# Resolve402, pay as you go: Email verification API

> Email pre-check with a 0-100 deliverability score and reasons (DNS only, mailbox not tested).

Resolve402's Pay per call (x402) plan for the email verification API costs $3.00 per 1,000 emails. Resolve402's docs list 4 of the 6 fields on our checklist: Address, Deliverability, Confidence, Company.
We haven't run Resolve402 through [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt) yet.
Half of the 4,041 plans we rank by price cost $1.999 per 1,000 emails or less. This plan costs less per 1,000 emails than 37% of the 4,041 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/resolve402/pay-as-you-go
- [Email validation API: 210+ verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://resolve402.dev?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `GET https://resolve402.dev/api/verify-email`
- API key: not needed
- Its API docs: https://resolve402.dev/services/verify-email?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Sold by: Resolve402 (https://resolve402.dev?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-07

## In the answer

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

## Price

- $ per 1,000 emails: $3.00
- Per: call
- Billing: pay as you go

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## Catch-all

- $ per 1,000: $3.00

## In their words

- Their pitch: Email pre-check with a 0-100 deliverability score and reasons (DNS only, mailbox not tested).

## 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: GET
- Path: /api/verify-email

## About the plan

- Plan: Pay per call (x402)
- Who can get it: anyone with a USDC wallet on Base or Solana

## The 20 fields the plan's answer can hold

email, syntax valid, domain, free webmail, disposable, role account, has MX, MX records, mail provider, deliverable, mailbox checked, score, score band, reasons, null MX, SPF, DMARC, DMARC policy, accept all, SMTP check

## Resolve402's plans (1)

- [Resolve402, pay as you go](https://datacircle.dev/validate-email-apis/resolve402/pay-as-you-go/llms.txt): $3.00 per 1,000, 67% complete

## Resolve402's calls for this API (1)

- `GET /api/verify-email`: [Resolve402, pay as you go](https://datacircle.dev/validate-email-apis/resolve402/pay-as-you-go/llms.txt)

## Resolve402's APIs (5)

- [Resolve402: company discovery API pricing, 2 plans](https://datacircle.dev/company-discovery-apis/resolve402/free/llms.txt)
- [Resolve402: people search API pricing, 2 plans](https://datacircle.dev/people-search-apis/resolve402/free/llms.txt)
- [Resolve402: business verification API pricing, 1 plan](https://datacircle.dev/business-verification-apis/resolve402/pay-as-you-go/llms.txt)
- [Resolve402: company open jobs API pricing, 1 plan](https://datacircle.dev/company-open-job-apis/resolve402/pay-as-you-go/llms.txt)
- [Resolve402: email verification API pricing, 1 plan](https://datacircle.dev/validate-email-apis/resolve402/pay-as-you-go/llms.txt)

## Resolve402: email verification API alternatives

- [Prime Verifier, $15 pack, Pay-As-You-Go 5,000 credits, POST /v1/verify/single](https://datacircle.dev/validate-email-apis/prime-verifier/15-pack-pay-as-you-go-5000-credits-post-v1-verify-single/llms.txt): $3.00 per 1,000, 50% complete
- [DeBounce, top-up from $15, 5K credits, GET /v1/, Single email validation](https://datacircle.dev/validate-email-apis/debounce/top-up-from-15-5k-credits-get-v1/llms.txt): $3.00 per 1,000, 50% complete, live
- [OrbiSearch, $30 pack, Starter, POST /v1/bulk](https://datacircle.dev/validate-email-apis/orbisearch/30-pack-starter-post-v1-bulk/llms.txt): $3.00 per 1,000, 50% complete, live
- [ExactVerify, $15 pack, Pay-As-You-Go from 5,000 emails, GET /v1/single](https://datacircle.dev/validate-email-apis/exactverify/15-pack-pay-as-you-go-from-5000-emails-get-v1-single/llms.txt): $3.00 per 1,000, 33% 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 2026-11-07.

- https://resolve402.dev?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://resolve402.dev/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://resolve402.dev/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://resolve402.dev/privacy?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://resolve402.dev/services/verify-email?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing