# ApiZero, free, No API key: Domain WHOIS API

> 查询域名注册信息（注册商 / 注册主体 / 创建时间 / 到期时间 / DNS 服务器 / 域名状态 / DNSSEC 等）。

ApiZero's No API key plan for the domain WHOIS API costs $0.00 per 1,000 domains. ApiZero's docs list 8 of the 9 fields on our checklist: Registrant, Registrar, Created on, Expires on, Name servers, Statuses, DNSSEC, Abuse contact.
We haven't run ApiZero through [our domain WHOIS API benchmark](https://datacircle.dev/best-domain-whois-api.txt) yet.
This plan is free. We rank 349 plans for domain WHOIS APIs by price. Half the plans cost $1.495 per 1,000 domains or less. [See the best free domain WHOIS API plan.](https://datacircle.dev/best-domain-whois-api.txt)
[Searchwire's $10 pack](https://datacircle.dev/domain-whois-apis/searchwire/10-pack/llms.txt) is the cheapest paid plan per 1,000 domains. Searchwire's domain WHOIS API costs nothing beyond the plan price.
[Enterno](https://datacircle.dev/domain-whois-apis/enterno/free-open-api/llms.txt), [Robtex](https://datacircle.dev/domain-whois-apis/robtex/free/llms.txt) and [DomScan](https://datacircle.dev/domain-whois-apis/domscan/49-monthly-scale-post-v1-whois-bulk/llms.txt) are the best domain WHOIS API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/domain-whois-apis/apizero/free-no-api-key
- [Domain WHOIS API: the 18 best providers compared](https://datacircle.dev/best-domain-whois-api.txt)
- Get it: https://apizero.cn/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Request: `GET https://v1.apizero.cn/api/whois`
- API key: not needed
- Its API docs: https://apizero.cn/aidocs/whois?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Sold by: ApiZero (https://apizero.cn?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing)
- Checked: 2026-11-07

## In the answer

- Completeness: 89%
- Registrant: ✓
- Registrar: ✓
- Created on: ✓
- Expires on: ✓
- Name servers: ✓
- Statuses: ✓
- DNSSEC: ✓
- Abuse contact: ✓

## Price

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

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: 查询域名注册信息（注册商 / 注册主体 / 创建时间 / 到期时间 / DNS 服务器 / 域名状态 / DNSSEC 等）。

## Data

- Freshness: 24 hours
- 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: domain. Optional: with_raw
- Method: GET
- Path: /api/whois

## About the plan

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

## The 22 fields the plan's answer can hold

domain, suffix, available, expired, expiring soon, registrar, registrant, registrant email, creation date, expiration date, domain age in days, domain age, days until expiry, domain status, name servers, WHOIS server, DNSSEC, registrar URL, registrar abuse email, registrar abuse phone, query time, raw WHOIS

## ApiZero's plans (7)

- [ApiZero, free, No API key](https://datacircle.dev/domain-whois-apis/apizero/free-no-api-key/llms.txt): $0.00 per 1,000, 89% complete, 24 hours
- [ApiZero, free, Trial](https://datacircle.dev/domain-whois-apis/apizero/free-trial/llms.txt): $0.00 per 1,000, 89% complete, 24 hours
- [ApiZero, free, Logged in, no membership](https://datacircle.dev/domain-whois-apis/apizero/free-logged-in-no-membership/llms.txt): $0.00 per 1,000, 89% complete, 24 hours
- [ApiZero, CNY 399 monthly](https://datacircle.dev/domain-whois-apis/apizero/cny-399-monthly/llms.txt): $0.02 per 1,000, 89% complete, 24 hours
- [ApiZero, CNY 199 yearly](https://datacircle.dev/domain-whois-apis/apizero/cny-199-yearly/llms.txt): $0.041 per 1,000, 89% complete, 24 hours
- [ApiZero, CNY 399 yearly](https://datacircle.dev/domain-whois-apis/apizero/cny-399-yearly/llms.txt): $0.033 per 1,000, 89% complete, 24 hours
- [ApiZero, CNY 3,999 yearly](https://datacircle.dev/domain-whois-apis/apizero/cny-3999-yearly/llms.txt): $0.016 per 1,000, 89% complete, 24 hours

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

- `GET /api/whois`: [ApiZero, free, No API key](https://datacircle.dev/domain-whois-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: domain WHOIS API alternatives

- [WhoisJSON, $800 yearly](https://datacircle.dev/domain-whois-apis/whoisjson/800-yearly/llms.txt): $0.015 per 1,000, 89% complete, 3 hours
- [Enterno, ₽3,990 monthly](https://datacircle.dev/domain-whois-apis/enterno/3990-monthly/llms.txt): $0.016 per 1,000, 89% complete, live
- [WhoisJsonAPI, $2,990 yearly, Enterprise, GET /v1/{domain}](https://datacircle.dev/domain-whois-apis/whoisjsonapi/2990-yearly-enterprise-get-v1-domain/llms.txt): $0.125 per 1,000, 78% complete, 24 hours
- [HackerTarget, $2,400 yearly](https://datacircle.dev/domain-whois-apis/hackertarget/2400-yearly/llms.txt): $0.329 per 1,000, 89% 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://apizero.cn/aidocs/prod/getting-started/billing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://apizero.cn/aidocs/whois/raw.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://apizero.cn/marketplace?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://apizero.cn/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://apizero.cn/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing