# Agent Extraction API, free call, GET /api/email-verify: Email verification API

> Email address check WITHOUT sending mail or SMTP probing: RFC-style syntax check, domain MX/A records via DNS-over-HTTPS, disposable-domain flag (CC0 blocklist, ~9,900 domains), role-address flag (info@, support@...), free-mail flag.

Agent Extraction API's Free call plan for the email verification API costs $0.00 per 1,000 emails. We check each provider's docs for 6 fields. Agent Extraction API's docs list 3: Address, Deliverability, Company.
You get $1 of credit. You spend the credit on Agent Extraction API's other calls. This call is free for up to 1 call in all.
We ran Agent Extraction API in [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt). We didn't score any Agent Extraction API plan.
This plan is free. We rank 4,337 plans for email verification APIs by price. Half the plans cost $2.00 or less per 1,000 emails. [See the best free email verification API plan.](https://datacircle.dev/best-email-verification-api.txt)
[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-extraction-api/free-call-get-api-email-verify
- [Email validation API: best verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://freetier-agent-api.pages.dev?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `GET https://freetier-agent-api.pages.dev/api/email-verify`
- API key: not needed
- Its API docs: https://freetier-agent-api.pages.dev/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing#/paths/~1api~1email-verify
- Sold by: Agent Extraction API (https://freetier-agent-api.pages.dev?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: $0.00
- Per: call
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Email address check WITHOUT sending mail or SMTP probing: RFC-style syntax check, domain MX/A records via DNS-over-HTTPS, disposable-domain flag (CC0 blocklist, ~9,900 domains), role-address flag (info@, support@...), free-mail flag.

## Data

- What it checks: format, mail servers, disposable domains, role addresses
- Keep data: no limit
- Use data: Data is provided as is, for information. Each response names its sources and their licenses.

## Plan

- Pay: $0
- You get: $1
- Enough for: 1 call, once
- Expires: never

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: email
- Method: GET
- Path: /api/email-verify

## About the plan

- Plan: Free call
- Who can get it: anyone, no wallet or account

## The 17 fields the plan's answer can hold

email, syntax OK, local part length, domain, has MX, MX records, MX host, MX preference, has A record, null MX, disposable, role, free mail, verdict, reasons, note, sources

## Agent Extraction API's plans (5)

- [Agent Extraction API, free call, GET /api/email-verify](https://datacircle.dev/validate-email-apis/agent-extraction-api/free-call-get-api-email-verify/llms.txt): $0.00 per 1,000, 50% complete
- [Agent Extraction API, pay as you go, x402 pay per call, GET /api/email-verify](https://datacircle.dev/validate-email-apis/agent-extraction-api/pay-as-you-go-x402-pay-per-call-get-api-email-verify/llms.txt): $4.00 per 1,000, 50% complete
- [Agent Extraction API, $3 pack, 1,000 credits, GET /api/email-verify](https://datacircle.dev/validate-email-apis/agent-extraction-api/3-pack-1000-credits-get-api-email-verify/llms.txt): $12.00 per 1,000, 50% complete
- [Agent Extraction API, $12 pack, 5,000 credits, GET /api/email-verify](https://datacircle.dev/validate-email-apis/agent-extraction-api/12-pack-5000-credits-get-api-email-verify/llms.txt): $9.60 per 1,000, 50% complete
- [Agent Extraction API, $40 pack, 20,000 credits, GET /api/email-verify](https://datacircle.dev/validate-email-apis/agent-extraction-api/40-pack-20000-credits-get-api-email-verify/llms.txt): $8.00 per 1,000, 50% complete

## Agent Extraction API's calls for this API (3)

- `GET /api/email-verify-quick`: [Agent Extraction API, free call, GET /api/email-verify-quick](https://datacircle.dev/validate-email-apis/agent-extraction-api/free-call-get-api-email-verify-quick/llms.txt)
- `GET /api/email-verify-batch`: [Agent Extraction API, free call, GET /api/email-verify-batch](https://datacircle.dev/validate-email-apis/agent-extraction-api/free-call-get-api-email-verify-batch/llms.txt)
- `GET /api/email-verify`: [Agent Extraction API, free call, GET /api/email-verify](https://datacircle.dev/validate-email-apis/agent-extraction-api/free-call-get-api-email-verify/llms.txt)

## Agent Extraction API's APIs (6)

- [Agent Extraction API: tech stack API pricing, 5 plans](https://datacircle.dev/company-technology-apis/agent-extraction-api/free/llms.txt)
- [Agent Extraction API: domain WHOIS API pricing, 5 plans](https://datacircle.dev/domain-whois-apis/agent-extraction-api/free/llms.txt)
- [Agent Extraction API: news API pricing, 5 plans](https://datacircle.dev/news-apis/agent-extraction-api/free/llms.txt)
- [Agent Extraction API: company enrichment API pricing, 5 plans, GET /api/company-batch](https://datacircle.dev/company-enrichment-apis/agent-extraction-api/free-call-get-api-company-batch/llms.txt)
- [Agent Extraction API: company enrichment API pricing, 5 plans, GET /api/company-profile](https://datacircle.dev/company-enrichment-apis/agent-extraction-api/free-call-get-api-company-profile/llms.txt)
- [Agent Extraction API: email verification API pricing, 5 plans, GET /api/email-verify](https://datacircle.dev/validate-email-apis/agent-extraction-api/free-call-get-api-email-verify/llms.txt)
- [Agent Extraction API: web scraping API pricing, 5 plans, GET /api/page-rag](https://datacircle.dev/web-scraping-apis/agent-extraction-api/free-call-get-api-page-rag/llms.txt)
- [Agent Extraction API: web scraping API pricing, 5 plans, GET /api/page-markdown](https://datacircle.dev/web-scraping-apis/agent-extraction-api/free-call-get-api-page-markdown/llms.txt)

## Agent Extraction API: email verification API alternatives

- [Verimail, $4 pack](https://datacircle.dev/validate-email-apis/verimail/4-pack/llms.txt): $4.00 per 1,000, 50% complete, live
- [MailValid, $8 pack, Pay-as-you-go 2,000 credits, POST /api/v1/verify/bulk](https://datacircle.dev/validate-email-apis/mailvalid/8-pack-pay-as-you-go-2000-credits-post-api-v1-verify-bulk/llms.txt): $4.00 per 1,000, 67% complete, 30 days
- [Easy Email Verification, $200 pack, Pay-as-you-go, 50,000 emails, POST /bulk/upload](https://datacircle.dev/validate-email-apis/easy-email-verification/200-pack-pay-as-you-go-50000-emails-post-bulk-upload/llms.txt): $4.00 per 1,000, 50% complete, live
- [QuickEmailVerification, $200 pack, Persistent Credits, 50,000 credits, GET /v1/verify](https://datacircle.dev/validate-email-apis/quickemailverification/200-pack/llms.txt): $4.00 per 1,000, 50% complete, live
- [x402 Vending Machine, pay as you go](https://datacircle.dev/validate-email-apis/x402-vending-machine/pay-as-you-go/llms.txt): $4.00 per 1,000, 17% complete

## 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://freetier-agent-api.pages.dev?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://freetier-agent-api.pages.dev/.well-known/x402?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://freetier-agent-api.pages.dev/llms-full.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://freetier-agent-api.pages.dev/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing