Is this email address real and safe to send to? Syntax, mail servers, disposable, free and role addresses, typos with a suggestion, SPF and DMARC.

Agent Utility Suite's x402 pay per call plan for the email verification API costs $1.00 per 1,000 emails. We check each provider's docs for 6 fields. Agent Utility Suite's docs list 4: Address, Deliverability, Confidence, Company.
We haven't run Agent Utility Suite 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 67% 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/agent-utility-suite/pay-as-you-go
- [Email validation API: best verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://x402-agent-api.onrender.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `POST https://x402-agent-api.onrender.com/api/v1/email-verify`
- API key: not needed
- Its API docs: https://x402-agent-api.onrender.com/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing#/paths/~1api~1v1~1email-verify
- Sold by: Agent Utility Suite (https://x402-agent-api.onrender.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-09

## In the answer

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

## Price

- $ per 1,000 emails: $1.00
- Per: call
- Billing: pay as you go

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000: $0.00

## Catch-all

- $ per 1,000: $1.00

## In their words

- Their pitch: Is this email address real and safe to send to? Syntax, mail servers, disposable, free and role addresses, typos with a suggestion, SPF and DMARC.

## 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
- Method: POST
- Path: /api/v1/email-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 20 fields the plan's answer can hold

email, local part, domain, verdict, score, reasons, syntax valid, MX found, accepts mail, null MX, disposable, free provider, role account, SPF found, DMARC found, MX host, email provider, did you mean, mailbox checked, next calls

## Agent Utility Suite's plans (1)

- [Agent Utility Suite, pay as you go](https://datacircle.dev/validate-email-apis/agent-utility-suite/pay-as-you-go/llms.txt): $1.00 per 1,000, 67% complete

## Agent Utility Suite's calls for this API (1)

- `POST /api/v1/email-verify`: [Agent Utility Suite, pay as you go](https://datacircle.dev/validate-email-apis/agent-utility-suite/pay-as-you-go/llms.txt)

## Agent Utility Suite's APIs (4)

- [Agent Utility Suite: company enrichment API pricing, 1 plan](https://datacircle.dev/company-enrichment-apis/agent-utility-suite/pay-as-you-go/llms.txt)
- [Agent Utility Suite: tech stack API pricing, 1 plan](https://datacircle.dev/company-technology-apis/agent-utility-suite/pay-as-you-go/llms.txt)
- [Agent Utility Suite: email verification API pricing, 1 plan](https://datacircle.dev/validate-email-apis/agent-utility-suite/pay-as-you-go/llms.txt)
- [Agent Utility Suite: web scraping API pricing, 1 plan, POST /api/v1/scrape-batch](https://datacircle.dev/web-scraping-apis/agent-utility-suite/pay-as-you-go-x402-pay-per-call-post-api-v1-scrape-batch/llms.txt)
- [Agent Utility Suite: web scraping API pricing, 1 plan, POST /api/v1/scrape-markdown](https://datacircle.dev/web-scraping-apis/agent-utility-suite/pay-as-you-go-x402-pay-per-call-post-api-v1-scrape-markdown/llms.txt)

## Agent Utility Suite: email verification API alternatives

- [Prime Verifier, $200 pack, Pay-As-You-Go 200,000 credits, POST /v1/verify/single](https://datacircle.dev/validate-email-apis/prime-verifier/200-pack-pay-as-you-go-200000-credits-post-v1-verify-single/llms.txt): $1.00 per 1,000, 50% complete
- [BillionVerify, $20 pack, Starter, POST /verify/bulk](https://datacircle.dev/validate-email-apis/billionverify/20-pack-starter-post-verify-bulk/llms.txt): $1.00 per 1,000, 67% complete, live
- [MillionPhones, $100 monthly](https://datacircle.dev/validate-email-apis/millionphones/100-monthly/llms.txt): $1.00 per 1,000, 33% complete, live
- [DeBounce, top-up from $200, 200K credits, GET /v1/, Single email validation](https://datacircle.dev/validate-email-apis/debounce/top-up-from-200-200k-credits-get-v1/llms.txt): $1.00 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 2026-11-09.

- https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://x402-agent-api.onrender.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://x402-agent-api.onrender.com/.well-known/x402?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://x402-agent-api.onrender.com/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://x402-agent-api.onrender.com/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing