# ApiZero, free, No API key: Email verification API

> 综合性邮箱质量评估接口，一次请求完成 6 项检测

ApiZero's No API key plan for the email verification API costs $0.00 per 1,000 emails. ApiZero's docs list 3 of the 6 fields on our checklist: Address, Deliverability, Company.
We haven't run ApiZero through [our email verification API benchmark](https://datacircle.dev/best-email-verification-api.txt) yet.
This plan is free. We rank 4,039 plans for email verification APIs by price. Half the plans cost $1.999 per 1,000 emails or less. [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.
[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), [MailTester Ninja](https://datacircle.dev/validate-email-apis/mailtester-ninja/23-99-monthly/llms.txt) and [Giggal](https://datacircle.dev/validate-email-apis/giggal/39-pack-50000-credits-post-v1-verify/llms.txt) are the best email verification API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/validate-email-apis/apizero/free-no-api-key
- [Email validation API: 200+ verification providers compared](https://datacircle.dev/best-email-verification-api.txt)
- Get it: https://apizero.cn/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Request: `GET https://v1.apizero.cn/api/email-check`
- API key: not needed
- Its API docs: https://apizero.cn/aidocs/email-check?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- Sold by: ApiZero (https://apizero.cn?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing)
- Checked: 2026-11-07

## 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

## Catch-all

- $ per 1,000: $0.00

## In their words

- Their pitch: 综合性邮箱质量评估接口，一次请求完成 6 项检测

## Data

- What it checks: format, mail servers, disposable domains
- Keep data: no limit
- Use data: 禁止用途：违法、侵权、欺诈，或绕过他人服务的访问控制。把接口用于未获授权的个人信息批量采集。对平台或上游进行攻击、刷量或明显滥用。

## Plan

- Pay: $0
- You get: 5 requests a day
- Enough for: 5 calls a day

## Rate limit

- Per day: 5
- Per second: 2
- Batch: 1

## Speed

- Answer: in the call

## The call

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

## About the plan

- Plan: No API key
- Who can get it: anyone, with no API key

## The 14 fields the plan's answer can hold

email address, valid format, local part, domain, disposable, matched disposable domain, known provider, provider, MX record, MX records, did you mean, risk score, risk level, reasons

## ApiZero's plans (7)

- [ApiZero, free, No API key](https://datacircle.dev/validate-email-apis/apizero/free-no-api-key/llms.txt): $0.00 per 1,000, 50% complete
- [ApiZero, free, Trial](https://datacircle.dev/validate-email-apis/apizero/free-trial/llms.txt): $0.00 per 1,000, 50% complete
- [ApiZero, free, Logged in, no membership](https://datacircle.dev/validate-email-apis/apizero/free-logged-in-no-membership/llms.txt): $0.00 per 1,000, 50% complete
- [ApiZero, CNY 399 monthly](https://datacircle.dev/validate-email-apis/apizero/cny-399-monthly/llms.txt): $0.02 per 1,000, 50% complete
- [ApiZero, CNY 199 yearly](https://datacircle.dev/validate-email-apis/apizero/cny-199-yearly/llms.txt): $0.041 per 1,000, 50% complete
- [ApiZero, CNY 399 yearly](https://datacircle.dev/validate-email-apis/apizero/cny-399-yearly/llms.txt): $0.033 per 1,000, 50% complete
- [ApiZero, CNY 3,999 yearly](https://datacircle.dev/validate-email-apis/apizero/cny-3999-yearly/llms.txt): $0.016 per 1,000, 50% complete

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

- `GET /api/email-check`: [ApiZero, free, No API key](https://datacircle.dev/validate-email-apis/apizero/free-no-api-key/llms.txt)

## ApiZero's APIs (6)

- [ApiZero: business verification API pricing, 10 plans](https://datacircle.dev/business-verification-apis/apizero/free/llms.txt)
- [ApiZero: web scraping API pricing, 7 plans](https://datacircle.dev/web-scraping-apis/apizero/free-no-api-key/llms.txt)
- [ApiZero: Douyin profile API pricing, 7 plans](https://datacircle.dev/douyin-profile-apis/apizero/free-no-api-key/llms.txt)
- [ApiZero: domain WHOIS API pricing, 7 plans](https://datacircle.dev/domain-whois-apis/apizero/free-no-api-key/llms.txt)
- [ApiZero: email verification API pricing, 7 plans](https://datacircle.dev/validate-email-apis/apizero/free-no-api-key/llms.txt)
- [ApiZero: App Store API pricing, 7 plans](https://datacircle.dev/app-store-apis/apizero/free-no-api-key/llms.txt)

## ApiZero: email verification API alternatives

- [SignupVet, free](https://datacircle.dev/validate-email-apis/signupvet/free/llms.txt): $0.00 per 1,000, 67% complete
- [Botoi, $49 monthly, Pro, POST /v1/email/validate](https://datacircle.dev/validate-email-apis/botoi/49-monthly-pro-post-v1-email-validate/llms.txt): $0.016 per 1,000, 50% complete, stored (MX found, MX records: live)
- [EmailValidationTool, $30 pack, Business LTD, POST /v1/verify/single](https://datacircle.dev/validate-email-apis/emailvalidationtool/30-pack-business-ltd-post-v1-verify-single/llms.txt): $0.016 per 1,000, 67% complete
- [proxycheck.io, $4.99 monthly](https://datacircle.dev/validate-email-apis/proxycheck-io/4-99-monthly/llms.txt): $0.017 per 1,000, 33% complete, stored
- [Neutrino API, $50 monthly, Tier 2, GET /email-validate](https://datacircle.dev/validate-email-apis/neutrino-api/50-monthly-tier-2-get-email-validate/llms.txt): $0.017 per 1,000, 50% complete, stored

## 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://apizero.cn/aidocs/email-check/raw.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://apizero.cn/aidocs/prod/getting-started/billing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://apizero.cn/marketplace?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://apizero.cn/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing
- https://apizero.cn/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=email-verification-api-pricing