# Agent Margin Router, free: Email verification API

> Validate an email address: RFC syntax, MX/A records via DNS-over-HTTPS, disposable and free-provider detection, role-account flag, deliverability score and verdict.

Agent Margin Router's Free plan for the email verification API costs $0.00 per 1,000 emails. We check each provider's docs for 6 fields. Agent Margin Router's docs list 4: Address, Deliverability, Confidence, Company.
We ran Agent Margin Router in [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt). We didn't score any Agent Margin Router plan.
This plan is free. We rank 4,767 plans for email verification APIs by price. Half the plans cost $2.00 or less per 1,000 emails. [728 email verification API plans on our price sheet are free.](https://datacircle.dev/best-email-verification-api.txt) [pingutil's free plan](https://datacircle.dev/validate-email-apis/pingutil/free-api-key-post-v1-verify/llms.txt) scores highest of the free plans in our benchmark, at 82.3 out of 100.
[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/agent-margin-router/free
- [Email validation API: best verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://agentmarginrouter.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `POST https://agent-margin-router-production.up.railway.app/email-validate`
- API key: not needed
- Its API docs: https://agent-margin-router-production.up.railway.app/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing#/web-tools/email_validate_email_validate_post
- Sold by: Agent Margin Router (https://agentmarginrouter.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-11

## In the answer

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

## Price

- $ per 1,000 emails: $0.00
- Per: call
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: 49 other Agent Margin Router calls

## Overage

- $ per 1,000 emails: $10.00
- Units cap: soft

## Not found

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

## In their words

- Their pitch: Validate an email address: RFC syntax, MX/A records via DNS-over-HTTPS, disposable and free-provider detection, role-account flag, deliverability score and verdict.

## Data

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

## Plan

- Pay: $0
- You get: 3 requests
- Enough for: 3 calls

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: email. Optional: check_mx
- Method: POST
- Path: /email-validate

## About the plan

- Plan: Free
- Who can get it: anyone

## The 16 fields the plan's answer can hold

email address, local part, domain, valid syntax, disposable, free provider, role account, MX checked, has MX record, null MX, MX records, domain resolves, deliverability score, verdict, fetched at, cache hit

## Agent Margin Router's plans (9)

- [Agent Margin Router, free](https://datacircle.dev/validate-email-apis/agent-margin-router/free/llms.txt): $0.00 per 1,000, 67% complete
- [Agent Margin Router, pay as you go](https://datacircle.dev/validate-email-apis/agent-margin-router/pay-as-you-go/llms.txt): $10.00 per 1,000, 67% complete
- [Agent Margin Router, top-up from $5](https://datacircle.dev/validate-email-apis/agent-margin-router/top-up-from-5/llms.txt): $10.00 per 1,000, 67% complete
- [Agent Margin Router, $9 monthly](https://datacircle.dev/validate-email-apis/agent-margin-router/9-monthly/llms.txt): $0.18 per 1,000, 67% complete
- [Agent Margin Router, $49 monthly](https://datacircle.dev/validate-email-apis/agent-margin-router/49-monthly/llms.txt): $0.098 per 1,000, 67% complete
- [Agent Margin Router, $199 monthly](https://datacircle.dev/validate-email-apis/agent-margin-router/199-monthly/llms.txt): no limit, 67% complete
- [Agent Margin Router, $84 yearly](https://datacircle.dev/validate-email-apis/agent-margin-router/84-yearly/llms.txt): $0.14 per 1,000, 67% complete
- [Agent Margin Router, $468 yearly](https://datacircle.dev/validate-email-apis/agent-margin-router/468-yearly/llms.txt): $0.078 per 1,000, 67% complete
- [Agent Margin Router, $1,908 yearly](https://datacircle.dev/validate-email-apis/agent-margin-router/1908-yearly/llms.txt): no limit, 67% complete

## Agent Margin Router's calls for this API (1)

- `POST /email-validate`: [Agent Margin Router, free](https://datacircle.dev/validate-email-apis/agent-margin-router/free/llms.txt)

## Agent Margin Router's APIs (6)

- [Agent Margin Router Domain WHOIS API pricing, 9 plans](https://datacircle.dev/domain-whois-apis/agent-margin-router/free/llms.txt)
- [Agent Margin Router Email verification API pricing, 9 plans](https://datacircle.dev/validate-email-apis/agent-margin-router/free/llms.txt)
- [Agent Margin Router IP company lookup API pricing, 9 plans](https://datacircle.dev/ip-company-lookup-apis/agent-margin-router/free/llms.txt)
- [Agent Margin Router Web scraping API pricing, 9 plans](https://datacircle.dev/web-scraping-apis/agent-margin-router/free/llms.txt)
- [Agent Margin Router SERP API pricing, 9 plans](https://datacircle.dev/serp-apis/agent-margin-router/free/llms.txt)
- [Agent Margin Router GitHub repository API pricing, 9 plans](https://datacircle.dev/github-repository-apis/agent-margin-router/free/llms.txt)

## Agent Margin Router: email verification API alternatives

[Agent Margin Router alternatives: other email verification API providers by price](https://datacircle.dev/agent-margin-router-alternatives.txt)

We list Agent Margin Router's cheapest paid plan first. Next we list other providers' plans closest to Agent Margin Router in price per 1,000 emails.

- [Agent Margin Router, $468 yearly](https://datacircle.dev/validate-email-apis/agent-margin-router/468-yearly/llms.txt): $0.078 per 1,000, 67% complete
- [CleanTalk, $236.55 quarterly, 1,000,000 checks a month, 3 months (5% off), GET /, email_check](https://datacircle.dev/validate-email-apis/cleantalk/236-55-quarterly-1000000-checks-a-month-3-months-5-off-get-email-check/llms.txt): $0.079 per 1,000, 33% complete
- [Corenexis, $3.99 monthly](https://datacircle.dev/validate-email-apis/corenexis/3-99-monthly/llms.txt): $0.08 per 1,000, 50% complete
- [Neutrino API, pay as you go, On-Demand, GET /email-validate](https://datacircle.dev/validate-email-apis/neutrino-api/pay-as-you-go-on-demand-get-email-validate/llms.txt): $0.08 per 1,000, 50% complete, stored
- [Mailsfinder, $191.88 yearly, Growth annual, POST /email/verifyEmail](https://datacircle.dev/validate-email-apis/mailsfinder/191-88-yearly-growth-annual-post-email-verifyemail/llms.txt): $0.08 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 2026-11-11.

- https://agent-margin-router-production.up.railway.app/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://agent-margin-router-production.up.railway.app/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://agentmarginrouter.com/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://agentmarginrouter.com/prepaid?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://agentmarginrouter.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing